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Cu-doped nitrides: Promising candidates for a nitride based spin-aligner

Ganz, P.R.; Fischer, Gerda; Sürgers, Christoph; Schaadt, D.M.

Abstract:
A spin-aligner that shows ferromagnetism at room temperature is indispensable for spintronic applications. Diluted magnetic semiconductors are prospective candidates for a spin-aligner. We show that Cu-doped group-III nitrides show ferromagnetic behavior at room temperature although Cu is an intrinsic non-magnetic material. Problems with the building of magnetic secondary phases like in Mn- or Gd-doped nitrides are avoided by using Cu. The formation of Cu-group-III metal compounds is observed. However, these compounds will not affect the ferromagnetic properties and 90% of them can be removed by etching with HNO3 for 5 min.


Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2011
Sprache Englisch
Identifikator DOI: 10.1016/j.jcrysgro.2010.10.115
ISSN: 0022-0248
KITopen ID: 1000050402
Erschienen in Journal of Crystal Growth
Band 323
Heft 1
Seiten 355-358
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