Low-temperature properties of diluted magnetic semiconductors: Spin waves

2007 ◽  
Vol 76 (16) ◽  
Author(s):  
W. Jacak ◽  
J. Krasnyj ◽  
L. Jacak ◽  
S. D. Kaim
Keyword(s):  
Low Temperature ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Spin Waves ◽  
Diluted Magnetic

Preparation and Properties of Diluted Magnetic Semiconductors GaMnAs by Low-Temperature Molecular Epitaxy

2011 ◽  
Vol 28 (9) ◽  
pp. 097101 ◽  
Author(s):  
Chang-Jian Ji ◽  
Cheng-Qiang Zhang ◽  
Gang Zhao ◽  
Wen-Jing Wang ◽  
Gang Sun ◽  
...  
Keyword(s):  
Low Temperature ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Diluted Magnetic

Magnetization Study of Fe-Based II-VI Diluted Magnetic Semiconductors

1989 ◽  
Vol 161 ◽  
Author(s):  
W.J.M. De Jonge ◽  
H.J.M. Swagten ◽  
A. Twardowski
Keyword(s):  
Low Temperature ◽  
Exchange Interaction ◽  
High Field ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Critical Value ◽  
Nearest Neighbour ◽  
Magnetization Study ◽  
High Field Magnetization ◽  
Diluted Magnetic

ABSTRACTThe high field magnetization for Fe based Diluted Magnetic Semiconductors has been calculated. It is shown that the low temperature magnetization displays characteristic steps, related to the nearest neighbour exchange interaction JNN, provided that JNN exceeds a critical value.

Magnetic properties of Co-doped ZnO diluted magnetic semiconductors prepared by low-temperature mechanosynthesis

2006 ◽  
Vol 422 (4-6) ◽  
pp. 529-533 ◽  
Author(s):  
S. Colis ◽  
H. Bieber ◽  
S. Bégin-Colin ◽  
G. Schmerber ◽  
C. Leuvrey ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

DISORDER AND FRUSTRATION IN DILUTED MAGNETIC SEMICONDUCTORS AT LOW CARRIER DENSITIES

2005 ◽  
Vol 19 (01n03) ◽  
pp. 5-7
Author(s):  
R. N. BHATT ◽  
CHENGGANG ZHOU ◽  
MALCOLM KENNETT ◽  
MONA BERCIU ◽  
XIN WAN
Keyword(s):  
Low Temperature ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic State ◽  
Magnetic Semiconductors ◽  
Mean Field ◽  
Magnetic Behavior ◽  
Spin Orbit Coupling ◽  
Positional Disorder ◽  
Diluted Magnetic ◽  
Magnetic Ion

We examine the effects of positional disorder of the magnetic ion in III-V Diluted Magnetic Semiconductors such as ( Ga , Mn ) As at low carrier densities on the nature of the low-temperature ordered magnetic state, using numerical mean field and Monte Carlo methods. We find that positional disorder leads to a highly inhomogeneous ferromagnetic order in the low carrier density limit, with unusual thermodynamic and magnetic behavior. Spin-orbit coupling presented in the valence band leads to frustration in the hole-doped system, but does not significantly affect the low temperature magnetization.

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