High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2 Fe4 Se5 Superconductor
Abstract
We investigate the magnetic and iron vacancy orders in superconducting (Tl,Rb)2Fe4Se5 single-crystals 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. Lastly, a synthesis of current experimental data in a coherent physical picture is attempted.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division; Univ. of Kentucky, Lexington, KY (United States)
- Renmin Univ. of China, Beijing (China)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
- Zhejiang Univ., Hangzhou (China)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Basic Research Program of China; National Natural Science Foundation of China (NSFC)
- OSTI Identifier:
- 1185512
- Grant/Contract Number:
- AC05-00OR22725; 2012CB921700; 2011CBA00112; 2011CBA00103; 2012CB821404
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Chinese Physics Letters
- Additional Journal Information:
- Journal Volume: 31; Journal Issue: 12; Journal ID: ISSN 0256-307X
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
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, and Sheng, Jie-Ming. High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2 Fe4 Se5 Superconductor. United States: N. p., 2014.
Web. doi:10.1088/0256-307X/31/12/127401.
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. High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2 Fe4 Se5 Superconductor. United States. https://doi.org/10.1088/0256-307X/31/12/127401
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, and Sheng, Jie-Ming. Mon .
"High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2 Fe4 Se5 Superconductor". United States. https://doi.org/10.1088/0256-307X/31/12/127401. https://www.osti.gov/servlets/purl/1185512.
@article{osti_1185512,
title = {High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2 Fe4 Se5 Superconductor},
author = {Ye, Feng and Bao, Wei and Chi, Song-Xue and Santos, Antonio M. dos and Molaison, Jamie J. and Fang, Ming-Hu and Wang, Hang-Dong and Mao, Qian-Hui and Wang, Jin-Chen and Liu, Juan-Juan and Sheng, Jie-Ming},
abstractNote = {We investigate the magnetic and iron vacancy orders in superconducting (Tl,Rb)2Fe4Se5 single-crystals 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. Lastly, a synthesis of current experimental data in a coherent physical picture is attempted.},
doi = {10.1088/0256-307X/31/12/127401},
journal = {Chinese Physics Letters},
number = 12,
volume = 31,
place = {United States},
year = {Mon Dec 01 00:00:00 EST 2014},
month = {Mon Dec 01 00:00:00 EST 2014}
}
Web of Science
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Works referencing / citing this record:
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