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Possible indication of interlayer exchange coupling in GaMnAs/GaAs ferromagnetic semiconductor superlattices
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- Chung, S. J. (author)
- Department of Physics, Korea University
- Lee, S. (author)
- Park, I. W. (author)
- show more...
- Liu, X. (author)
- Furdyna, J. K. (author)
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- (creator_code:org_t)
- AIP Publishing, 2004
- 2004
- English.
- In: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 95:11, s. 7402-7404
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The effects of free carriers in the nonmagnetic spacer layer on the magnetic properties of GaMnAs/GaAs ferromagnetic semiconductor superlattices (SL) were investigated. In the SL system, one of the SL structures was doped with Be in the GaAs spacer layers, and the GaAs layer of the other SL were undoped in order to investigate the effects of carriers. The remanent magnetization of the two SL were calculated in order to analyze the robustness of the SL systems. The hardness of the magnetization in the SL with Be-doped GaAs layer was found to be related to interlayer coupling which was introduced by doping of the nonmagnetic layers.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Free carriers
- Interlayer exchange coupling (IEC)
- Nonmagnetic spacer layers
- Remanent magnetization
- Annealing
- Carrier concentration
- Coercive force
- Ferromagnetic materials
- Light emitting diodes
- Magnetic field effects
- Magnetization
- Molecular beam epitaxy
- Remanence
- Semiconducting gallium arsenide
- Semiconductor doping
- SQUIDs
- Semiconductor superlattices
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Chung, S. J.
- Lee, S.
- Park, I. W.
- Liu, X.
- Furdyna, J. K.
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Condensed Matter ...
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- By the university
- Royal Institute of Technology
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