High-pressure single-crystal neutron scattering study of magnetic and fe vacancy orders in (Tl,Rb)2Fe4Se5 superconductor

Feng Ye; Wei Bao; Song Xue Chi; Ming Hu Fang; Hang Dong Wang; Qian Hui Mao; Jin Chen Wang; Juan Juan Liu; Jie Ming Sheng; Antonio M.Dos Santos; Jamie J. Molaison

doi:10.1088/0256-307X/31/12/127401

High-pressure single-crystal neutron scattering study of magnetic and fe vacancy orders in (Tl,Rb)₂Fe₄Se₅ superconductor

Feng Ye, Wei Bao, Song Xue Chi, Ming Hu Fang, Hang Dong Wang, Qian Hui Mao, Jin Chen Wang, Juan Juan Liu, Jie Ming Sheng, Antonio M.Dos Santos, Jamie J. Molaison

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

12 Scopus citations

Abstract

The magnetic and iron vacancy orders in superconducting (Tl,Rb)₂Fe₄Se₅ single-crystals are investigated by using a high-pressure neutron diffraction technique. Similar to the temperature effect, the block antiferromagnetic order gradually decreases upon increasing pressure while the Fe vacancy superstructural order remains intact before its precipitous disappearance at the critical pressure P_c = 8.3 GPa. Combined with previously determined P_c for superconductivity, our phase diagram under pressure reveals the concurrence of the block AFM order, the 5 × 5 iron vacancy order and superconductivity for the 245 superconductor. A synthesis of current experimental data in a coherent physical picture is attempted.

Original language	English
Article number	127401
Journal	Chinese Physics Letters
Volume	31
Issue number	12
DOIs	https://doi.org/10.1088/0256-307X/31/12/127401
State	Published - Dec 1 2014

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title = "High-pressure single-crystal neutron scattering study of magnetic and fe vacancy orders in (Tl,Rb)2Fe4Se5 superconductor",

abstract = "The magnetic and iron vacancy orders in superconducting (Tl,Rb)2Fe4Se5 single-crystals are investigated by using a high-pressure neutron diffraction technique. Similar to the temperature effect, the block antiferromagnetic order gradually decreases upon increasing pressure while the Fe vacancy superstructural order remains intact before its precipitous disappearance at the critical pressure Pc = 8.3 GPa. Combined with previously determined Pc for superconductivity, our phase diagram under pressure reveals the concurrence of the block AFM order, the 5 × 5 iron vacancy order and superconductivity for the 245 superconductor. A synthesis of current experimental data in a coherent physical picture is attempted.",

author = "Feng Ye and Wei Bao and Chi, {Song Xue} and Fang, {Ming Hu} and Wang, {Hang Dong} and Mao, {Qian Hui} and Wang, {Jin Chen} and Liu, {Juan Juan} and Sheng, {Jie Ming} and Santos, {Antonio M.Dos} and Molaison, {Jamie J.}",

note = "Publisher Copyright: {\textcopyright} 2014 Chinese Physical Society and IOP Publishing Ltd.",

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doi = "10.1088/0256-307X/31/12/127401",

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TY - JOUR

T1 - High-pressure single-crystal neutron scattering study of magnetic and fe vacancy orders in (Tl,Rb)2Fe4Se5 superconductor

AU - Ye, Feng

AU - Bao, Wei

AU - Chi, Song Xue

AU - Fang, Ming Hu

AU - Wang, Hang Dong

AU - Mao, Qian Hui

AU - Wang, Jin Chen

AU - Liu, Juan Juan

AU - Sheng, Jie Ming

AU - Santos, Antonio M.Dos

AU - Molaison, Jamie J.

PY - 2014/12/1

Y1 - 2014/12/1

N2 - The magnetic and iron vacancy orders in superconducting (Tl,Rb)2Fe4Se5 single-crystals are investigated by using a high-pressure neutron diffraction technique. Similar to the temperature effect, the block antiferromagnetic order gradually decreases upon increasing pressure while the Fe vacancy superstructural order remains intact before its precipitous disappearance at the critical pressure Pc = 8.3 GPa. Combined with previously determined Pc for superconductivity, our phase diagram under pressure reveals the concurrence of the block AFM order, the 5 × 5 iron vacancy order and superconductivity for the 245 superconductor. A synthesis of current experimental data in a coherent physical picture is attempted.

AB - The magnetic and iron vacancy orders in superconducting (Tl,Rb)2Fe4Se5 single-crystals are investigated by using a high-pressure neutron diffraction technique. Similar to the temperature effect, the block antiferromagnetic order gradually decreases upon increasing pressure while the Fe vacancy superstructural order remains intact before its precipitous disappearance at the critical pressure Pc = 8.3 GPa. Combined with previously determined Pc for superconductivity, our phase diagram under pressure reveals the concurrence of the block AFM order, the 5 × 5 iron vacancy order and superconductivity for the 245 superconductor. A synthesis of current experimental data in a coherent physical picture is attempted.

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U2 - 10.1088/0256-307X/31/12/127401

DO - 10.1088/0256-307X/31/12/127401

M3 - Article

AN - SCOPUS:84915746832

SN - 0256-307X

VL - 31

JO - Chinese Physics Letters

JF - Chinese Physics Letters

IS - 12

M1 - 127401

ER -

High-pressure single-crystal neutron scattering study of magnetic and fe vacancy orders in (Tl,Rb)₂Fe₄Se₅ superconductor

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