April 8, 2024Physical review. B./Physical review. B

Engineering the in-plane anomalous Hall effect in Cd3As2 thin films

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WMWangqian MiaoUniversity of California, Santa Barbara BGBinghao GuoHebei Medical University SSSusanne StemmerUniversity of California, Santa Barbara

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Theoretical study reveals topological phase transitions in cadmium arsenide thin films, indicating pathways to realize quantized in-plane anomalous Hall effects.

Key Points

In-plane magnetic fields induce two topological phase transitions in cadmium arsenide films, realizing a two dimensional Weyl semimetal phase protected by crystalline symmetry.
Calculations using a four-band k-p model and first principles show that film thickness, growth direction, and Zeeman coupling strength serve as parameters driving phase shifts.
Breaking the emergent symmetry via trigonal warping or altered growth orientation enables quantized in-plane anomalous Hall effect plateaus in low-temperature clean limits.

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Miao et al. (2024) studied this question.

synapsesocial.com/papers/68e6fec0b6db64358767947e https://doi.org/10.1103/physrevb.109.155408

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Theoretical study reveals topological phase transitions in cadmium arsenide thin films, indicating pathways to realize quantized in-plane anomalous Hall effects.

Engineering the in-plane anomalous Hall effect in Cd3As2 thin films

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Cite This Study

Engineering the in-plane anomalous Hall effect in Cd3As2 thin films

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Implication

Key Points

Cite This Study

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