A story of high-temperature ferromagnetism in semiconductors

Details A story of high-temperature ferromagnetism in semiconductors A story of high-temperature ferromagnetism in semiconductors

2011-01-10

arxiv.org/abs/1101.1981v1

Chem. Soc. Rev. 39 (2010) 528-539, Reproduced by permission of The Royal Society of Chemistry

Physics

Condensed Matter

Materials Science

12 pages, 11 figures, tutorial review

Scientific paper

10.1039/B905352M

The comprehensive search for multifunctional materials has resulted in the discovery of semiconductors and oxides showing ferromagnetic features persisting to room temperature. In this tutorial review the methods of synthesis of these materials, as well as the application of element-specific nano-analytic tools, particularly involving synchrotron radiation and electron microscopy, are described and shown to reveal the presence of nano-scale phase separations. Various means to control the aggregation of magnetic cations are discussed together with the mechanisms accounting for ferromagnetism of either condensed or diluted magnetic semiconductors. Finally, the question of whether high temperature ferromagnetism is possible in semiconductors not containing magnetic ions is touched upon.

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