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Study Of Photoinduced Ferromagnetism

In Diluted Magnetic Semiconductor (Ga,Mn)As

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Effects of photo-excitation and spin wave scattering on magnetism of the diluted magnetic semiconductor (DMS) (Ga,Mn)As is theoretically studied. The exchange coupling energy between Mn+2 spins local moments is computed starting with the zeeman energy. Its equivalence with the Rudermann-Kittel-Kasuya-Yosida (RKKY) exchange energy which is known to have an oscillatory characteristics and contributing to an indirect exchange, expressed based on the Zener model is described. This energy is shown to rise to maximum near/at resonance. Green function formalism is used to find expression for ferromagnetic transition temperature TC, magnetization a… Mehr

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Produktdetails


Weitere Autoren: Singh, P.
  • ISBN: 978-3-8473-3583-2
  • EAN: 9783847335832
  • Produktnummer: 37733012
  • Verlag: LAP Lambert Academic Publishing
  • Sprache: Englisch
  • Erscheinungsjahr: 2013
  • Seitenangabe: 144 S.
  • Masse: H22.0 cm x B15.0 cm x D0.9 cm 233 g
  • Abbildungen: Paperback
  • Gewicht: 233

Über den Autor


Studied Physics and got BSc in 1988, MSc in 2005, and PhD in 2010 from Science Faculty, Addis Ababa University. My research interest is on diluted magnetic semiconductors, spintronics. Currently I am working at Addis Ababa Science and Technology University in the position of Assistant Professor and Director of Interdisciplinary Programs.

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