A disorder-sensitive emergent vortex phase identified in high- T csuperconductor (Li,Fe)OHFeSe

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

doi:10.1088/1361-6668/ac68a9

A disorder-sensitive emergent vortex phase identified in high- T _csuperconductor (Li,Fe)OHFeSe

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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-T c (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-T c (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.

Original language	English
Article number	064007
Journal	Superconductor Science and Technology
Volume	35
Issue number	6
DOIs	https://doi.org/10.1088/1361-6668/ac68a9
Publication status	Published - 1 Jun 2022
Externally published	Yes

Keywords

(Li, Fe)OHFeSe films
high field transport
iron-based superconductors
vortex phase diagram

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10.1088/1361-6668/ac68a9

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Li, D., Shen, P., Tian, J., He, G., Ni, S., Wang, Z., Xi, C., Pi, L., Zhang, H., Yuan, J., Jin, K., Talantsev, E. F., Yu, L., Zhou, F., Hänisch, J., Dong, X., & Zhao, Z. (2022). A disorder-sensitive emergent vortex phase identified in high- T _csuperconductor (Li,Fe)OHFeSe. Superconductor Science and Technology, 35(6), Article 064007. https://doi.org/10.1088/1361-6668/ac68a9

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title = "A disorder-sensitive emergent vortex phase identified in high- T csuperconductor (Li,Fe)OHFeSe",

abstract = "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-T c (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-T c (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.",

keywords = "(Li, Fe)OHFeSe films, high field transport, iron-based superconductors, vortex phase diagram",

author = "Dong Li and Peipei Shen and Jinpeng Tian and Ge He and Shunli Ni and Zhaosheng Wang and Chuanying Xi and Li Pi and Hua Zhang and Jie Yuan and Kui Jin and Talantsev, \{Evgeny F.\} and Li Yu and Fang Zhou and Jens H{\"a}nisch and Xiaoli Dong and Zhongxian Zhao",

note = "Publisher Copyright: {\textcopyright} 2022 IOP Publishing Ltd.",

year = "2022",

month = jun,

day = "1",

doi = "10.1088/1361-6668/ac68a9",

language = "English",

volume = "35",

journal = "Superconductor Science and Technology",

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TY - JOUR

T1 - A disorder-sensitive emergent vortex phase identified in high- T csuperconductor (Li,Fe)OHFeSe

AU - Li, Dong

AU - Shen, Peipei

AU - Tian, Jinpeng

AU - He, Ge

AU - Ni, Shunli

AU - Wang, Zhaosheng

AU - Xi, Chuanying

AU - Pi, Li

AU - Zhang, Hua

AU - Yuan, Jie

AU - Jin, Kui

AU - Talantsev, Evgeny F.

AU - Yu, Li

AU - Zhou, Fang

AU - Hänisch, Jens

AU - Dong, Xiaoli

AU - Zhao, Zhongxian

PY - 2022/6/1

Y1 - 2022/6/1

N2 - 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-T c (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-T c (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.

AB - 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-T c (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-T c (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.

KW - (Li, Fe)OHFeSe films

KW - high field transport

KW - iron-based superconductors

KW - vortex phase diagram

UR - https://www.scopus.com/pages/publications/85130198296

U2 - 10.1088/1361-6668/ac68a9

DO - 10.1088/1361-6668/ac68a9

M3 - Article

AN - SCOPUS:85130198296

SN - 0953-2048

VL - 35

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 6

M1 - 064007

ER -

A disorder-sensitive emergent vortex phase identified in high- T _csuperconductor (Li,Fe)OHFeSe

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Keywords

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