Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic Semiconductors
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- 11 February 2000
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 287 (5455) , 1019-1022
- https://doi.org/10.1126/science.287.5455.1019
Abstract
Ferromagnetism in manganese compound semiconductors not only opens prospects for tailoring magnetic and spin-related phenomena in semiconductors with a precision specific to III-V compounds but also addresses a question about the origin of the magnetic interactions that lead to a Curie temperature ( T C ) as high as 110 K for a manganese concentration of just 5%. Zener's model of ferromagnetism, originally proposed for transition metals in 1950, can explain T C of Ga 1− x Mn x As and that of its II-VI counterpart Zn 1− x Mn x Te and is used to predict materials with T C exceeding room temperature, an important step toward semiconductor electronics that use both charge and spin.Keywords
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