Ferromagnetism in layered metastable 1T-CrTe2

被引:168
作者
Freitas, Daniele C. [1 ,2 ,3 ]
Weht, Ruben [4 ,5 ]
Sulpice, Andre [1 ,2 ]
Remenyi, Gyorgy [1 ,2 ]
Strobel, Pierre [1 ,2 ]
Gay, Frederic [1 ,2 ]
Marcus, Jacques [1 ,2 ]
Nunez-Regueiro, Manuel [1 ,2 ]
机构
[1] Univ Grenoble Alpes, Inst Neel, F-38042 Grenoble 9, France
[2] CNRS, F-38042 Grenoble 9, France
[3] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, RJ, Brazil
[4] CNEA, Gerencia Invest & Aplicac, RA-1650 San Martin, Argentina
[5] Univ Nacl San Martin, CNEA, Inst Sabato, RA-1650 San Martin, Argentina
关键词
ferromagnets; layered materials; chromium; MAGNETIC-PROPERTIES; SUBSTITUTION; TE; SE;
D O I
10.1088/0953-8984/27/17/176002
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We have synthesized for the first time the metastable compound 1T-CrTe2. We have done its complete structural characterization and measured its magnetization, specific heat and electrical resistivity between 4 and 330 K. We have also performed detailed band structure calculations. We have found that it crystallizes in the CdI2 structure type and that its electrical resistance follows a metallic behaviour below room temperature. Its magnetization and specific heat curves show that the compound has a transition to a ferromagnetic state at T-C = 310 K, with the magnetic moments ordered parallel to the basal plane. From the specific heat measurements and the ferromagnetic solutions obtained from our DFT calculations, we conclude that the ferromagnetism is of itinerant nature.
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页数:6
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