Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi
Abstract The interest in the rare-earth monopnictides was boosted after the discovery of unconventional surface-state pairs in antiferromagnetically ordered NdBi. In contrast to other materials in which such states were reported, CeBi is known to have multiple antiferromagnetic phases. In this study...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-024-00692-0 |
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| _version_ | 1850196099578462208 |
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| author | Yevhen Kushnirenko Brinda Kuthanazhi Benjamin Schrunk Evan O’Leary Andrew Eaton Robert-Jan Slager Junyeong Ahn Lin-Lin Wang Paul C. Canfield Adam Kaminski |
| author_facet | Yevhen Kushnirenko Brinda Kuthanazhi Benjamin Schrunk Evan O’Leary Andrew Eaton Robert-Jan Slager Junyeong Ahn Lin-Lin Wang Paul C. Canfield Adam Kaminski |
| author_sort | Yevhen Kushnirenko |
| collection | DOAJ |
| description | Abstract The interest in the rare-earth monopnictides was boosted after the discovery of unconventional surface-state pairs in antiferromagnetically ordered NdBi. In contrast to other materials in which such states were reported, CeBi is known to have multiple antiferromagnetic phases. In this study, we perform angle-resolved photoemission spectroscopy (ARPES) measurements in conjunction with density functional theory (DFT) calculations to investigate the evolution of the electronic structure of CeBi upon a series of antiferromagnetic (AFM) transitions. We find evidence for a new AFM transition in addition to two previously known from transport studies. We demonstrate the development of an additional Dirac state in the ( + − + − ) ordered phase and a transformation of unconventional surface-state pairs in the ( + + − − ) ordered phase. This revises the phase diagram of this intriguing material, where there are now three distinct AFM states below T N in zero magnetic field instead of two as it was previously thought. |
| format | Article |
| id | doaj-art-54ef00afdc2244aebef43cead7d89baa |
| institution | OA Journals |
| issn | 2662-4443 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-54ef00afdc2244aebef43cead7d89baa2025-08-20T02:13:32ZengNature PortfolioCommunications Materials2662-44432024-11-01511610.1038/s43246-024-00692-0Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBiYevhen Kushnirenko0Brinda Kuthanazhi1Benjamin Schrunk2Evan O’Leary3Andrew Eaton4Robert-Jan Slager5Junyeong Ahn6Lin-Lin Wang7Paul C. Canfield8Adam Kaminski9Division of Materials Science and Engineering, Ames National LaboratoryDivision of Materials Science and Engineering, Ames National LaboratoryDivision of Materials Science and Engineering, Ames National LaboratoryDivision of Materials Science and Engineering, Ames National LaboratoryDivision of Materials Science and Engineering, Ames National LaboratoryTCM Group, Cavendish Laboratory, University of CambridgeDepartment of Physics, Harvard UniversityDivision of Materials Science and Engineering, Ames National LaboratoryDivision of Materials Science and Engineering, Ames National LaboratoryDivision of Materials Science and Engineering, Ames National LaboratoryAbstract The interest in the rare-earth monopnictides was boosted after the discovery of unconventional surface-state pairs in antiferromagnetically ordered NdBi. In contrast to other materials in which such states were reported, CeBi is known to have multiple antiferromagnetic phases. In this study, we perform angle-resolved photoemission spectroscopy (ARPES) measurements in conjunction with density functional theory (DFT) calculations to investigate the evolution of the electronic structure of CeBi upon a series of antiferromagnetic (AFM) transitions. We find evidence for a new AFM transition in addition to two previously known from transport studies. We demonstrate the development of an additional Dirac state in the ( + − + − ) ordered phase and a transformation of unconventional surface-state pairs in the ( + + − − ) ordered phase. This revises the phase diagram of this intriguing material, where there are now three distinct AFM states below T N in zero magnetic field instead of two as it was previously thought.https://doi.org/10.1038/s43246-024-00692-0 |
| spellingShingle | Yevhen Kushnirenko Brinda Kuthanazhi Benjamin Schrunk Evan O’Leary Andrew Eaton Robert-Jan Slager Junyeong Ahn Lin-Lin Wang Paul C. Canfield Adam Kaminski Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi Communications Materials |
| title | Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi |
| title_full | Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi |
| title_fullStr | Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi |
| title_full_unstemmed | Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi |
| title_short | Unexpected band structure changes within the higher-temperature antiferromagnetic state of CeBi |
| title_sort | unexpected band structure changes within the higher temperature antiferromagnetic state of cebi |
| url | https://doi.org/10.1038/s43246-024-00692-0 |
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