Direction‐Dependent Conduction Polarity in Altermagnetic CrSb
Abstract CrSb has recently gained immense attention as an altermagnetic candidate. This work reports on the experimental observation of direction‐dependent conduction polarity (DDCP) in altermagnetic CrSb through Hall and Seebeck thermopower measurements. Conduction is dominated by holes along the c...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-07-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202502226 |
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| Summary: | Abstract CrSb has recently gained immense attention as an altermagnetic candidate. This work reports on the experimental observation of direction‐dependent conduction polarity (DDCP) in altermagnetic CrSb through Hall and Seebeck thermopower measurements. Conduction is dominated by holes along the c‐axis and by electrons in the ab‐plane of the hexagonal crystal of CrSb. Density functional theory (DFT) calculations indicate that DDCP in CrSb arises from a multicarrier mechanism, where electrons and holes living in distinct bands dominate conduction along different crystallographic directions. Furthermore, DFT predicts that DDCP exists within a narrow energy window near the Fermi level and is sensitive to small doping levels. This prediction is experimentally validated by the loss of DDCP in hole‐doped Cr0.98V0.02Sb. These findings highlight the potential for tunable electronic behavior in CrSb, offering promising avenues for applications in devices that require both p‐type and n‐type functionalities within a single material. |
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| ISSN: | 2198-3844 |