Title of article
Magnetic properties of a new spintronic material—GaN:Fe
Author/Authors
Przybyli?ska، نويسنده , , H. and Bonanni، نويسنده , , A. and Wolos، نويسنده , , A. and Kiecana، نويسنده , , M. and Sawicki، نويسنده , , Michelle M. and Dietl، نويسنده , , T. and Malissa، نويسنده , , H. and Simbrunner، نويسنده , , C. and Wegscheider، نويسنده , , M. and Sitter، نويسنده , , H. and Rumpf، نويسنده , , K. and Granitzer، نويسنده , , P. and Krenn، نويسنده , , H. and Jantsch، نويسنده , , W.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
4
From page
222
To page
225
Abstract
We report on metal-organic chemical vapour deposition growth of GaN:Fe and its characterization by means of high-resolution X-ray diffraction, secondary ion mass spectroscopy, electron spin resonance, and magnetization measurements. Electron spin resonance studies demonstrate the existence of Fe in the isolated 3d5 (Fe3+) state. Magnetic measurements reveal, apart from Curie paramagnetism due to Fe3+, a temperature independent contribution which we attribute tentatively to van Vleck paramagnetism of Fe in the 2+ state. We conclude that the Fe ions coexist in two charge states in the investigated samples. The fraction of Fe3+ ions was found to increase upon additional co-doping with Mg acceptors, both in ESR as well as in magnetization measurements.
Keywords
Spintronic material , Metal-organic chemical vapour deposition , GaN:Fe
Journal title
MATERIALS SCIENCE & ENGINEERING: B
Serial Year
2006
Journal title
MATERIALS SCIENCE & ENGINEERING: B
Record number
2143625
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