Zhao, T. ; Shinde, S. R. ; Ogale, S. B. ; Zheng, H. ; Venkatesan, T. ; Ramesh, R. ; Sarma, S. Das (2005) Electric field effect in diluted magnetic insulator anatase Co: TiO2 Physical Review Letters, 94 (12). 126601_1-126601_4. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v94/i12/e126601
Related URL: http://dx.doi.org/10.1103/PhysRevLett.94.126601
Abstract
An external electric field induced reversible modulation of a room temperature magnetic moment and coercive field is achieved in an epitaxial and insulating thin film of dilutely cobalt-doped anatase TiO2. This first demonstration of an electric field effect in any oxide-based diluted ferromagnet is realized in a high quality epitaxial heterostructure of PbZr0.2Ti0.8O3/Co: TiO2/SrRuO3 grown on (001) LaAlO3. The observed effect, which is about 15% in strength in a given heterostructure, can be modulated over several cycles. Possible mechanisms for electric field induced modulation of insulating ferromagnetism are discussed.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 26845 |
| Deposited On: | 08 Dec 2010 13:05 |
| Last Modified: | 17 May 2016 10:08 |
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