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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2510.05401 |
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| _version_ | 1866911195368259584 |
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| author | Gao, Yuxiang Allen, Kevin Mustaf, Rose Albu Zhang, Yichen Mishra, Sanu Lane, Christopher Zonno, Marta Gorovikov, Sergey Zhu, Jian-Xin Yi, Ming Morosan, Emilia |
| author_facet | Gao, Yuxiang Allen, Kevin Mustaf, Rose Albu Zhang, Yichen Mishra, Sanu Lane, Christopher Zonno, Marta Gorovikov, Sergey Zhu, Jian-Xin Yi, Ming Morosan, Emilia |
| contents | Recent interest in quantum materials has focused on systems exhibiting both superconductivity and non-trivial band topology as material candidates to realize topological or unconventional superconducting states. So far, superconductivity in most topological materials has been identified as type II. In this work, we present magnetotransport studies on the quasi-two-dimensional type I superconductor $\mathrm{YbSb_2}$. Combined ab initio DFT calculations and quantum oscillation measurements confirm that $\mathrm{YbSb_2}$ is a Dirac nodal line semimetal in the normal state. The complex Fermi surface morphology is evidenced by the non-monotonic angular dependence of both the quantum oscillation amplitude and the magnetoresistance. Our results establish $\mathrm{YbSb_2}$ as a candidate material platform for exploring the interplay between band topology and superconductivity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_05401 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum oscillations and anisotropic magnetoresistance in the quasi-two-dimensional Dirac nodal line superconductor $\mathrm{YbSb_2}$ Gao, Yuxiang Allen, Kevin Mustaf, Rose Albu Zhang, Yichen Mishra, Sanu Lane, Christopher Zonno, Marta Gorovikov, Sergey Zhu, Jian-Xin Yi, Ming Morosan, Emilia Superconductivity Materials Science Recent interest in quantum materials has focused on systems exhibiting both superconductivity and non-trivial band topology as material candidates to realize topological or unconventional superconducting states. So far, superconductivity in most topological materials has been identified as type II. In this work, we present magnetotransport studies on the quasi-two-dimensional type I superconductor $\mathrm{YbSb_2}$. Combined ab initio DFT calculations and quantum oscillation measurements confirm that $\mathrm{YbSb_2}$ is a Dirac nodal line semimetal in the normal state. The complex Fermi surface morphology is evidenced by the non-monotonic angular dependence of both the quantum oscillation amplitude and the magnetoresistance. Our results establish $\mathrm{YbSb_2}$ as a candidate material platform for exploring the interplay between band topology and superconductivity. |
| title | Quantum oscillations and anisotropic magnetoresistance in the quasi-two-dimensional Dirac nodal line superconductor $\mathrm{YbSb_2}$ |
| topic | Superconductivity Materials Science |
| url | https://arxiv.org/abs/2510.05401 |