DocumentCode :
2320514
Title :
(In/sub 1-x/Mn/sub x/)As diluted diluted magnetic semiconductor quantum dots with above room ferromagnetic transition temperature
Author :
Hee Chang Jeon ; Jeong, Youn Seok ; Chung, Kwang Jae ; Chung, Kwang Jo ; Kang, Tae Won ; Kim, Tae Whan ; Wanho Jhe ; Song, Se Ahn
Author_Institution :
Dongguk University
fYear :
2002
fDate :
15-20 Sept. 2002
Firstpage :
15
Lastpage :
16
Abstract :
we present a new type of (In/sub 1-x/Mn/sub x/)As DMS QD (quantum dot) which successfully grown by using MBE and whose Tc, was above room temperature. A high-resolution TEM image shows that the formed (In/sub 1-x/Mn/sub x/)As QDs are single crystals without defects, dislocations, or stacking faults, and this behavior is similar to the typical self-assembled III-V QDs. The average width of the (In/sub 1-x/Mn/sub x/)As QDs is approximately 60 nm. The EDX spectrum demonstrates that the stoichiomehy of the QDs is (In/sub 1-x/Mn/sub x/)As and that the ratio between the In and the Mn compositions is 84:16.
Keywords :
Atomic layer deposition; Gallium arsenide; Magnetic force microscopy; Magnetic semiconductors; Quantum dots; Substrates; Temperature;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Molecular Beam Epitaxy, 2002 International Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-7581-5
Type :
conf
DOI :
10.1109/MBE.2002.1037737
Filename :
1037737
Link To Document :
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