Weakly Coupled Type-II Superconductivity in a Laves compound ZrRe2
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866911955196837888 |
|---|---|
| author | Yu, Yingpeng Liu, Zhaolong Li, Qi Chen, Zhaoxu Wang, Yulong Hao, Munan Yang, Yaling Gong, Chunsheng Chen, Long Xie, Zhenkai Zhou, Kaiyao Ren, Huifen Chen, Xu Jin, Shifeng |
| author_facet | Yu, Yingpeng Liu, Zhaolong Li, Qi Chen, Zhaoxu Wang, Yulong Hao, Munan Yang, Yaling Gong, Chunsheng Chen, Long Xie, Zhenkai Zhou, Kaiyao Ren, Huifen Chen, Xu Jin, Shifeng |
| contents | We present a comprehensive investigation of the superconducting properties of ZrRe2, a Re-based hexagonal Laves compounds. ZrRe2 crystallizes in a C14-type structure (space group P63/mmc), with cell parameters a=b=5.2682(5) and c=8.63045 . Resistivity and magnetic susceptibility data both suggest that ZrRe2 exhibits a sharp superconducting transition above 6.1 K. The measured lower and upper critical fields are 6.27 mT and 12.77 T, respectively, with a large upper critical field that approached the Pauli limit.Measurements of the heat capacity confirm the presence of bulk superconductivity, with a normalized specific heat change of 1.24 and an electron-phonon strength of 0.69 . DFT calculations revealed that the band structure of ZrRe2 is intricate and without van-Hove singularity. The observed large specific heat jump, combined with the electron-phonon strength , suggests that ZrRe2 is a weakly coupled type II superconductor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_10268 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Weakly Coupled Type-II Superconductivity in a Laves compound ZrRe2 Yu, Yingpeng Liu, Zhaolong Li, Qi Chen, Zhaoxu Wang, Yulong Hao, Munan Yang, Yaling Gong, Chunsheng Chen, Long Xie, Zhenkai Zhou, Kaiyao Ren, Huifen Chen, Xu Jin, Shifeng Superconductivity We present a comprehensive investigation of the superconducting properties of ZrRe2, a Re-based hexagonal Laves compounds. ZrRe2 crystallizes in a C14-type structure (space group P63/mmc), with cell parameters a=b=5.2682(5) and c=8.63045 . Resistivity and magnetic susceptibility data both suggest that ZrRe2 exhibits a sharp superconducting transition above 6.1 K. The measured lower and upper critical fields are 6.27 mT and 12.77 T, respectively, with a large upper critical field that approached the Pauli limit.Measurements of the heat capacity confirm the presence of bulk superconductivity, with a normalized specific heat change of 1.24 and an electron-phonon strength of 0.69 . DFT calculations revealed that the band structure of ZrRe2 is intricate and without van-Hove singularity. The observed large specific heat jump, combined with the electron-phonon strength , suggests that ZrRe2 is a weakly coupled type II superconductor. |
| title | Weakly Coupled Type-II Superconductivity in a Laves compound ZrRe2 |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2407.10268 |