Surface Electronic States of 18 Valence Electron Half-Heusler Semiconductors

被引：5
|
作者：
Zhu, Zhiyong [1 ,2 ]
Wang, Hao [1 ,2 ]
Schwingenschloegl, Udo [1 ,2 ]
机构：
[1] Kingdom Saudi Arabia, PSE Div, KAUST, Thuwal, Saudi Arabia
[2] KAUST, PSE Div, Thuwal 239556900, Saudi Arabia
来源：
ADVANCED MATERIALS INTERFACES | 2015年 / 2卷 / 04期
关键词：
METALLIC FERROMAGNET; SPIN POLARIZATION; MAGNETISM;
D O I：
10.1002/admi.201400340
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The surface electronic states of the 18 valence electron half-Heusler semiconductors CoTiSb, CoNbSn and NiTiSn are investigated using ab initio calculations. The electronic structure is found to be dramatically modified by the change in the atomic environment as compared to the bulk. In contrast to the non-magnetic semiconducting nature of the bulk, 2D half-metallic or metallic states with strong spin polarization appear for specific surfaces. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页数：6
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