Fang, MH;
Pham, HM;
Qian, B;
Liu, TJ;
Vehstedt, EK;
Liu, Y;
Spinu, L;
(2008)
Superconductivity close to magnetic instability in Fe(Se 1-xTex)0.82.
Physical Review B
, 78
(22)
, Article 224503. 10.1103/PhysRevB.78.224503.
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Abstract
We report our study of the evolution of superconductivity and the phase diagram of the ternary Fe(Se1-xTex)0.82 (0≤x≤1.0) system. We discovered a superconducting phase with T c,max=14 K in the 0.3<x<1.0 range. This superconducting phase is suppressed when the sample composition approaches the end member FeTe 0.82, which exhibits an incommensurate antiferromagnetic order. We discuss the relationship between the superconductivity and magnetism of this material system in terms of recent results from neutron-scattering measurements. Our results and analyses suggest that superconductivity in this class of Fe-based compounds is associated with magnetic fluctuations and therefore may be unconventional in nature.
| Type: | Article |
|---|---|
| Title: | Superconductivity close to magnetic instability in Fe(Se 1-xTex)0.82 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevB.78.224503 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevB.78.224503 |
| Language: | English |
| Additional information: | ©2008 The American Physical Society. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1464303 |
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