Enhancement of superconducting properties in polycrystalline Fe(Se, Te)via a dual coordination effect

Jixing Liu; Shengnan Zhang; Lina Sang; Meng Li; Weiyao Zhao; Zhi Li; Zhenxiang Cheng; Liqiang Liu; Jianqing Feng; Chengshan Li; Pingxiang Zhang; Shixue Dou; Lian Zhou; Xiaolin Wang

doi:10.1016/j.scriptamat.2019.04.029

Enhancement of superconducting properties in polycrystalline Fe(Se, Te)via a dual coordination effect

Jixing Liu, Shengnan Zhang, Lina Sang, Meng Li, Weiyao Zhao, Zhi Li, Zhenxiang Cheng, Liqiang Liu, Jianqing Feng, Chengshan Li, Pingxiang Zhang, Shixue Dou, Lian Zhou, Xiaolin Wang

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

13 Scopus citations

Abstract

Cl-doped Fe(Se, Te)superconductors were fabricated through a melting method followed by hydrostatic pressure (HP)post treatment. A dual coordination effect has been aroused, viz. the introduction of Cl⁻ ions triggered the nucleation and growth of nanometric point-like secondary phase as extra pinning centers, while HP strengthened the pinning competence of these point defects. As a result, the superconducting phase volume, critical temperature, and critical current density have been improved by 12.2%, 42.3%, and nearly 100 times, respectively, compared with the undoped sample without HP.

Original language	English
Pages (from-to)	19-22
Number of pages	4
Journal	Scripta Materialia
Volume	169
DOIs	https://doi.org/10.1016/j.scriptamat.2019.04.029
State	Published - Aug 2019
Externally published	Yes

Keywords

Chemical doping
Hydrostatic pressure
Superconductivity

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10.1016/j.scriptamat.2019.04.029

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title = "Enhancement of superconducting properties in polycrystalline Fe(Se, Te)via a dual coordination effect",

abstract = "Cl-doped Fe(Se, Te)superconductors were fabricated through a melting method followed by hydrostatic pressure (HP)post treatment. A dual coordination effect has been aroused, viz. the introduction of Cl− ions triggered the nucleation and growth of nanometric point-like secondary phase as extra pinning centers, while HP strengthened the pinning competence of these point defects. As a result, the superconducting phase volume, critical temperature, and critical current density have been improved by 12.2%, 42.3%, and nearly 100 times, respectively, compared with the undoped sample without HP.",

keywords = "Chemical doping, Hydrostatic pressure, Superconductivity",

author = "Jixing Liu and Shengnan Zhang and Lina Sang and Meng Li and Weiyao Zhao and Zhi Li and Zhenxiang Cheng and Liqiang Liu and Jianqing Feng and Chengshan Li and Pingxiang Zhang and Shixue Dou and Lian Zhou and Xiaolin Wang",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = aug,

doi = "10.1016/j.scriptamat.2019.04.029",

language = "英语",

volume = "169",

pages = "19--22",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

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TY - JOUR

T1 - Enhancement of superconducting properties in polycrystalline Fe(Se, Te)via a dual coordination effect

AU - Liu, Jixing

AU - Zhang, Shengnan

AU - Sang, Lina

AU - Li, Meng

AU - Zhao, Weiyao

AU - Li, Zhi

AU - Cheng, Zhenxiang

AU - Liu, Liqiang

AU - Feng, Jianqing

AU - Li, Chengshan

AU - Zhang, Pingxiang

AU - Dou, Shixue

AU - Zhou, Lian

AU - Wang, Xiaolin

PY - 2019/8

Y1 - 2019/8

N2 - Cl-doped Fe(Se, Te)superconductors were fabricated through a melting method followed by hydrostatic pressure (HP)post treatment. A dual coordination effect has been aroused, viz. the introduction of Cl− ions triggered the nucleation and growth of nanometric point-like secondary phase as extra pinning centers, while HP strengthened the pinning competence of these point defects. As a result, the superconducting phase volume, critical temperature, and critical current density have been improved by 12.2%, 42.3%, and nearly 100 times, respectively, compared with the undoped sample without HP.

AB - Cl-doped Fe(Se, Te)superconductors were fabricated through a melting method followed by hydrostatic pressure (HP)post treatment. A dual coordination effect has been aroused, viz. the introduction of Cl− ions triggered the nucleation and growth of nanometric point-like secondary phase as extra pinning centers, while HP strengthened the pinning competence of these point defects. As a result, the superconducting phase volume, critical temperature, and critical current density have been improved by 12.2%, 42.3%, and nearly 100 times, respectively, compared with the undoped sample without HP.

KW - Chemical doping

KW - Hydrostatic pressure

KW - Superconductivity

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U2 - 10.1016/j.scriptamat.2019.04.029

DO - 10.1016/j.scriptamat.2019.04.029

M3 - 文章

AN - SCOPUS:85065423427

SN - 1359-6462

VL - 169

SP - 19

EP - 22

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Enhancement of superconducting properties in polycrystalline Fe(Se, Te)via a dual coordination effect

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Keywords

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