Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5
Abstract The kagome metals AV3Sb5 (A = K, Rb, Cs) present an ideal sandbox to study the interrelation between multiple coexisting correlated phases such as charge order and superconductivity. So far, no consensus on the microscopic nature of these states has been reached as the proposals struggle to...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-024-00629-3 |
| _version_ | 1797276003352969216 |
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| author | Chunyu Guo Maarten R. van Delft Martin Gutierrez-Amigo Dong Chen Carsten Putzke Glenn Wagner Mark H. Fischer Titus Neupert Ion Errea Maia G. Vergniory Steffen Wiedmann Claudia Felser Philip J. W. Moll |
| author_facet | Chunyu Guo Maarten R. van Delft Martin Gutierrez-Amigo Dong Chen Carsten Putzke Glenn Wagner Mark H. Fischer Titus Neupert Ion Errea Maia G. Vergniory Steffen Wiedmann Claudia Felser Philip J. W. Moll |
| author_sort | Chunyu Guo |
| collection | DOAJ |
| description | Abstract The kagome metals AV3Sb5 (A = K, Rb, Cs) present an ideal sandbox to study the interrelation between multiple coexisting correlated phases such as charge order and superconductivity. So far, no consensus on the microscopic nature of these states has been reached as the proposals struggle to explain all their exotic physical properties. Among these, field-switchable electric magneto-chiral anisotropy (eMChA) in CsV3Sb5 provides intriguing evidence for a rewindable electronic chirality, yet the other family members have not been likewise investigated. Here, we present a comparative study of magneto-chiral transport between CsV3Sb5 and KV3Sb5. Despite their similar electronic structure, KV3Sb5 displays negligible eMChA, if any, and with no field switchability. This is in stark contrast to the non-saturating eMChA in CsV3Sb5 even in high fields up to 35 T. In light of their similar band structures, the stark difference in eMChA suggests its origin in the correlated states. Clearly, the V kagome nets alone are not sufficient to describe the physics and the interactions with their environment are crucial in determining the nature of their low-temperature state. |
| first_indexed | 2024-03-07T15:22:05Z |
| format | Article |
| id | doaj.art-9969736f07884a3786928b483c0bc252 |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-03-07T15:22:05Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-9969736f07884a3786928b483c0bc2522024-03-05T17:36:10ZengNature Portfolionpj Quantum Materials2397-46482024-02-01911610.1038/s41535-024-00629-3Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5Chunyu Guo0Maarten R. van Delft1Martin Gutierrez-Amigo2Dong Chen3Carsten Putzke4Glenn Wagner5Mark H. Fischer6Titus Neupert7Ion Errea8Maia G. Vergniory9Steffen Wiedmann10Claudia Felser11Philip J. W. Moll12Max Planck Institute for the Structure and Dynamics of MatterHigh Field Magnet Laboratory (HFML—EMFL), Radboud UniversityCentro de Física de Materiales (CSIC-UPV/EHU)Max Planck Institute for Chemical Physics of SolidsMax Planck Institute for the Structure and Dynamics of MatterDepartment of Physics, University of ZürichDepartment of Physics, University of ZürichDepartment of Physics, University of ZürichCentro de Física de Materiales (CSIC-UPV/EHU)Donostia International Physics CenterHigh Field Magnet Laboratory (HFML—EMFL), Radboud UniversityMax Planck Institute for Chemical Physics of SolidsMax Planck Institute for the Structure and Dynamics of MatterAbstract The kagome metals AV3Sb5 (A = K, Rb, Cs) present an ideal sandbox to study the interrelation between multiple coexisting correlated phases such as charge order and superconductivity. So far, no consensus on the microscopic nature of these states has been reached as the proposals struggle to explain all their exotic physical properties. Among these, field-switchable electric magneto-chiral anisotropy (eMChA) in CsV3Sb5 provides intriguing evidence for a rewindable electronic chirality, yet the other family members have not been likewise investigated. Here, we present a comparative study of magneto-chiral transport between CsV3Sb5 and KV3Sb5. Despite their similar electronic structure, KV3Sb5 displays negligible eMChA, if any, and with no field switchability. This is in stark contrast to the non-saturating eMChA in CsV3Sb5 even in high fields up to 35 T. In light of their similar band structures, the stark difference in eMChA suggests its origin in the correlated states. Clearly, the V kagome nets alone are not sufficient to describe the physics and the interactions with their environment are crucial in determining the nature of their low-temperature state.https://doi.org/10.1038/s41535-024-00629-3 |
| spellingShingle | Chunyu Guo Maarten R. van Delft Martin Gutierrez-Amigo Dong Chen Carsten Putzke Glenn Wagner Mark H. Fischer Titus Neupert Ion Errea Maia G. Vergniory Steffen Wiedmann Claudia Felser Philip J. W. Moll Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5 npj Quantum Materials |
| title | Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5 |
| title_full | Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5 |
| title_fullStr | Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5 |
| title_full_unstemmed | Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5 |
| title_short | Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5 |
| title_sort | distinct switching of chiral transport in the kagome metals kv3sb5 and csv3sb5 |
| url | https://doi.org/10.1038/s41535-024-00629-3 |
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