Diverse electronic landscape of the kagome metal YbTi3Bi4
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866915389358735360 |
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| author | Sakhya, Anup Pradhan Ortiz, Brenden R. Ghosh, Barun Sprague, Milo Mondal, Mazharul Islam Matzelle, Matthew Elius, Iftakhar Bin Valadez, Nathan Mandrus, David G. Bansil, Arun Neupane, Madhab |
| author_facet | Sakhya, Anup Pradhan Ortiz, Brenden R. Ghosh, Barun Sprague, Milo Mondal, Mazharul Islam Matzelle, Matthew Elius, Iftakhar Bin Valadez, Nathan Mandrus, David G. Bansil, Arun Neupane, Madhab |
| contents | Kagome lattices have emerged as an ideal platform for exploring exotic quantum phenomena in materials. Here, we report the discovery of Ti-based kagome metal YbTi3Bi4 which we characterize using angle-resolved photoemission spectroscopy (ARPES) and magneto-transport, in combination with density functional theory calculations. Our ARPES results reveal the complex fermiology of YbTi3Bi4 and provide spectroscopic evidence of four flat bands. Our measurements also show the presence of multiple van Hove singularities originating from Ti 3d orbitals and a linearly-dispersing gapped Dirac-like bulk state at the K point in accord with our theoretical calculations. Our study establishes YbTi3Bi4 as a platform for exploring exotic phases in the wider LnTi3Bi4 (Ln= lanthanide) family of materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_01176 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Diverse electronic landscape of the kagome metal YbTi3Bi4 Sakhya, Anup Pradhan Ortiz, Brenden R. Ghosh, Barun Sprague, Milo Mondal, Mazharul Islam Matzelle, Matthew Elius, Iftakhar Bin Valadez, Nathan Mandrus, David G. Bansil, Arun Neupane, Madhab Mesoscale and Nanoscale Physics Materials Science Kagome lattices have emerged as an ideal platform for exploring exotic quantum phenomena in materials. Here, we report the discovery of Ti-based kagome metal YbTi3Bi4 which we characterize using angle-resolved photoemission spectroscopy (ARPES) and magneto-transport, in combination with density functional theory calculations. Our ARPES results reveal the complex fermiology of YbTi3Bi4 and provide spectroscopic evidence of four flat bands. Our measurements also show the presence of multiple van Hove singularities originating from Ti 3d orbitals and a linearly-dispersing gapped Dirac-like bulk state at the K point in accord with our theoretical calculations. Our study establishes YbTi3Bi4 as a platform for exploring exotic phases in the wider LnTi3Bi4 (Ln= lanthanide) family of materials. |
| title | Diverse electronic landscape of the kagome metal YbTi3Bi4 |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2309.01176 |