High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2Fe4Se5 Superconductor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Feng YE
  • Song-Xue CHI
  • Antonio M. dos Santos
  • Jamie J. Molaison
  • Ming-Hu FANG
  • Hang-Dong WANG
  • Qian-Hui MAO
  • Jin-Chen WANG
  • Juan-Juan LIU
  • Jie-Ming SHENG

Detail(s)

Original languageEnglish
Article number127401
Journal / PublicationChinese Physics Letters
Volume31
Issue number12
Publication statusPublished - Dec 2014
Externally publishedYes

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.

Citation Format(s)

High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2Fe4Se5 Superconductor. / YE, Feng; BAO, Wei; CHI, Song-Xue; Santos, Antonio M. dos; Molaison, Jamie J.; FANG, Ming-Hu; WANG, Hang-Dong; MAO, Qian-Hui; WANG, Jin-Chen; LIU, Juan-Juan; SHENG, Jie-Ming.

In: Chinese Physics Letters, Vol. 31, No. 12, 127401, 12.2014.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review