Pressure-enhanced superconductivity in
Abstract
The pressure effect on the newly discovered charge-transferred BiS2-based superconductor, Eu3Bi2S4F4, with a Tc of 1.5 K at ambient pressure, is investigated by transport and magnetic measurements. Accompanied with the enhancement of metallicity under pressures, the onset superconducting transition temperature increases abruptly around 1.0 GPa, reaching ~10.0 K at 2.26 GPa. Alternating current magnetic susceptibility measurements indicate that a new superconducting phase with a higher Tc emerges and dominates at high pressures. In the broad pressure window of 0.68GPa≤p≤2.00 GPa, the high-Tc phase coexists with the low-Tc phase. Hall effect measurements reveal a significant difference in electronic structures between the two superconducting phases. As a result, our work devotes the effort to establish the commonality of pressure effect on the BiS2-based superconductors, and also uncovers the importance of electron carrier density in the high-Tc phase.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Zhejiang Univ., Hangzhou (China)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1227732
- Report Number(s):
- LA-UR-14-28575
Journal ID: ISSN 1098-0121; PRBMDO
- Grant/Contract Number:
- 11190023; AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 90; Journal Issue: 22; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE
Citation Formats
Luo, Yongkang, Zhai, Hui -Fei, Zhang, Pan, Xu, Zhu -An, Cao, Guang -Han, and Thompson, J. D. Pressure-enhanced superconductivity in Eu3Bi2S4F4. United States: N. p., 2014.
Web. doi:10.1103/PhysRevB.90.220510.
Luo, Yongkang, Zhai, Hui -Fei, Zhang, Pan, Xu, Zhu -An, Cao, Guang -Han, & Thompson, J. D. Pressure-enhanced superconductivity in Eu3Bi2S4F4. United States. https://doi.org/10.1103/PhysRevB.90.220510
Luo, Yongkang, Zhai, Hui -Fei, Zhang, Pan, Xu, Zhu -An, Cao, Guang -Han, and Thompson, J. D. Wed .
"Pressure-enhanced superconductivity in Eu3Bi2S4F4". United States. https://doi.org/10.1103/PhysRevB.90.220510. https://www.osti.gov/servlets/purl/1227732.
@article{osti_1227732,
title = {Pressure-enhanced superconductivity in Eu3Bi2S4F4},
author = {Luo, Yongkang and Zhai, Hui -Fei and Zhang, Pan and Xu, Zhu -An and Cao, Guang -Han and Thompson, J. D.},
abstractNote = {The pressure effect on the newly discovered charge-transferred BiS2-based superconductor, Eu3Bi2S4F4, with a Tc of 1.5 K at ambient pressure, is investigated by transport and magnetic measurements. Accompanied with the enhancement of metallicity under pressures, the onset superconducting transition temperature increases abruptly around 1.0 GPa, reaching ~10.0 K at 2.26 GPa. Alternating current magnetic susceptibility measurements indicate that a new superconducting phase with a higher Tc emerges and dominates at high pressures. In the broad pressure window of 0.68GPa≤p≤2.00 GPa, the high-Tc phase coexists with the low-Tc phase. Hall effect measurements reveal a significant difference in electronic structures between the two superconducting phases. As a result, our work devotes the effort to establish the commonality of pressure effect on the BiS2-based superconductors, and also uncovers the importance of electron carrier density in the high-Tc phase.},
doi = {10.1103/PhysRevB.90.220510},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 22,
volume = 90,
place = {United States},
year = {Wed Dec 17 00:00:00 EST 2014},
month = {Wed Dec 17 00:00:00 EST 2014}
}
Web of Science
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Works referencing / citing this record:
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Pressure-induced enhancement of two-dimensionality in superconductors
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Pressure induced superconductivity bordering a charge-density-wave state in NbTe4 with strong spinorbit coupling
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