Stability and half-metallicity of the (001) and (111) surfaces of CrTe with rocksalt structure
Stability and half-metallicity of the (001) and (111) surfaces of CrTe with rocksalt structure
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岩盐结构CrTe(001)和(111)表面的稳定性和半金属性
DOI:
10.1063/1.4767232
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发表时间:
2012-11
影响因子:
3.2
通讯作者:
Yao, K.L.
中科院分区:
文献类型:
--
作者:
Gao, G.Y.;Yao, Wei;Han, H.P.;Al-zyadi, J. M. Khalaf;Yao, K.L.
We extend the recent study on above-room-temperature half-metallic ferromagnetism in bulk rocksalt CrTe [Y. Liu, S. K. Bose, and J. J. Kudrnovský, Phys. Rev. B 82, 094435 (2010)] to the (001) and (111) surfaces by using the first-principles calculations. We show that the Te-terminated (111) surface is energetically more stable than both the (001) and the Cr-terminated (111) surfaces over the whole effective Cr chemical potential, and the surface stability of the Te-terminated (111) surface of rocksalt CrTe is comparable with that of the Te-terminated (001) surface of experimental zinc-blende CrTe. In addition, both the (001) and (111) surfaces of rocksalt CrTe retain the bulk half-metallicity. The atomic magnetic moments at the (111) surfaces are greatly different from those in the bulk rocksalt CrTe due to the breakdown of Cr-Te bond at the (111) surface, but the differences are very small for the case of the (001) surface due to the existence of Cr-Te bond at the (001) surface. These results indicate that it is feasible to fabricate the half-metallic CrTe thin films with rocksalt structure other than zinc-blende one.
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影响因子:
3.2
作者:
Gao, G. Y.;Yao, Kai-Lun
通讯作者:
Yao, Kai-Lun
影响因子:
4
作者:
J. Zhao;F. Matsukura;K. Takamura;E. Abe;D. Chiba;H. Ohno
通讯作者:
J. Zhao;F. Matsukura;K. Takamura;E. Abe;D. Chiba;H. Ohno
影响因子:
3.9
作者:
C. Leung;L. H. Vlack
通讯作者:
C. Leung;L. H. Vlack
DOI:
10.1088/0953-8984/17/25/018
发表时间:
2005-03
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
E. Şaşıoğlu;I. Galanakis;L. Sandratskii;P. Bruno
通讯作者:
E. Şaşıoğlu;I. Galanakis;L. Sandratskii;P. Bruno
影响因子:
1.8
作者:
H. Oomae;J. Asubar;Shin‐ichi Nakamura;Y. Jinbo;N. Uchitomi
通讯作者:
H. Oomae;J. Asubar;Shin‐ichi Nakamura;Y. Jinbo;N. Uchitomi