Anomalous Hall effect in Fe/Gd bilayers

W. J. Xu, Bei Zhang, Z. X. Liu, Z. Wang, W. Li, Z. B. Wu, R. H. Yu, Xixiang Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

Non-monotonic dependence of anomalous Hall resistivity on temperature and magnetization, including a sign change, was observed in Fe/Gd bilayers. To understand the intriguing observations, we fabricated the Fe/Gd bilayers and single layers of Fe and Gd simultaneously. The temperature and field dependences of longitudinal resistivity, Hall resistivity and magnetization in these films have also been carefully measured. The analysis of these data reveals that these intriguing features are due to the opposite signs of Hall resistivity/or spin polarization and different Curie temperatures of Fe and Gd single-layer films. Copyright (C) EPLA, 2010
Original languageEnglish (US)
Pages (from-to)27004
JournalEPL (Europhysics Letters)
Volume90
Issue number2
DOIs
StatePublished - May 11 2010

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