First-principles prediction of half-metallic ferromagnetism in five transition-metal chalcogenides: The case of rocksalt structure
First-principles prediction of half-metallic ferromagnetism in five transition-metal chalcogenides: The case of rocksalt structure
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五种过渡金属硫属化物中半金属铁磁性的第一性原理预测:以岩盐结构为例
DOI:
10.1063/1.4724339
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发表时间:
2012-06
影响因子:
3.2
通讯作者:
Yao, Kai-Lun
中科院分区:
文献类型:
--
作者:
Gao, G. Y.;Yao, Kai-Lun
Motivated by the experimental synthesis of bulk rocksalt MnS, MnSe, and MnTe, we show with first-principles calculations that among all transition-metal pnictides and chalcogenides with rocksalt structure CrTe, VPo, and CrPo are truly half-metallic ferromagnets, and both VTe and CrSe exhibit nearly half-metallicity. Importantly, for these five half-metallic compounds, the rocksalt phase is energetically more stable than the zinc-blende and wurtzite ones, and the total energy differences between the rocksalt and ground-state NiAs phases are very small (0.06-0.43 eV/f.u.) and comparable with that of experimental MnTe (0.24 eV/f.u.), thus like rocksalt manganese chalcogenides, these five rocksalt half-metals would be realized in the form of bulk or at list thin films for spintronic applications. In addition, we study the (111) surface properties of rocksalt CrPo and find both Cr- and Po-terminated (111) surfaces retain the bulk half-metallicity. We also reveal that the spin-orbit coupling has very weak effec...
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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:
3.7
作者:
J. Kübler
通讯作者:
J. Kübler
DOI:
10.1088/0022-3727/41/4/045002
发表时间:
2008-02
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
作者:
J. Bi;M. Sreenivasan;K. Teo;T. Liew
通讯作者:
J. Bi;M. Sreenivasan;K. Teo;T. Liew