Magnetic Properties and Electronic Structure of Cr-Diffused SiC

Author

Yoon-suk Kim ; Sung-Ho Lee ; Yong-Chae Chung

Author_Institution

Dept. of Mater. Sci. & Eng., Hanyang Univ., Seoul

Volume

42

Issue

10

fYear

2006

Firstpage

2709

Lastpage

2711

Abstract

The magnetic and electronic properties of chromium-diffused beta-SiC(100) was investigated using the ab initio pseudopotential plane wave method. It is found that the Cr-adsorbed SiC(100)-p(2times1) system shows a half-metallic property and represents stable ferromagnetism with 4 mu_B magnetic moments. On the contrary, a half-metallic property could not be found for SiC(100):Cr-c(4times2) and -c(2times2) systems due to the surface electronic states of SiC(100)

Keywords

chromium; dilute magnetic materials; ferromagnetism; magnetic semiconductors; magnetoelectronics; silicon compounds; wide band gap semiconductors; Cr; SiC; diluted magnetic semiconductors; electronic structure; energetic stability; ferromagnetism; half-metallic property; magnetic properties; pseudopotential plane wave method; surface electronic states; surface formation energy; Chromium; Magnetic devices; Magnetic moments; Magnetic properties; Magnetic semiconductors; Magnetoelectronics; Silicon carbide; Slabs; Stability; Surface reconstruction; diluted magnetic semiconductors (DMS); electronic structure; energetic stability; surface formation energy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.878848

Filename

1704413