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Optical and magnetic properties of (Ga1-xMnx) N-based heterostructures
- Authors
- Jeon, Hee Chang; Kang, Tae Won; Kim, The Won
- Issue Date
- Sep-2006
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- (Ga1-xMnx)N/GaN-based heterostructures; optical properties; magnetic properties
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.49, no.3, pp.989 - 991
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 49
- Number
- 3
- Start Page
- 989
- End Page
- 991
- ISSN
- 0374-4884
- Abstract
- The optical and the magnetic properties of (Ga1-xMnx)N/GaN digital ferromagnetic heterostructures (DFHs) grown by using molecular beam epitaxy were investigated. The photoluminescence (PL) spectra showed band-edge exciton and exciton transitions between the conduction band and the Mn acceptor, indicative of the Mn atoms acting as substitutes, which corresponded to neutral donor-bound exciton for the GaMnN and GaN. The magnetization curves as functions of the magnetic field at 5 K indicated that the saturation magnetic moment in the (Ga1-xMnx)N/GaN DFHs decreased with increasing Mn mole fraction. The ferromagnetic properties of GaMnN/GaN DFHs were significantly affected by the hole concentration in the DFHs.
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