Magnetic and optical properties of Cr +-implanted GaN
In this paper, we report the fabrication of ferromagnetic semiconductor on GaN substrates by high-dose Cr ion implantation. Both magnetic and optical properties for Cr +-implanted GaN were studied by photoluminescence and superconducting quantum interference device. The results of photoluminescence...
Saved in:
Published in | Journal of crystal growth Vol. 275; no. 3; pp. 393 - 397 |
---|---|
Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
01.03.2005
Elsevier |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | In this paper, we report the fabrication of ferromagnetic semiconductor on GaN substrates by high-dose Cr ion implantation. Both magnetic and optical properties for Cr
+-implanted GaN were studied by photoluminescence and superconducting quantum interference device. The results of photoluminescence reveal that the implanted chromium incorporates substitutionally on Ga site and forms deep acceptor level in GaN. The materials show ferromagnetic-like order up to 300
K as indicated by temperature-dependent magnetization measurement. The
M
vs.
T
curve also implies the presence of different components to the magnetization in Cr
+-implanted GaN. |
---|---|
Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0022-0248 1873-5002 |
DOI: | 10.1016/j.jcrysgro.2004.12.005 |