High Temperature Ferromagnetism with Giant Magnetic Moment in Transparent Co-doped SnO2-d

arxiv: cond-mat/0301456 · v1 · submitted 2003-01-23 · ❄️ cond-mat

High Temperature Ferromagnetism with Giant Magnetic Moment in Transparent Co-doped SnO2-d

S. B. Ogale , R. J. Choudhary , J. P. Buban , S. E. Lofland , S. R. Shinde , S. N. Kale , V. N. Kulkarni , J. Higgins

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C. Lanci J. R. Simpson N. D. Browning S. Das Sarma H. D. Drew R. L. Greene T. Venkatesan

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keywords ferromagnetismfilmsmagnetictemperaturegiantmomenttransparentbohr-magneton

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Occurrence of room temperature ferromagnetism is demonstrated in pulsed laser deposited thin films of Sn1-xCoxO2-d (x<0.3). Interestingly, films of Sn0.95Co0.05O2-d grown on R-plane sapphire not only exhibit ferromagnetism with a Curie temperature close to 650 K, but also a giant magnetic moment of about 7 Bohr-Magneton/Co, not yet reported in any diluted magnetic semiconductor system. The films are semiconducting and optically highly transparent.

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High Temperature Ferromagnetism with Giant Magnetic Moment in Transparent Co-doped SnO2-d

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