Pressure-enhanced superconductivity in
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Zhejiang Univ., Hangzhou (China)
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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- 11190023; AC52-06NA25396
- OSTI ID:
- 1227732
- Report Number(s):
- LA-UR-14-28575; PRBMDO
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 90, Issue 22; ISSN 1098-0121
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Pressure induced superconductivity bordering a charge-density-wave state in NbTe4 with strong spin-orbit coupling
|
journal | April 2018 |
Origin of extremely large magnetoresistance in the candidate type-II Weyl semimetal MoTe2−x
|
journal | September 2018 |
Pressure-induced enhancement of two-dimensionality in superconductors
|
journal | October 2019 |
Pressure induced superconductivity bordering a charge-density-wave state in NbTe4 with strong spinorbit coupling | text | January 2018 |
Similar Records
High-pressure effects on nonfluorinated -based superconductors ( and Th)
Pressure-Induced Superconductivity In Polycrystalline