Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear Spins
Abstract Recently, a new class of magnetic phenomenon, called altermagnetism, is proposed where the underlying spin configuration resembles antiferromagnetic structure, but the system violates PT (PT: Parity times Time reversal) symmetry due to the alternation of crystalline symmetry across magnetic...
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Wiley-VCH
2025-05-01
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| Series: | Advanced Physics Research |
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| Online Access: | https://doi.org/10.1002/apxr.202400170 |
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| author | Deepak K. Singh Sang‐Wook Cheong Jiasen Guo |
| author_facet | Deepak K. Singh Sang‐Wook Cheong Jiasen Guo |
| author_sort | Deepak K. Singh |
| collection | DOAJ |
| description | Abstract Recently, a new class of magnetic phenomenon, called altermagnetism, is proposed where the underlying spin configuration resembles antiferromagnetic structure, but the system violates PT (PT: Parity times Time reversal) symmetry due to the alternation of crystalline symmetry across magnetic ions. Although the original idea is proposed for the collinear spin structure, a recent report by Cheong et al. has suggested that antiferromagnetic materials with non‐collinear spin structure and local alternation of crystalline arrangement can also manifest altermagnetism. Besides breaking the PT symmetry, altermagnetic compounds are also expected to exhibit anomalous Hall effects of odd orders. Here, possible candidates are discussed in this regard. One example is nickel monosilicide, which is recently shown to exhibit high temperature antiferromagnetism with non‐collinear spin structure. It fulfills both criteria of breaking the PT symmetry and manifesting nonlinear anomalous Hall effect. In addition to NiSi, other potential antiferromagnetic materials are also discussed with non‐collinear spin configuration for the exploration of altermagnetic states. |
| format | Article |
| id | doaj-art-52f5084f36d142ef86ed33eb9245428f |
| institution | Kabale University |
| issn | 2751-1200 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Physics Research |
| spelling | doaj-art-52f5084f36d142ef86ed33eb9245428f2025-08-20T03:48:47ZengWiley-VCHAdvanced Physics Research2751-12002025-05-0145n/an/a10.1002/apxr.202400170Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear SpinsDeepak K. Singh0Sang‐Wook Cheong1Jiasen Guo2Department of Physics and Astronomy University of Missouri Columbia MO 65201 USADepartment of Physics and Astronomy, Rutgers The State University of New Jersey New Jersey NJ 08854 USAOak Ridge National Laboratory Oak Ridge TN 37830 USAAbstract Recently, a new class of magnetic phenomenon, called altermagnetism, is proposed where the underlying spin configuration resembles antiferromagnetic structure, but the system violates PT (PT: Parity times Time reversal) symmetry due to the alternation of crystalline symmetry across magnetic ions. Although the original idea is proposed for the collinear spin structure, a recent report by Cheong et al. has suggested that antiferromagnetic materials with non‐collinear spin structure and local alternation of crystalline arrangement can also manifest altermagnetism. Besides breaking the PT symmetry, altermagnetic compounds are also expected to exhibit anomalous Hall effects of odd orders. Here, possible candidates are discussed in this regard. One example is nickel monosilicide, which is recently shown to exhibit high temperature antiferromagnetism with non‐collinear spin structure. It fulfills both criteria of breaking the PT symmetry and manifesting nonlinear anomalous Hall effect. In addition to NiSi, other potential antiferromagnetic materials are also discussed with non‐collinear spin configuration for the exploration of altermagnetic states.https://doi.org/10.1002/apxr.202400170altermagnetismantiferromagnetic metalspintronicstransition metal intermetallics |
| spellingShingle | Deepak K. Singh Sang‐Wook Cheong Jiasen Guo Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear Spins Advanced Physics Research altermagnetism antiferromagnetic metal spintronics transition metal intermetallics |
| title | Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear Spins |
| title_full | Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear Spins |
| title_fullStr | Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear Spins |
| title_full_unstemmed | Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear Spins |
| title_short | Altermagnetism in NiSi and Antiferromagnetic Candidate Materials with Non‐Collinear Spins |
| title_sort | altermagnetism in nisi and antiferromagnetic candidate materials with non collinear spins |
| topic | altermagnetism antiferromagnetic metal spintronics transition metal intermetallics |
| url | https://doi.org/10.1002/apxr.202400170 |
| work_keys_str_mv | AT deepakksingh altermagnetisminnisiandantiferromagneticcandidatematerialswithnoncollinearspins AT sangwookcheong altermagnetisminnisiandantiferromagneticcandidatematerialswithnoncollinearspins AT jiasenguo altermagnetisminnisiandantiferromagneticcandidatematerialswithnoncollinearspins |