Journal
APPLIED PHYSICS EXPRESS
Volume 5, Issue 6, Pages -Publisher
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/APEX.5.063007
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- PRESTO of JST
- Japan Society for the Promotion of Science (JSPS)
- Grants-in-Aid for Scientific Research [23684031] Funding Source: KAKEN
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We show the effect of an applied electric field on the magnetization of an Fe ultrathin film. An electric double layer was formed at the interface between an ionic liquid and the Fe layer by the accumulation of ions caused by applying a gate voltage, and a large electric field was exerted on the Fe film surface. The saturation magnetization increased when the electron density at the Fe surface increased. A change in the saturation magnetization of similar to 50% was observed by applying a gate voltage of +/- 2 V. (C) 2012 The Japan Society of Applied Physics
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