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Trends in ferromagn...
Trends in ferromagnetism in Mn-doped dilute III-V alloys from a density functional perspective
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Cherian, R. (författare)
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Mahadevan, P. (författare)
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- Persson, Clas (författare)
- KTH,Materialvetenskap
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 79:19
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Mn doping in dilute III-V alloys has been examined as a route to enhance ferromagnetic stability. Strong valence-band bowing is expected at the dilute limit, implying a strong modification of the ferromagnetic stability upon alloying with even an increase in some cases. Using first-principles electronic structure calculations we show that while codoping with a group V anion enhances the ferromagnetic stability in some cases when the effects of relaxation of the lattice are not considered, strong impurity scattering in the relaxed structure result in a reduction in the ferromagnetic stability.
Nyckelord
- density functional theory
- doping profiles
- ferromagnetic relaxation
- gallium arsenide
- III-V semiconductors
- manganese
- semiconductor
- doping
- semimagnetic semiconductors
- valence bands
- total-energy calculations
- wave basis-set
- temperature ferromagnetism
- semiconductors
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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