Distinct pressure evolution of superconductivity and charge-density-wave in kagome superconductor CsV$_3$Sb$_5$ thin flakes
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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911773913776128 |
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| author | Ye, Ge Xie, Mengwei Chen, Chufan Zhang, Yanan Zhang, Dongting Ma, Xin Zeng, Xiangyu Yu, Fanghang Liu, Yi Wang, Xiaozhi Cao, Guanghan Xu, Xiaofeng Chen, Xianhui Yuan, Huiqiu Cao, Chao Lu, Xin |
| author_facet | Ye, Ge Xie, Mengwei Chen, Chufan Zhang, Yanan Zhang, Dongting Ma, Xin Zeng, Xiangyu Yu, Fanghang Liu, Yi Wang, Xiaozhi Cao, Guanghan Xu, Xiaofeng Chen, Xianhui Yuan, Huiqiu Cao, Chao Lu, Xin |
| contents | It is intriguing to explore the coexistence and (or) competition between charge-density-wave (CDW) and superconductivity (SC) in many correlated electron systems, such as cuprates, organic superconductors and dichacolgenides. Among them, the recently discovered $\mathbb{Z} _2$ topological kagome metals AV$_3$Sb$_5$ (A=K, Rb, Cs) serve as an ideal platform to study the intricate relation between them. Here, we report the electrical resistance measurements on CsV$_3$Sb$_5$ thin flakes ($\approx$ 60 nm) under hydrostatic pressure up to 2.12 GPa to compare its pressure phase diagram of CDW and SC with its bulk form. Even though the CDW transition temperature (T$_{CDW}$) in CsV$_3$Sb$_5$ thin flakes is still monotonically suppressed under pressure and totally vanishes at P$_2$=1.83 GPa similar to the bulk, the superconducting transition temperature (T$_c$) shows an initial decrease and consequent increase up to its maximum $\sim$ 8.03 K at P$_2$, in sharp contrast with the M-shaped double domes in the bulk CsV$_3$Sb$_5$. Our results suggest the important role of reduced dimensionality on the CDW state and its interplay with the SC, offering a new perspective to explore the exotic nature of CsV$_3$Sb$_5$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2402_06248 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Distinct pressure evolution of superconductivity and charge-density-wave in kagome superconductor CsV$_3$Sb$_5$ thin flakes Ye, Ge Xie, Mengwei Chen, Chufan Zhang, Yanan Zhang, Dongting Ma, Xin Zeng, Xiangyu Yu, Fanghang Liu, Yi Wang, Xiaozhi Cao, Guanghan Xu, Xiaofeng Chen, Xianhui Yuan, Huiqiu Cao, Chao Lu, Xin Superconductivity Strongly Correlated Electrons It is intriguing to explore the coexistence and (or) competition between charge-density-wave (CDW) and superconductivity (SC) in many correlated electron systems, such as cuprates, organic superconductors and dichacolgenides. Among them, the recently discovered $\mathbb{Z} _2$ topological kagome metals AV$_3$Sb$_5$ (A=K, Rb, Cs) serve as an ideal platform to study the intricate relation between them. Here, we report the electrical resistance measurements on CsV$_3$Sb$_5$ thin flakes ($\approx$ 60 nm) under hydrostatic pressure up to 2.12 GPa to compare its pressure phase diagram of CDW and SC with its bulk form. Even though the CDW transition temperature (T$_{CDW}$) in CsV$_3$Sb$_5$ thin flakes is still monotonically suppressed under pressure and totally vanishes at P$_2$=1.83 GPa similar to the bulk, the superconducting transition temperature (T$_c$) shows an initial decrease and consequent increase up to its maximum $\sim$ 8.03 K at P$_2$, in sharp contrast with the M-shaped double domes in the bulk CsV$_3$Sb$_5$. Our results suggest the important role of reduced dimensionality on the CDW state and its interplay with the SC, offering a new perspective to explore the exotic nature of CsV$_3$Sb$_5$. |
| title | Distinct pressure evolution of superconductivity and charge-density-wave in kagome superconductor CsV$_3$Sb$_5$ thin flakes |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2402.06248 |