Ferromagnetism above room temperature in bulk and transparent thin films of Mn-doped ZnO

The search for ferromagnetism above room temperature in dilute magnetic semiconductors has been intense in recent years. We report the first observations of ferromagnetism above room temperature for dilute ( 700 °C) methods were used, samples were found to exhibit clustering and were not ferromagnet...

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Veröffentlicht in:	Nature materials 2003-10, Vol.2 (10), p.673-677
Hauptverfasser:	Sharma, Parmanand, Gupta, Amita, Rao, K. V., Owens, Frank J., Sharma, Renu, Ahuja, Rajeev, Guillen, J. M. Osorio, Johansson, Börje, Gehring, G. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biomaterials Chemistry and Materials Science Condensed Matter Physics energy High temperature Low temperature magnetic-properties Materials Science Nanotechnology Optical and Electronic Materials Sample preparation semiconductors Thin films
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Beschreibung
Zusammenfassung:	The search for ferromagnetism above room temperature in dilute magnetic semiconductors has been intense in recent years. We report the first observations of ferromagnetism above room temperature for dilute ( 700 °C) methods were used, samples were found to exhibit clustering and were not ferromagnetic at room temperature. This capability to fabricate ferromagnetic Mn-doped ZnO semiconductors promises new spintronic devices as well as magneto-optic components.
ISSN:	1476-1122 1476-4660 1476-4660
DOI:	10.1038/nmat984