中国物理B ›› 2019, Vol. 28 ›› Issue (1): 17102-017102.doi: 10.1088/1674-1056/28/1/017102
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
Wen Zhang(张文), Qiu-Yun Chen(陈秋云), Dong-Hua Xie(谢东华), Yi Liu(刘毅), Shi-Yong Tan(谭世勇), Wei Feng(冯卫), Xie-Gang Zhu(朱燮刚), Qun-Qing Hao(郝群庆), Yun Zhang(张云), Li-Zhu Luo(罗丽珠), Xin-Chun Lai(赖新春)
Wen Zhang(张文), Qiu-Yun Chen(陈秋云), Dong-Hua Xie(谢东华), Yi Liu(刘毅), Shi-Yong Tan(谭世勇), Wei Feng(冯卫), Xie-Gang Zhu(朱燮刚), Qun-Qing Hao(郝群庆), Yun Zhang(张云), Li-Zhu Luo(罗丽珠), Xin-Chun Lai(赖新春)
摘要:
Two nonstoichiometric UAu1-xSb2 (x=0.25, 0.1) single crystals are successfully synthesized using a flux method, and their physical properties are comprehensively studied by measuring the dc-magnetization and electrical resistivity. Evidence for at least three magnetic phases is found in these samples. In zero field, both samples undergo an antiferromagnetic transition at a relatively high temperature, and with further cooling they pass through another antiferromagnetic phase, before reaching a ferromagnetic ground state. Furthermore, the magnetic order can be tuned by varying the site occupation of Au. Such a tunable magnetic order may provide an opportunity for exploring the potential quantum critical behavior in this system.
中图分类号: (Valence fluctuation, Kondo lattice, and heavy-fermion phenomena)