2024
DOI: 10.1063/5.0205498
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Anomalous Hall effect in 5d/5d SrTaO3/SrIrO3 superlattices driven by ferromagnetism and spin–orbit coupling

Xiaoyu Zhang,
Zhentao Pang,
Yi-Chi Li
et al.

Abstract: The observation of the anomalous Hall effect (AHE) in 5d perovskite oxides has been challenging due to their lack or weak ferromagnetic order, which is necessary for breaking time-reversal symmetry. Here, we present compelling evidence of ferromagnetism and consequent AHE in a series of carefully designed and fabricated 5d/5d SrTaO3/SrIrO3 (STO/SIO) superlattices. The coexistence of Ta5+ and Ta4+ chemical states induces ferromagnetism in the STO layer, while the interfacial magnetic proximity effect further en… Show more

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