Disorder-broadened phase boundary with enhanced amorphous superconductivity in pressurized In2Te5
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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866914790737182720 |
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| author | Zhao, Yi Ying, Tianping Zhao, Lingxiao Wu, Juefei Pei, Cuiying Chen, Jing Deng, Jun Zhang, Qinghua Gu, Lin Wang, Qi Cao, Weizheng Li, Changhua Zhu, Shihao Zhang, Mingxin Yu, Na Zhang, Lili Chen, Yulin Chen, Chui-Zhen Yu, Tongxu Qi, Yanpeng |
| author_facet | Zhao, Yi Ying, Tianping Zhao, Lingxiao Wu, Juefei Pei, Cuiying Chen, Jing Deng, Jun Zhang, Qinghua Gu, Lin Wang, Qi Cao, Weizheng Li, Changhua Zhu, Shihao Zhang, Mingxin Yu, Na Zhang, Lili Chen, Yulin Chen, Chui-Zhen Yu, Tongxu Qi, Yanpeng |
| contents | As an empirical tool in materials science and engineering, the iconic phase diagram owes its robustness and practicality to the topological characteristics rooted in the celebrated Gibbs phase law (F = C - P + 2). When crossing the phase diagram boundary, the structure transition occurs abruptly, bringing about an instantaneous change in physical properties and limited controllability on the boundaries (F = 1). Here, we expand the sharp phase boundary to an amorphous transition region (F = 2) by partially disrupting the long-range translational symmetry, leading to a sequential crystalline-amorphous-crystalline (CAC) transition in a pressurized In2Te5 single crystal. Through detailed in-situ synchrotron diffraction, we elucidate that the phase transition stems from the rotation of immobile blocks [In2Te2]2+, linked by hinge-like [Te3]2- trimers. Remarkably, within the amorphous region, the amorphous phase demonstrates a notable 25 % increase of the superconducting transition temperature (Tc), while the carrier concentration remains relatively constant. Furthermore, we propose a theoretical framework revealing that the unconventional boost in amorphous superconductivity might be attributed to an intensified electron correlation, triggered by a disorder-augmented multifractal behavior. These findings underscore the potential of disorder and prompt further exploration of unforeseen phenomena on the phase boundaries. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_06449 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Disorder-broadened phase boundary with enhanced amorphous superconductivity in pressurized In2Te5 Zhao, Yi Ying, Tianping Zhao, Lingxiao Wu, Juefei Pei, Cuiying Chen, Jing Deng, Jun Zhang, Qinghua Gu, Lin Wang, Qi Cao, Weizheng Li, Changhua Zhu, Shihao Zhang, Mingxin Yu, Na Zhang, Lili Chen, Yulin Chen, Chui-Zhen Yu, Tongxu Qi, Yanpeng Superconductivity Materials Science Strongly Correlated Electrons As an empirical tool in materials science and engineering, the iconic phase diagram owes its robustness and practicality to the topological characteristics rooted in the celebrated Gibbs phase law (F = C - P + 2). When crossing the phase diagram boundary, the structure transition occurs abruptly, bringing about an instantaneous change in physical properties and limited controllability on the boundaries (F = 1). Here, we expand the sharp phase boundary to an amorphous transition region (F = 2) by partially disrupting the long-range translational symmetry, leading to a sequential crystalline-amorphous-crystalline (CAC) transition in a pressurized In2Te5 single crystal. Through detailed in-situ synchrotron diffraction, we elucidate that the phase transition stems from the rotation of immobile blocks [In2Te2]2+, linked by hinge-like [Te3]2- trimers. Remarkably, within the amorphous region, the amorphous phase demonstrates a notable 25 % increase of the superconducting transition temperature (Tc), while the carrier concentration remains relatively constant. Furthermore, we propose a theoretical framework revealing that the unconventional boost in amorphous superconductivity might be attributed to an intensified electron correlation, triggered by a disorder-augmented multifractal behavior. These findings underscore the potential of disorder and prompt further exploration of unforeseen phenomena on the phase boundaries. |
| title | Disorder-broadened phase boundary with enhanced amorphous superconductivity in pressurized In2Te5 |
| topic | Superconductivity Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2405.06449 |