Ferromagnetism in layered metastable 1T-CrTe2
Ferromagnetism in layered metastable 1T-CrTe2
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DOI：
10.1088/0953-8984/27/17/176002
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发表时间：
2015-05-08
影响因子：
2.7
通讯作者：
Nunez-Regueiro, Manuel
中科院分区：
文献类型：
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作者：
Freitas, Daniele C.;Weht, Ruben;Nunez-Regueiro, Manuel
我们首次合成了亚稳态化合物1T-CrTe2。我们对其进行了完整的结构表征，在4~330K范围内测量了其磁化强度、比热和电阻率，并进行了详细的能带结构计算。我们发现它以CdI2结构类型结晶，其电阻在室温以下遵循金属行为。它的磁化强度和比热曲线表明，该化合物在T-C=310K时发生了铁磁性转变，其磁矩与基面平行。根据比热测量和DFT计算得到的铁磁解，我们得出结论，铁磁性是巡游性质的。
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.