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