Disorder-Broadened Phase Boundary with Enhanced Amorphous Superconductivity in Pressurized In2Te5

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 27 vom: 02. Juli, Seite e2401118
1. Verfasser:	Zhao, Yi (VerfasserIn)
Weitere Verfasser:	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
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article amorphization and recrystallization high pressure phase boundaries superconductivity enhancement

Beschreibung
Zusammenfassung:	© 2024 Wiley‐VCH GmbH. 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 free variables (F) = components (C) - phases (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, the sharp phase boundary is expanded 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, it is elucidated 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, a theoretical framework is proposed 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
Beschreibung:	Date Revised 04.07.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202401118