Magnetic phase transitions inCeRh 2 Si 2 : Specific heat, susceptibility, and resistance studies
Physical review(1998)
摘要
Two phase transitions near 35 and 24 K can be detected in the specific heat, susceptibility, and resistivity of ${\mathrm{CeRh}}_{2}{\mathrm{Si}}_{2}.$ We interpret the 35 K transition as magnetic ordering in a ($\frac{1}{2}$ $\frac{1}{2}$ $\frac{1}{2}$) structure. The much weaker transition near 24 K corresponds to the development of domains having a ($\frac{1}{2}$ $\frac{1}{2}$ 0) magnetic structure that grow spatially at the expense of the ($\frac{1}{2}$ $\frac{1}{2}$ $\frac{1}{2}$) structure. This interpretation of the magnetic phase diagram of ${\mathrm{CeRh}}_{2}{\mathrm{Si}}_{2}$ clarifies a controversy surrounding observations by neutron diffraction.
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关键词
magnetic phase transitions
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