期刊
PHYSICAL REVIEW LETTERS
卷 111, 期 21, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.216803
关键词
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资金
- Strategic International Collaborative Research Program (SICORP)
- Japan Science and Technology Agency (JST)
- JPSP [21224009, 24226002]
- JSPS [25000003]
- RIKEN through the Incentive Research Grant
- Grants-in-Aid for Scientific Research [25000003] Funding Source: KAKEN
Pt is often considered to be an exchange-enhanced paramagnetic material, in which the Stoner criterion for ferromagnetism is nearly satisfied and, thus, external stimuli may induce unconventional magnetic characteristics. We report that a nonmagnetic perturbation in the form of a gate voltage applied via an ionic liquid induces an anomalous Hall effect (AHE) in Pt thin films, which resembles the AHE induced by the contact to Bi-doped yttrium iron garnet. Analysis of detailed temperature and magnetic field experiments indicates that the evolution of the AHE with temperature can be explained in terms of large local moments; the applied electric field induces magnetic moments as large as similar to 10 mu(B) that follow the Langevin function.
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