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

Ganz, P. R. 1; Fischer, Gerda 2; Sürgers, Christoph 1,2; Schaadt, D. M. 1
1 Center for Functional Nanostructures (CFN), Karlsruher Institut für Technologie (KIT)
2 Physikalisches Institut (PHI), Karlsruher Institut für Technologie (KIT)


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.

DOI: 10.1016/j.jcrysgro.2010.10.115
Zitationen: 8
Web of Science
Zitationen: 6
Zitationen: 7
Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2011
Sprache Englisch
Identifikator ISSN: 0022-0248
KITopen-ID: 1000050402
Erschienen in Journal of Crystal Growth
Verlag Elsevier
Band 323
Heft 1
Seiten 355-358
Nachgewiesen in Dimensions
Web of Science
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