Optimizing the thickness of the active layer is essential to improve the performance of organic solar cells. In this study, we examined how the thickness of the active layer, made of a P3HT:PC61BM blend, influences the key electrical parameters of inverted organic solar cells. Four prepared photovoltaic cells were prepared using a typical device structure of ITO /ZnO /P3HT:PC61BM /MoO3 /Ag . The active layer of P3HT : PC61BM was deposited by spin coating with different thicknesses of 80, 150, 200, and 300 nm. We used the different J-V characteristics to extract parameters such as the open-circuit voltage, short-circuit current density, series resistance, and shunt resistance. Based on these measurements, the results indicate that Voc remains nearly stable between 80 nm and 200 nm, before dropping sharply at 300 nm due to recombination losses. Furthermore, Jsc increases with thickness and reaches its maximum at 300 nm, thanks to improved light absorption. The fill factor peaks (~50%) at a thickness of 150 nm, then decreases, reflecting an imbalance between charge collection and internal losses. To provide a deep understanding of this behavior, we also analyzed the resistive parameters. The series resistance Rs increases from 27.11 Ω·m² to 27.52 Ω·m² when the thickness increases from 80 to 150 nm due by the increased defect density in the layer structure with additional layer stacking, then rises to 28.87 –34.55 Ω·m² for 200–300 nm respectively because of the longer charge transport path and increased recombination. Finally, the shunt resistance Rsh increases up to 150 nm suggests improved film uniformity and better surface coverage, thus minimizing shunt defects, before decreasing at 200 and 300 nm. This suggests that increasing the material volume statistically leads to a higher density of volumetric defects.

Sr0.54Ca0,46Fe6.5-xNixAl5.5O19 (0 <= x <= 0.3) hexaferrite powders were prepared by the sol-gel auto combustion method and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Magnetic measurements were performed with physical properties measurement system (PPMS). The lattice parameters, volume, and lattice strain were calculated. XRD analyses revealed a reduction in crystallite size with increasing Ni content. Interestingly, the magnetic analysis indicated that nickel, with its low magnetic moment, significantly enhanced the magnetization of Sr0.54Ca0.46Fe6.5-xNixAl5.5O19 (0.0 <= x <= 0.3) and reduced the coercive field. Furthermore, the Law of Approach to Saturation (LAS) theory was employed to extract the first anisotropy constant, the anisotropy field, and several essential magnetic parameters, providing valuable insights into the magnetic behavior of samples.

Recently identified hydrogen-rich materials, particularly CeH9, have emerged as highly promising candidates for high-Tc temperature superconductors, presenting significant implications for various technological applications. In this study, we utilize ab-initio calculations to explore the electronic, elastic, thermodynamic, and optical properties of CeH9. Our results reveal that CeH9 displays metallic behavior, characterized by a significant overlap between the cerium 4f and hydrogen 1s orbitals. Notably, its low thermal conductivity, approximately 2 W m- 1 K- 1 around 170 K, helps to minimize thermal fluctuations, thereby facilitating the formation of Cooper pairs, which are crucial for superconductivity. Additionally, the Debye temperature, determined to be 1240.5 K, highlights the robust atomic bonding within the material. The electron-phonon coupling constant, calculated as 1.3, underscores the strong potential of the superhydride CeH9 for high-temperature superconductivity. Furthermore, CeH9 demonstrates remarkable elastic and mechanical properties, showcasing impressive rigidity and stability. The optical properties reveal considerable anisotropy, with an extinction coefficient varying from 1.89 in-plane to 3.36 out-of-plane, and optical conductivity ranging from 5300 to 9700 (Omega cm)-1, along with a refractive index increase from 3.3 to 4.4. This research deepens our understanding of the physical properties of CeH9.

Improved rare-earth-free M-type hexaferrite powders with the formula Ba0.54Ca0.46Fe6.5Al5.5O19 were synthesized via the sol-gel auto-combustion method. The samples were annealed between 1100 degrees C and 1250 degrees C with a 50 degrees C step. The effects of annealing treatment on the structural, microstructural and magnetic properties were studied. X-ray diffraction analysis show Ba0.54Ca0.46Fe6.5Al5.5O19 as major phase with impurity for the calcination temperatures below 1250 degrees C and single phase at 1250 degrees C. The average crystal size increases (50.23-74.14 nm) with the increase in the annealing temperature. The surface morphology was examined using field emission scanning electron microscopy, an average grain size was found to increase from 0.58 to 0.97 mu m. Ba0.54Ca0.46Fe6.5Al5.5O19 powders showed an enormous coercivity (Hc) that increased from a value of 21.16 kOe to 24.18 kOe with increasing annealing temperature from 1100 degrees C to 1250 degrees C. Various magnetic parameters were estimated including the anisotropy field (Ha) and the effective magnetic anisotropy constant (Keff) which permitted us to understand the effect of annealing treatment on the values of Hc. The obtained Hc values in Ba0.54Ca0.46Fe6.5Al5.5O19 powders demonstrate a significant potential for the high-density recording applications, thereby presenting a cost-effective alternative to expensive rare-earth materials.

The growing demand for rare-earth-free magnetic materials with high coercivity (Hc) and thermal stability has motivated extensive research on M-type hexaferrites as alternatives for high-density magnetic storage and microwave applications. In this work, M-type hexaferrites A0.54Ca0.46Fe6.5Al5.5O19 (A = Ba and Sr) were synthesized via the sol-gel auto-combustion method to investigate the effect of the ionic radius of Ba2+ and Sr2+ on the structural, microstructural and magnetic properties. X-ray diffraction confirmed the formation of the M-type structure with minor traces of α-Fe2O3 in the Ba0.54Ca0.46Fe6.5Al5.5O19 sample. Rietveld refinement revealed that replacing Ba²⁺ with the smaller Sr²⁺ ion induces lattice contraction and shortens the Fe-O bond length at the (2b) bipyramidal site, thereby enhancing magnetocrystalline anisotropy (Keff). This structural modification leads to a higher Hc (26.33 kOe) for the Sr0.54Ca0.46Fe6.5Al5.5O compound compared to 23.43 kOe for the Ba0.54Ca0.46Fe6.5Al5.5O19. Temperature-dependent magnetic measurements showed that at 10 K, reduced thermal disorder exposes the intrinsically higher magnetic moment of the Ba0.54Ca0.46Fe6.5Al5.5O19 sample, whereas at 300 K the Sr0.54Ca0.46Fe6.5Al5.5O19 sample exhibits superior magnetic hardness due to stronger Fe–O superexchange interactions. These results demonstrate that precise cation tuning in Ca–Al co-substituted M-type hexaferrites offers an effective route to achieving high Hc without relying on scarce or costly rare-earth elements. The optimized Sr0.54Ca0.46Fe6.5Al5.5O19 composition combines structural stability, high anisotropy, and strong room-temperature Hc, making it a promising candidate for next-generation high-density magnetic recording and high-frequency electromagnetic applications.

The growing demand for rare-earth-free magnetic materials with high coercivity (Hc) and thermal stability has motivated extensive research on M-type hexaferrites as alternatives for high-density magnetic storage and microwave applications. In this work, M-type hexaferrites A0.54Ca0.46Fe6.5Al5.5O19 (A = Ba and Sr) were synthesized via the sol-gel auto-combustion method to investigate the effect of the ionic radius of Ba2+ and Sr2+ on the structural, microstructural and magnetic properties. X-ray diffraction confirmed the formation of the M-type structure with minor traces of alpha-Fe2O3 in the Ba0.54Ca0.46Fe6.5Al5.5O19 sample. Rietveld refinement revealed that replacing Ba-2(+) with the smaller Sr-2(+) ion induces lattice contraction and shortens the Fe-O bond length at the (2b) bipyramidal site, thereby enhancing magnetocrystalline anisotropy (Keff). This structural modification leads to a higher Hc (26.33 kOe) for the Sr0.54Ca0.46Fe6.5Al5.5O compound compared to 23.43 kOe for the Ba0.54Ca0.46Fe6.5Al5.5O19. Temperature-dependent magnetic measurements showed that at 10 K, reduced thermal disorder exposes the intrinsically higher magnetic moment of the Ba0.54Ca0.46Fe6.5Al5.5O19 sample, whereas at 300 K the Sr0.54Ca0.46Fe6.5Al5.5O19 sample exhibits superior magnetic hardness due to stronger Fe-O superexchange interactions. These results demonstrate that precise cation tuning in Ca-Al co-substituted M-type hexaferrites offers an effective route to achieving high Hc without relying on scarce or costly rare-earth elements. The optimized Sr0.54Ca0.46Fe6.5Al5.5O19 composition combines structural stability, high anisotropy, and strong room-temperature Hc, making it a promising candidate for next-generation high-density magnetic recording and high-frequency electromagnetic applications.

Nanocrystalline NdFeO3 was synthesized via a sol–gel route. The structural and morphological study was achieved by X-ray diffraction, transmission electron microscopy (TEM) and Field Emission Scanning Electron Microscopy (FESEM). The Rietveld refinement of the X-ray diffraction pattern showed a single orthorhombic phase with the Pbnm space group. The average crystallite size was about 44 nm. The electrical behavior of the as-prepared sample was investigated in a frequency range of 0.1 Hz − 1 MHz at different temperatures. We showed that the dielectric response is of the non-Debye type. Impedance spectroscopy confirmed that DC conductivity could be described by Mott’s VRH (variable range hopping) model at 298–423 K temperature range. In addition, the hopping distance (Rhop) decreases as the hopping energy (Whop) increases, leading to an overall increase in electrical conductivity. The UV–Vis absorption spectra measured at room temperature showed a strong absorption in the ultraviolet range (200–400 nm). From the Tauc plot, the band gap was estimated to be 2.58 eV. DFT calculations were also achieved with generalized gradient approximation (GGA + U) using Wien2k code. The electronic band structure and the DOS calculation were investigated. We found a sensible agreement between the experimental results and the calculated ones.

Quantum spin liquids (QSLs), known for their competing interactions that prevent conventional ordering, exhibit emergent phenomena and exotic properties resulting from quantum correlations. Despite these recent advancements of QSLs, a significant portion of the optical and thermodynamic properties in the Kagome lattice remains unknown. In addition, the thermodynamic phenomenology of NaRuO2 bears resemblance that of highly frustrated magnets. Here, we employed ab-initio calculations to explore the electronic, optical and thermodynamic properties of NaRuO2, a new QSL candidate. NaRuO2 was identified as a semiconductor with a small bandgap energy of 0.69 eV. Our results reveal a huge anisotropic optical properties, in which distinct refractive index within the ab-plane indicating an impressive birefringent character of the NaRuO2 system, and a significant enhancement of the optical absorption coefficient and optical conductivity in the in -plane with respect the c -axis. The investigation also examines the electronic anisotropy of the gap energy, by applying strain the gap energy displays significant variations in the ab-plane compared to the out -of -plane direction. Conversely, calculations of the thermodynamic properties reveal a low thermal conductivity (2.5-0.5 W m-1. K-1) and specific heat, which suggests the existence of strong interactions among the NaRuO2 quantum spins. The calculated linear specific heat behavior in NaRuO2 suggests the fractionalization of electrons and the presence of a spinons Fermi surface. These findings hold promising potential for future quantum applications.

Nitrogen-containing gases present notable threats to the human health and the environment, largely attributed to increased toxicity arising from industrial processes. This study assesses the reactivity of strained and unstrained h-BC2N 2 N monolayers towards NO2 , 2 , NH3 , 3 , and HCN gases using density functional theory and ab-initio molecular dynamics simulations. The monolayer-gas interactions were analyzed by incorporating van der Waals dispersion correction. Biaxial tensile strain was found to reduce the band gap from 2.2 eV (unstrained) to 2.1 eV (4 % strained). NO2 2 gas adsorption energy notably increases across strain levels from-0.43 eV to-0.68 eV for 0 %-4 % strain, respectively. Conversely, NH3 3 and HCN show low adsorption energies on both strained and unstrained h-BC2N 2 N monolayers. Electronic analyses indicate the heightened sensitivity of NO2 2 compared to NH3 3 and HCN, with minimal sensitivity shown towards H2O, 2 O, CO2 , 2 , HF, H2 , 2 , and H2S 2 S gases, suggesting high selectivity for NO2. 2 . Recovery time increases significantly from 18.98 mu s to 323 ms with strain levels from 0 % to 4 %, enhancing NO2 2 adsorption stability. Ab-initio molecular dynamics simulations conducted at 300K validate the stability of both the unstrained and strained BC2N 2 N monolayers. The revealed adsorption mechanism highlights the stability, sensitivity, selectivity, and recyclability of strained h-BC2N 2 N monolayers for NO2 2 gas sensing.

α-RuCl3 constitutes a fascinating system that exhibits intriguing Kitaev physics. In this study, we investigate the electronic, optical, and magnetic properties of the Kitaev spin liquid candidate α-RuCl3 by employing ab-initio calculations with an emphasis on the anisotropic effect. α-RuCl3 was found to be a semiconductor with a band gap energy of 1.41 eV. Our results show a significant anisotropy of the optical properties in the ab plane with respect to the c-axis. As well as a huge anisotropy in the absorption coefficient showing twice the absorption in-plane compared to out-of-plane (9 × 105cm−1 to 1.5 × 106cm−1), distinct refractive index within the plane indicating the birefringent character of the α-RuCl3, and an exceptional optical conductivity in-plane with an impressive enhancement that exceeds 104 (Ω.cm)−1. Interestingly, we have observed a significant competition between the ferromagnetic and antiferromagnetic-zigzag configurations. The fragility of the zigzag order arises from its vulnerability to disruptions induced by concurrent ferromagnetic correlations. Furthermore, we investigated the impact of mechanical strain on the magnetic behavior of RuCl3, where, both ferromagnetic and antiferromagnetic -zigzag configurations displayed minimal energy differences, emphasizing their competitive nature even at applied external strain in the studied range (±3 %). Overall, our study highlights the multifunctional physical properties of α-RuCl3.

In this work, we present the optimized principal methods of surface cleaning and treatment for CdTe nuclear detectors, namely: powder lapping, polishing and chemical etching mainly by Br- Methanol. We have studied the electric field mapping by Pockels effect technique. We made a comparison between the three main methods of Pt contact deposition: molecular beam epitaxy, cathode sputtering and the electroless (autocatalytic) methods in term of I(V) characteristic and electric field mapping. The two first method show: i) quite high uniform electric field, ii) the characteristic I(V) is non-uniform, iii) the detection suffer from the polarization effect. The I (V) characteristic shows that the contact is not ohmic. It is in the reversible I ∼ Vn with n varying from 0.643 to 1.651. The optimized contact deposit by electroless technique seems to be the more suitable one for detection with 2.10−8 A current at 200 V, a quite high uniform electric field up to 7 kV/cm, an absence of polarization effect and a spectrometric quality of nuclear detection.

We investigate the structural, linear and nonlinear optical properties of LaFe1-xCuxO3 (x = 0, 0.05, and 0.1) nanoparticles using XRD, SEM, and UV-visible spectroscopy techniques. The sol-gel technique was utilized to prepare the studied nanoparticles. The structural study shows that all compounds crystallize in the orthorhombic structure with the Pnma space group. The optical constants and parameters such as refractive index, extinction coefficient and dielectric constants were determined from the absorbance, transmission and reflectance. The refractive index (n) and extinction coefficient (k) were found to increase with increasing Cu content. As the Cu concentration increases from 0 to 0.1, the band gap energy (Eg) values were found to increase from 2.389 to 2.44 eV, while the Urbach energy (Eu) decreases from 0.42 eV to 0.312 eV. The single oscillator energy (E0) values were found to increase from 5.80 eV to 6.001 eV with increasing Cu content, as well as the dispersion energy (Ed) increases from 16.11 eV to 22.12 eV. For these samples, the nonlinear optical susceptibility (chi(3)) and nonlinear refractive index were determined to be between 1.3898 x 10-12 esu and 3.2906 x 10-12esu and 26.9436 x 10-12 - 57.2780 x 10-12esu respectively. These calculated parameters show also an increasing trend with Cu doping content.

Nb3Cl8 is a unique subset of 2D crystalline materials renowned for their Kagome structure and distinctive flat energy bands. These bands contribute to the distinct electronic behavior, rendering Nb3Cl8 a compelling subject for study. In this study, by employing ab initio calculations, the impact of pressure on the electronic properties of Nb(3)Cl(8)is scrutinized, yielding valuable insights. Under high pressures, Nb3Cl8 undergoes a transition from a semiconductor state (with a 1.23 eV bandgap) to a metallic one, accompanied by electronic band restructuration. Notably, the flat energy bands are suppressed with increasing pressure. Furthermore, this investigation underscores the distinctive nature of flat energy bands in Nb3Cl8, delving into quantum effects, particularly their association with the quantum confinement of electronic states. The confinement of charge carriers in Nb3Cl8 results in discrete energy levels, corresponding to specific orbitals in the density of states, indicating robust electron confinement. Pressure-induced changes in the energy gap between these quantized levels suggest a decrease in confinement strength. Consequently, the study lays a robust foundation for future exploration, contributing to the development of innovative electronic devices grounded in quantum confinement effects.

The structural, electronic, elastic, optical, phonon, and thermo-physical properties of the tetragonal X2CoH5 (X = Ca, Sr) hydrogen storage compounds were thoroughly examined using first-principles calculations. The negative formation enthalpies (-76.03 kJ/mol.H-2 for Ca2CoH5 and -72.55 kJ/mol.H-2 for Sr2CoH5) highlight the structural stability of these materials. Phonon calculations revealed no imaginary frequency modes, confirming the dynamic stability of X2CoH5. The mechanical stability of Ca2CoH5 and Sr2CoH5 was evidenced by the compliance of the elastic constants with Born stability criteria. The electronic band structure indicates that Ca2CoH5 and Sr2CoH5 are direct bandgap semiconductors with narrow bandgaps of similar to 0.27 and 0.34 eV, respectively. The appraisal of Poisson's ratio (v = 0.22 for X = Ca and 0.23 for Sr) and Pugh's ratio (B/G = 1.47 for X = Ca and 1.56 for Sr) suggests that both metal hydrides exhibit brittle mechanical behavior. Moreover, 3D plots of Young's modulus (E), shear modulus (G), linear compressibility (beta), and Poisson's ratio (nu) uncover anisotropy within X2CoH5. The hydrogen storage capabilities were scrutinized, and the present materials feature excellent volumetric hydrogen density (95.65 gH(2)l(-1) for Ca2CoH5 and 80.24 gH(2)l(-1) for Sr2CoH5), moderate gravimetric hydrogen density (3.38 wt% for Ca2CoH5 and 2.06 wt% for Sr2CoH5) and high hydrogen desorption temperature (584 K for Ca2CoH5 and 558 K for Sr2CoH5). Notably, the obtained volumetric hydrogen densities are in line with the volumetric capacity criteria set by the U.S. Department of Energy (DOE) for 2025. Finally, the optical and thermo-physical characteristics of X2CoH5 compounds were also investigated in this work.

Sulfur hexafluoride (SF6) is widely employed in industrial applications due to its interesting insulating properties. However, under electrical discharge conditions, it can undergo decomposition, yielding hazardous gases such as SOF2, SO2F2, and SO2, which can pose significant risks due to their increased toxicity and corrosive nature, affecting human health, the environment, and equipments. In this investigation, we employed density functional theory and ab-initio molecular dynamics to evaluate the stability of AlC3 monolayer and investigate its sensing capabilities. The findings establish the AlC3 monolayer as a champion material for detecting SF6 decomposition gases, specifically SOF2, SO2F2, and SO2. Importantly, the AlC3 monolayer exhibited low sensitivity to humidity and other gases, including CO2, CO, HF, H2, HCN, and H2S, highlighting its exceptional selectivity. SO2F2 exhibited the substantial adsorption energy of −1.36 eV, a work function of 5.2 eV, and a −0.69e charge transfer. Similarly, SO2 and SOF2 displayed significant adsorption energy (-1.19 eV and −1.08 eV, respectively), work functions (4.55 eV and 4.81 eV), and charge transfers (-0.61e and 0.78e). The significant variation in work function upon SO2F2 adsorption indicates the AlC3 monolayer's potential selectivity for SO2F2 over SO2 and SOF2, making it a promising material for surface work function modulated transistors. Ab-initio molecular dynamics simulations confirm AlC3 monolayer stability after adsorption at 300 K, validating predicted positions by density functional theory.

To investigate the influence of annealing temperature and lanthanum substitution on the structural properties of M-type calcium hexaferrite, we prepared unsubstituted and lanthanum-substituted Ca1-xLaxFe12O19 (x = 0.3, 0.4 and 0.5) powders by mean of sol–gel auto-combustion procedure, annealed between 800 °C and 1350 °C during 5 h in a rate of 180 °C per hour. XRD analysis showed that the M-type phase does not appear in the unsubstituted samples even with annealing at 1200 °C. The XRD patterns of the substituted samples contained peaks of the M-type phase with the presence of α-Fe2O3 as a secondary phase, the intensity of α-Fe2O3 decreased with increasing annealing temperature between 1200 °C and 1350 °C, and also as a function of lanthanum substitution concentration, which shows that the best lanthanum substitution concentration was x = 0.5. Lattice parameters of synthesized Ca0.5La0.5Fe12O19 align with literature results of various M-type hexaferrite. SEM micrographs of the Ca0.5La0.5Fe12O19 annealed at 1350 °C revealed that the mean and median crystallite size values were calculated to be 4.37 μm and 4.32 μm respectively.

Pb(Mg1/3Nb2/3)O3-PbTiO3 nanoparticles were synthesized by solid-state route. The crystal structure and optical properties were characterized by X-ray diffraction and UV–visible spectroscopy. X-ray diffraction confirmed the perovskite structure and the mean size of the crystallites was determined by employing the Williamson–Hall (W–H) model. From the UV–Visible measurements, several fundamental optical properties such as transmittance, absorbance, refractive index, band gap (Eg), Urbach energy, optical conductivity, dielectric function, and absorption coefficient were determined. The band gap energy was found to be around 3.05 eV with a high transmittance value for high wavelength. Further, the optical data were utilized to investigate the linear susceptibility, third-order nonlinear optical susceptibility, and nonlinear refractive index of the sample. It is found that the values of χ(1), χ(3) and n2 were equal to 0.053 esu, 1.33 × 10−15 esu, and 3.88 × 10−14 esu, respectively.

This study showcases the intriguing electronic, optical, and thermodynamic properties of Nb3Cl8, an exceptional class of two-dimensional (2D) crystalline materials renowned for their Kagome structure and an exceptional band arrangement featuring remarkably flat energy bands. Nb3Cl8 was found to be a semiconductor with a narrow bandgap energy of 1.23 eV. Our study reveals pronounced anisotropic behavior in various optical aspects, extending within and perpendicular to the ab-plane. We show a distinctive anisotropy in parameters like the refractive index (4.5 in -plane compared to 2.75 out -of -plane), the optical conductivity (8000 (omega cm) -1 in -plane compared to 100 (omega cm) -1 in out -of -plane), and the absorption coefficient (105 cm- 1 within the plane as opposed to 104 cm -1 in the out -of -plane direction). In addition, the thermodynamic calculations unveil a transition, distinguished by a Schottky anomaly occurring in the specific heat capacity at approximately 100K which is closely associated with the Ne ' el transition of the Nb3Cl8 compound. The presence of robust interactions among quantum spins within Nb3Cl8 was supported by its low thermal conductivity, ranging from 6 to 0.7 W m- 1. K-1. This study not only deepens our comprehension of the optical, electronic, and thermodynamic properties of Nb3Cl8 but also establishes a basis for future innovative technological applications.

La2FeCrO6 nanoparticles were prepared using sol-gel method and their linear and non-linear optical properties were investigated. Optical transmittance and absorption were measured for wavelengths between 200 and 1000 nm using UV-visible analysis at room temperature. The results demonstrated the potential use of La2FeCrO6 in optoelectronics applications due to its interesting optical properties. Transmittance and absorption, as well as absorption coefficients, band gap (Eg), Urbach energy (Eu), refractive coefficients, optical conductivity, and dielectric function were examined. According to the analysis, the band gap energy was determined to be 3.501 eV using the Tauc method, while the Urbach energy value was 0.324 eV. Non-linear sensitivities of the first and third order were also calculated, along with linear and non-linear refractive constants. The results lead to the conclusion that La2FeCrO6 represents a promising material for applications in the field of optical electronics, taking into consideration its optical properties, whether linear or non-linear.

We report on the structural, magnetic, and magnetocaloric properties of EuRhO3 powders. The oxidation states of Eu and Rh ions were studied using X-ray photoelectron spectroscopy (XPS). It is found that the Eu ions are mainly in the divalent oxidation state while the Rh ions have +4 state. EuRhO3 powders are found to be antiferromagnetic with a second order magnetic transition at N & eacute;el temperature (T-N = 2.9 K). Analysis of the magnetic susceptibility versus temperature data in terms of the Curie-Weiss law: (chi = C/(T-theta(W))) for T > T-N, yields theta(W) = -3.1 K and effective magnetic moment mu(exp)(eff) = 7.72 mu(B), which is close to the theoretical value mu(theo)(eff) = 7.94 mu(B). The magnetic entropy change (-Delta S-M), was determined by employing the thermodynamic Maxwell's relation. At mu H-0 = 5 T and near T-N, (-Delta S-M(Max)) and relative cooling power (RCP) exhibit large values of 33.7 J/(kg & sdot;K) and 238 J/kg, respectively. The large magnitude of -Delta S-M and RCP show that the EuRhO3 compound could be a potential candidate to be used in cryogenic magnetic refrigeration. (c) 2023 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.