Dynamics of exciton-spin injection, transfer, and relaxation in self-assembled quantum dots of CdSe coupled with a diluted magnetic semiconductor layer ofZn0.80Mn0.20Se

2007 ◽  
Vol 75 (19) ◽  
Author(s):  
A. Murayama ◽  
T. Furuta ◽  
K. Hyomi ◽  
I. Souma ◽  
Y. Oka ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Diluted Magnetic Semiconductor ◽  
Spin Injection ◽  
Magnetic Semiconductor ◽  
Semiconductor Layer ◽  
Self Assembled ◽  
Diluted Magnetic

Spin dynamics in self-assembled quantum dots coupled with a diluted magnetic semiconductor

2006 ◽  
Vol 3 (12) ◽  
pp. 4287-4290
Author(s):  
T. Furuta ◽  
K. Hyomi ◽  
I. Souma ◽  
A. Murayama ◽  
Y. Oka
Keyword(s):  
Quantum Dots ◽  
Diluted Magnetic Semiconductor ◽  
Spin Dynamics ◽  
Magnetic Semiconductor ◽  
Self Assembled ◽  
Diluted Magnetic

Self-assembled (In1−xMnx)As diluted magnetic semiconductor quantum dots with high Tc

2004 ◽  
Vol 4 (2-4) ◽  
pp. 213-216 ◽  
Author(s):  
Hee Chang Jeon ◽  
Kwang Jo Chung ◽  
Kwang Jae Chung ◽  
Tae Won Kang ◽  
Tae Whan Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Semiconductor Quantum Dots ◽  
High Tc ◽  
Self Assembled ◽  
Diluted Magnetic

Tunable Ferromagnetism above Room-Temperature in Self-Assembled (In,Mn)As Diluted Magnetic Semiconductor Quantum Dots on Be-Doped AlxGa1-XAs Template by Molecular Beam Epitaxy

2012 ◽  
Vol 476-478 ◽  
pp. 793-798
Author(s):  
Hao Min Guo ◽  
Xin Hua Li ◽  
Zhi Fei Zhao ◽  
Yu Qi Wang
Keyword(s):  
Quantum Dots ◽  
Molecular Beam Epitaxy ◽  
Quantum Interference ◽  
Molecular Beam ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Spintronic Devices ◽  
Al Content ◽  
Self Assembled ◽  
Diluted Magnetic

With the introduction of Be-doped AlxGa1-xAs template, self-assembled In0.79Mn0.21As quantum dots samples were prepared on semi-insulating (001) GaAs substrates by molecular beam epitaxy. High quantum dots density was confirmed by the atomic force microscopy. The ferromagnetism of the samples was revealed by superconducting quantum interference device magnetometer analysis at 10K, and the Curie temperatures ranging from 292 to 314K were able to be regulated by adjusting Al content and Be dopant in Be-doped AlxGa1-xAs templates, implying the feasible application of spintronic devices.

scholarly journals InGaAs Quantum Dots on Cross-Hatch Patterns as a Host for Diluted Magnetic Semiconductor Medium

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Teeravat Limwongse ◽  
Supachok Thainoi ◽  
Somsak Panyakeow ◽  
Songphol Kanjanachuchai
Keyword(s):  
Quantum Dots ◽  
Molecular Beam ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Magnetic Medium ◽  
Magnetic Region ◽  
Diluted Magnetic ◽  
Mismatched Heteroepitaxy ◽  
Quantum Dimensions ◽  
Magnetic Quantum Dots

Storage density on magnetic medium is increasing at an exponential rate. The magnetic region that stores one bit of information is correspondingly decreasing in size and will ultimately reach quantum dimensions. Magnetic quantum dots (QDs) can be grown using semiconductor as a host and magnetic constituents added to give them magnetic properties. Our results show how molecular beam epitaxy and, particularly, lattice-mismatched heteroepitaxy can be used to form laterally aligned, high-density semiconducting host in a single growth run without any use of lithography or etching. Representative results of how semiconductor QD hosts arrange themselves on various stripes and cross-hatch patterns are reported.

Dynamics of localized Mn spins in diluted-magnetic-semiconductor nanostructures with quantum dots

2004 ◽  
Vol 241 (2) ◽  
pp. 361-369 ◽  
Author(s):  
A. V. Scherbakov ◽  
A. V. Akimov ◽  
D. R. Yakovlev ◽  
W. Ossau ◽  
L. W. Molenkamp ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Semiconductor Nanostructures ◽  
Diluted Magnetic
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