Unabridged phase diagram for single-phased FeSex Te1-x thin films

Jincheng Zhuang; Wai Kong Yeoh; Xiangyuan Cui; Xun Xu; Yi Du; Zhixiang Shi; Simon P. Ringer; Xiaolin Wang; Shi Xue Dou

doi:10.1038/srep07273

Unabridged phase diagram for single-phased FeSe_x Te_1-x thin films

Jincheng Zhuang
, Wai Kong Yeoh
, Xiangyuan Cui
, Xun Xu
, Yi Du
, Zhixiang Shi^*
, Simon P. Ringer
, Xiaolin Wang
, Shi Xue Dou

^*Corresponding author for this work

Southeast University, Nanjing
University of Wollongong
The University of Sydney

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

49 Scopus citations

Abstract

A complete phase diagram and its corresponding physical properties are essential prerequisites to understand the underlying mechanism of iron-based superconductivity. For the structurally simplest 11 (FeSeTe) system, earlier attempts using bulk samples have not been able to do so due to the fabrication difficulties. Here, thin FeSe_x Te_1-x films with the Se content covering the full range (0 ≤ x ≤ 1) were fabricated by using pulsed laser deposition method. Crystal structure analysis shows that all films retain the tetragonal structure in room temperature. Significantly, the highest superconducting transition temperature (T_C = 20 K) occurs in the newly discovered domain, i.e., 0.6 ≤ x ≤ 0.8. The single-phased superconducting dome for the full Se doping range is the first of its kind in iron chalcogenide superconductors. Our results present a new avenue to explore novel physics as well as to optimize superconductors.

Original language	English
Article number	7273
Journal	Scientific Reports
Volume	4
DOIs	https://doi.org/10.1038/srep07273
State	Published - 2 Dec 2014
Externally published	Yes

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title = "Unabridged phase diagram for single-phased FeSex Te1-x thin films",

abstract = "A complete phase diagram and its corresponding physical properties are essential prerequisites to understand the underlying mechanism of iron-based superconductivity. For the structurally simplest 11 (FeSeTe) system, earlier attempts using bulk samples have not been able to do so due to the fabrication difficulties. Here, thin FeSex Te1-x films with the Se content covering the full range (0 ≤ x ≤ 1) were fabricated by using pulsed laser deposition method. Crystal structure analysis shows that all films retain the tetragonal structure in room temperature. Significantly, the highest superconducting transition temperature (TC = 20 K) occurs in the newly discovered domain, i.e., 0.6 ≤ x ≤ 0.8. The single-phased superconducting dome for the full Se doping range is the first of its kind in iron chalcogenide superconductors. Our results present a new avenue to explore novel physics as well as to optimize superconductors.",

author = "Jincheng Zhuang and Yeoh, \{Wai Kong\} and Xiangyuan Cui and Xun Xu and Yi Du and Zhixiang Shi and Ringer, \{Simon P.\} and Xiaolin Wang and Dou, \{Shi Xue\}",

year = "2014",

month = dec,

day = "2",

doi = "10.1038/srep07273",

language = "英语",

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journal = "Scientific Reports",

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TY - JOUR

T1 - Unabridged phase diagram for single-phased FeSex Te1-x thin films

AU - Zhuang, Jincheng

AU - Yeoh, Wai Kong

AU - Cui, Xiangyuan

AU - Xu, Xun

AU - Du, Yi

AU - Shi, Zhixiang

AU - Ringer, Simon P.

AU - Wang, Xiaolin

AU - Dou, Shi Xue

PY - 2014/12/2

Y1 - 2014/12/2

N2 - A complete phase diagram and its corresponding physical properties are essential prerequisites to understand the underlying mechanism of iron-based superconductivity. For the structurally simplest 11 (FeSeTe) system, earlier attempts using bulk samples have not been able to do so due to the fabrication difficulties. Here, thin FeSex Te1-x films with the Se content covering the full range (0 ≤ x ≤ 1) were fabricated by using pulsed laser deposition method. Crystal structure analysis shows that all films retain the tetragonal structure in room temperature. Significantly, the highest superconducting transition temperature (TC = 20 K) occurs in the newly discovered domain, i.e., 0.6 ≤ x ≤ 0.8. The single-phased superconducting dome for the full Se doping range is the first of its kind in iron chalcogenide superconductors. Our results present a new avenue to explore novel physics as well as to optimize superconductors.

AB - A complete phase diagram and its corresponding physical properties are essential prerequisites to understand the underlying mechanism of iron-based superconductivity. For the structurally simplest 11 (FeSeTe) system, earlier attempts using bulk samples have not been able to do so due to the fabrication difficulties. Here, thin FeSex Te1-x films with the Se content covering the full range (0 ≤ x ≤ 1) were fabricated by using pulsed laser deposition method. Crystal structure analysis shows that all films retain the tetragonal structure in room temperature. Significantly, the highest superconducting transition temperature (TC = 20 K) occurs in the newly discovered domain, i.e., 0.6 ≤ x ≤ 0.8. The single-phased superconducting dome for the full Se doping range is the first of its kind in iron chalcogenide superconductors. Our results present a new avenue to explore novel physics as well as to optimize superconductors.

UR - https://www.scopus.com/pages/publications/84928960580

U2 - 10.1038/srep07273

DO - 10.1038/srep07273

M3 - 文章

AN - SCOPUS:84928960580

SN - 2045-2322

VL - 4

JO - Scientific Reports

JF - Scientific Reports

M1 - 7273

ER -

Unabridged phase diagram for single-phased FeSe_x Te_1-x thin films

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