A disorder-sensitive emergent vortex phase identified in high-T c superconductor (Li,Fe)OHFeSe
| Autor: | Dong Li, Peipei Shen, Jinpeng Tian, Ge He, Shunli Ni, Zhaosheng Wang, Chuanying Xi, Li Pi, Hua Zhang, Jie Yuan, Kui Jin, Evgeny F Talantsev, Li Yu, Fang Zhou, Jens Hänisch, Xiaoli Dong, Zhongxian Zhao |
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| Rok vydání: | 2022 |
| Předmět: |
IRON SELENIDE
MAGNETO TRANSPORT PROPERTIES DEGREE OF DISORDER HYDROTHERMALLY SUPERCONDUCTING FILMS FOS: Physical sciences VORTEX PHASE DIAGRAM HIGH FIELD TRANSPORT Superconductivity (cond-mat.supr-con) Condensed Matter::Superconductivity Materials Chemistry IRON COMPOUNDS HIGH T C Electrical and Electronic Engineering (LI FE)OHFESE FILMS Condensed Matter - Superconductivity IRON-BASED SUPERCONDUCTORS Metals and Alloys VORTEX FLOW PHASE DIAGRAMS SINGLE CRYSTALS Condensed Matter Physics (LI FE)OHFESE FILM SINGLE-CRYSTAL FILMS DIRECTION FIELDS Ceramics and Composites |
| Zdroj: | Superconductor Science and Technology |
| ISSN: | 1361-6668 0953-2048 |
| DOI: | 10.1088/1361-6668/ac68a9 |
| Popis: | The magneto-transport properties are systematically measured under c-direction fields up to 33 T for a series of single-crystal films of intercalated iron-selenide superconductor (Li,Fe)OHFeSe. The film samples with varying degree of disorder are grown hydrothermally. We observe a magnetic-field-enhanced shoulder-like feature in the mixed state of the high-Tc (Li,Fe)OHFeSe films with weak disorder, while the feature fades away in the films with enhanced disorder. The irreversibility field is significantly suppressed to lower temperatures with the appearance of the shoulder feature. Based on the experiment and model analysis, we establish a new vortex phase diagram for the weakly disordered high-Tc (Li,Fe)OHFeSe, which features an emergent dissipative vortex phase intermediate between the common vortex glass and liquid phases. The reason for the emergence of this intermediate vortex state is further discussed based on related experiments and models. 15 pages, 4 figures |
| Databáze: | OpenAIRE |
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