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

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

2003-01-23

arxiv.org/abs/cond-mat/0301456v1

Physics

Condensed Matter

12 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.91.077205

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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