Superconductivity in Breathing Kagome-Structured C14 Laves Phase XOs2(X = Zr, Hf)
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929210237386752 |
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| author | Meena, P. K. Mandal, M. Manna, P. Srivastava, S. Sharma, S. Mishra, P. Singh, R. P. |
| author_facet | Meena, P. K. Mandal, M. Manna, P. Srivastava, S. Sharma, S. Mishra, P. Singh, R. P. |
| contents | Recently, the emergence of superconductivity in kagome metals has generated significant interest due to its interaction with flat bands and topological electronic states, which exhibit a range of unusual quantum characteristics. This study thoroughly investigates largely unexplored breathing Kagome structure C14 laves phase compounds XOs$_{2}$ (X = Zr, Hf) by XRD, electrical transport, magnetization, and specific heat measurements. Our analyses confirm the presence of the MgZn$_{2}$-type structure in ZrOs$_{2}$ and HfOs$_{2}$ compounds, exhibiting type-II superconductivity with critical temperature (T$_{C}$) values of 2.90(3) K and 2.69(6) K, respectively. Furthermore, specific heat measurements and an electron-phonon coupling constant suggest the presence of weakly coupled BCS superconductivity in both compounds. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_07610 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Superconductivity in Breathing Kagome-Structured C14 Laves Phase XOs2(X = Zr, Hf) Meena, P. K. Mandal, M. Manna, P. Srivastava, S. Sharma, S. Mishra, P. Singh, R. P. Superconductivity Recently, the emergence of superconductivity in kagome metals has generated significant interest due to its interaction with flat bands and topological electronic states, which exhibit a range of unusual quantum characteristics. This study thoroughly investigates largely unexplored breathing Kagome structure C14 laves phase compounds XOs$_{2}$ (X = Zr, Hf) by XRD, electrical transport, magnetization, and specific heat measurements. Our analyses confirm the presence of the MgZn$_{2}$-type structure in ZrOs$_{2}$ and HfOs$_{2}$ compounds, exhibiting type-II superconductivity with critical temperature (T$_{C}$) values of 2.90(3) K and 2.69(6) K, respectively. Furthermore, specific heat measurements and an electron-phonon coupling constant suggest the presence of weakly coupled BCS superconductivity in both compounds. |
| title | Superconductivity in Breathing Kagome-Structured C14 Laves Phase XOs2(X = Zr, Hf) |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2401.07610 |