TY - JOUR
T1 - High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2Fe4Se5 Superconductor
AU - YE Feng (叶峰), null
AU - BAO Wei (鲍威), null
AU - CHI Song-Xue (池松雪), null
AU - Santos, Antonio M. dos
AU - Molaison, Jamie J.
AU - FANG Ming-Hu (方明虎), null
AU - WANG Hang-Dong (王杭栋), null
AU - MAO Qian-Hui (毛乾辉), null
AU - WANG Jin-Chen (汪晋辰), null
AU - LIU Juan-Juan (刘娟娟), null
AU - SHENG Jie-Ming (盛洁明), null
PY - 2014/12
Y1 - 2014/12
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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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84915746832&origin=recordpage
U2 - 10.1088/0256-307X/31/12/127401
DO - 10.1088/0256-307X/31/12/127401
M3 - RGC 21 - Publication in refereed journal
SN - 0256-307X
VL - 31
JO - Chinese Physics Letters
JF - Chinese Physics Letters
IS - 12
M1 - 127401
ER -