Exploration of oxide-based diluted magnetic semiconductors toward transparent spintronics

Abstract

A review is given for the recent progress of research in the field of oxide-based diluted magnetic semiconductor (DMS), which was triggered by combinatorial discovery of transparent ferromagnet. The possible advantages of oxide semiconductor as a host of DMS are described in comparison with conventional compound semiconductors. Limits and problems for identifying novel ferromagnetic DMS are described in view of recent reports in this field. Several characterization techniques are proposed in order to eliminate unidentified ferromagnetism of oxide-based DMS (UFO). Perspectives and possible devices are also given.

10pages, 3 table, 1 figure

References in corpus (2)

• A key to room-temperature ferromagnetism in Fe-doped ZnO: Cu
• Formation of Co nanoclusters in epitaxial Ti_{0.96} Co_{0.04} O_2 thin films and their ferromagnetism

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• The role of transition metal impurities and oxygen vacancies in the formation of ferromagnetism in Co-doped TiO2
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• Identification of point defects on Co-Ni co-doping in SnO${}_2$ nanocrystals and their effect on the structural and optical properties
• Valency Configuration of Transition Metal Impurities in ZnO