Material design of half-metallic zinc-blende CrAs and the synthesis by molecular-beam epitaxy
Material design of half-metallic zinc-blende CrAs and the synthesis by molecular-beam epitaxy
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DOI：
10.1143/jjap.39.l1118
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发表时间：
2000-11-15
期刊：
影响因子：
--
通讯作者：
Shirai, M
中科院分区：
文献类型：
--
作者：
Akinaga, H;Manago, T;Shirai, M
在锌-铌晶体结构中发现了一类新的半金属铁磁体。利用分子束外延技术在GaAs（001）衬底上制备了锌掺杂CrAs薄膜，并在室温下表现出铁磁特性。采用基于局域自旋密度近似的从头计算方法设计了Zn-CrAs纳米结构，计算结果预测了高自旋极化的能带结构.
A new class of half-metallic ferromagnets has been found in the zinc-blende crystal structure. The previously nonexistent zinc-blende CrAs thin films have been synthesized on GaAs (001) substrates by molecular-beam epitaxy, and show a ferromagnetic behavior at room temperature. The zinc-blende CrAs has been designed by ab initio calculations based on the local spin-density approximation, and the calculation predicts the highly spin-polarized electronic band structure.