Distortion of electronic structure in HfO2 induced by the out-diffused As from GaAs substrate
Distortion of electronic structure in HfO2 induced by the out-diffused As from GaAs substrate
复制标题
GaAs 衬底外扩散 As 引起 HfO2 电子结构畸变
DOI:
10.1063/1.4804059
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发表时间:
2013-05
影响因子:
3.2
通讯作者:
Zhang, David Wei
中科院分区:
文献类型:
--
作者:
Lu, Hong-Liang;Wang, Peng-Fei;Ding, Shi-Jin;Zhang, David Wei
The out diffusion of As is considered as one of the key issues of GaAs-based devices. We performed first-principles calculation to study the electronic structure distortion of HfO2 induced by out-diffused As. As diffused into oxygen vacancy of HfO2 results in several gap states ranging from 1.38 eV to 2.33 eV above HfO2 valence band maximum through As 4p and Hf 5d interaction; on the other hand, interstitial As not only introduces two gap states but also donates one electron to the conduction band of HfO2. These findings provide an interpretation for the degraded electrical performance of dielectrics on GaAs.
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影响因子:
3.7
作者:
Kresse, G;Furthmuller, J
通讯作者:
Furthmuller, J
影响因子:
3.1
作者:
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DOI:
10.1016/j.mseb.2006.08.018
发表时间:
2006-12-15
期刊:
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
影响因子:
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作者:
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影响因子:
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作者:
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影响因子:
4
作者:
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通讯作者:
Hongliang Lu;Liang Sun;S. Ding;Min Xu;David-Wei Zhang;Li-Kang Wang