title: Electrically tunable anomalous Hall effect in Pt thin films.
abstract: 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 ~10 μ(B) that follow the Langevin function.
authors: RIKEN Center for Emergent Matter Science, Wako, Saitama 351-0198, Japan.
authors: Sunao
authors: S
authors: Shimizu
authors: Kei S
authors: KS
authors: Takahashi
authors: Takafumi
authors: T
authors: Hatano
authors: Masashi
authors: M
authors: Kawasaki
authors: Yoshinori
authors: Y
authors: Tokura
authors: Yoshihiro
authors: Y
authors: Iwasa