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Title: Interplay of magnetism and superconductivity in the compressed Fe-ladder compound BaFe 2 Se 3

Abstract

High pressure resistance, susceptibility, and Fe K β x-ray emission spectroscopy measurements were performed on Fe-ladder compound BaFe 2 Se 3 . Pressure-induced superconductivity was observed which is similar to the previously reported superconductivity in the BaFe 2 S 3 samples. The slope of local magnetic moment versus pressure shows an anomaly across the insulator-metal transition pressure in the BaFe 2 Se 3 samples. The local magnetic moment is continuously decreasing with increasing pressure, and the superconductivity appears only when the local magnetic moment value is comparable to the one in the iron-pnictide superconductors. Our results indicate that the compressed BaFe 2 C h 3 ( C h = S , Se) is a new family of iron-based superconductors. Despite the crystal structures completely different from the known iron-based superconducting materials, the magnetism in this Fe-ladder material plays a critical role in superconductivity. This behavior is similar to the other members of iron-based superconducting materials.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research in Extreme Environments (EFree)
Sponsoring Org.:
DOE - BASIC ENERGY SCIENCESDOE-NNSA
OSTI Identifier:
1372227
Resource Type:
Journal Article
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 24; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
ENGLISH
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Ying, Jianjun, Lei, Hechang, Petrovic, Cedomir, Xiao, Yuming, and Struzhkin, Viktor V. Interplay of magnetism and superconductivity in the compressed Fe-ladder compound BaFe2Se3. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.241109.
Ying, Jianjun, Lei, Hechang, Petrovic, Cedomir, Xiao, Yuming, & Struzhkin, Viktor V. Interplay of magnetism and superconductivity in the compressed Fe-ladder compound BaFe2Se3. United States. doi:10.1103/PhysRevB.95.241109.
Ying, Jianjun, Lei, Hechang, Petrovic, Cedomir, Xiao, Yuming, and Struzhkin, Viktor V. Thu . "Interplay of magnetism and superconductivity in the compressed Fe-ladder compound BaFe2Se3". United States. doi:10.1103/PhysRevB.95.241109.
@article{osti_1372227,
title = {Interplay of magnetism and superconductivity in the compressed Fe-ladder compound BaFe2Se3},
author = {Ying, Jianjun and Lei, Hechang and Petrovic, Cedomir and Xiao, Yuming and Struzhkin, Viktor V.},
abstractNote = {High pressure resistance, susceptibility, and Fe K β x-ray emission spectroscopy measurements were performed on Fe-ladder compound BaFe 2 Se 3 . Pressure-induced superconductivity was observed which is similar to the previously reported superconductivity in the BaFe 2 S 3 samples. The slope of local magnetic moment versus pressure shows an anomaly across the insulator-metal transition pressure in the BaFe 2 Se 3 samples. The local magnetic moment is continuously decreasing with increasing pressure, and the superconductivity appears only when the local magnetic moment value is comparable to the one in the iron-pnictide superconductors. Our results indicate that the compressed BaFe 2 C h 3 ( C h = S , Se) is a new family of iron-based superconductors. Despite the crystal structures completely different from the known iron-based superconducting materials, the magnetism in this Fe-ladder material plays a critical role in superconductivity. This behavior is similar to the other members of iron-based superconducting materials.},
doi = {10.1103/PhysRevB.95.241109},
journal = {Physical Review B},
issn = {2469-9950},
number = 24,
volume = 95,
place = {United States},
year = {2017},
month = {6}
}

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