Discovery of orbital-selective Cooper pairing in FeSe-Reference-Cited by-同舟云学术

Discovery of orbital-selective Cooper pairing in FeSe

Published:2017-07-07 Issue:6346 Volume:357 Page:75-80
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Sprau P. O.¹²^ORCID,Kostin A.¹²,Kreisel A.³⁴,Böhmer A. E.⁵,Taufour V.⁵,Canfield P. C.⁵⁶,Mukherjee S.⁷,Hirschfeld P. J.⁸^ORCID,Andersen B. M.³,Davis J. C. Séamus¹²⁹¹⁰^ORCID

Affiliation:

1. Laboratory of Atomic and Solid State Physics, Department of Physics, Cornell University, Ithaca, NY 14853, USA.

2. Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA.

3. Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK 2100 Copenhagen, Denmark.

4. Institut für Theoretische Physik, Universität Leipzig, D-04103 Leipzig, Germany.

5. Ames Laboratory, U.S. Department of Energy, Ames, IA 50011, USA.

6. Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA.

7. Department of Physics, Binghamton University–State University of New York, Binghamton, NY, USA.

8. Department of Physics, University of Florida, Gainesville, FL 32611, USA.

9. School of Physics and Astronomy, University of St Andrews, Fife KY16 9SS, Scotland.

10. Tyndall National Institute, University College Cork, Cork T12R5C, Ireland.

Abstract

A deeper look into iron selenide In the past 10 years, iron-based superconductors have created more puzzles than they have helped resolve. Some of the most fundamental outstanding questions are how strong the interactions are and what the electron pairing mechanism is. Now two groups have made contributions toward resolving these questions in the intriguing compound iron selenide (FeSe) (see the Perspective by Lee). Gerber et al. used photoemission spectroscopy coupled with x-ray diffraction to find that FeSe has a very sizable electron-phonon interaction. Quasiparticle interference imaging helped Sprau et al. determine the shape of the superconducting gap and find that the electron pairing in FeSe is orbital-selective. Science , this issue p. 71 , p. 75 ; see also p. 32

Funder

U.S. Department of Energy

Gordon and Betty Moore Foundation

Lundbeckfonden

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference62 articles.

1. High-temperature superconductivity in iron-based materials

2. Gap symmetry and structure of Fe-based superconductors

3. The Electron-Pairing Mechanism of Iron-Based Superconductors