Lattice Modulation And Structural Phase Transition In The Antiferromagnet Eual4
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN(2019)
摘要
X-ray diffraction measurements on the antiferromagnet EuAl4 using synchrotron radiation have revealed that satellite peaks characterized by an incommensurate wave vector (0, 0, zeta) with zeta approximate to 0.18 appear below 145.1 K, suggesting the formation of a charge density wave. The value of zeta shows an inflection at an antiferromagnetic transition temperature of 15.4K, and it changes discontinuously at lower antiferromagnetic transition temperatures of 12.2 and 10.0K. The antiferromagnetic transition at 12.2 K is accompanied by a structural transition from the modulated structure on a tetragonal lattice to that on a lattice with lower symmetry such as an orthorhombic one.
更多查看译文
关键词
antiferromagnet eual<sub>4</sub>,structural phase transition,lattice,modulation
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络