Electronic structure and half-metallic property of Mn-doped beta-SiC diluted magnetic semiconductor
- Authors
- Kim, Yoon-Suk; Chung, Yong Chae; Yi, Sung-Chul
- Issue Date
- Jan-2006
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- diluted magnetic semiconductors; beta-SiC; half-metal; density functional theory; electronic structure
- Citation
- MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, v.126, no.2-3, pp.194 - 196
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
- Volume
- 126
- Number
- 2-3
- Start Page
- 194
- End Page
- 196
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181889
- DOI
- 10.1016/j.mseb.2005.09.022
- ISSN
- 0921-5107
- Abstract
- Using ab initio ultrasoft pseudopotential plane wave method, the effect of doping concentration of Mn on the magnetic properties of beta-SiC (SiC:Mn) was quantitatively investigated. It is found that the SiC:Mn shows stable ferromagnetism, and the total magnetic moment of SiC:Mn depends on the substitution site of Mn in the SiC lattice. Using the density of states calculation, it is shown that SiC:Mn has half-metallic properties for selected doping concentrations of 1.56, 3.13 and 6.25%, irrespective of substitution site. The conduction electron mobility of SiC:Mn-C was expected to be higher than that of SiC:Mn-Si. On the contrary, SiC:Mn-Si has a wider spin band gap compared to SiC:Mn-C. It is predicted that SiC with 12.5% Mn doping represents desirable characteristics for realizing spintronic devices, which include stable ferromagnetism, half-metallic properties, fast electron mobility and a wide spin band gap.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 신소재공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181889)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.