English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Impurity-induced bound states inside the superconducting gap of FeSe

Jiao, L., Rößler, S., Koz, C., Schwarz, U., Kasinathan, D., Rößler, U. K., et al. (2017). Impurity-induced bound states inside the superconducting gap of FeSe. Physical Review B, 96(9): 094504, pp. 1-7. doi:10.1103/PhysRevB.96.094504.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-F531-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-F538-8
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Jiao, Lin1, Author              
Rößler, Sahana1, Author              
Koz, Cevriye2, Author              
Schwarz, Ulrich3, Author              
Kasinathan, Deepa1, Author              
Rößler, Ulrich K.4, Author
Wirth, Steffen5, Author              
Affiliations:
1Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
2Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
3Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863423              
4External Organizations, ou_persistent22              
5Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863460              

Content

show
hide
Free keywords: -
 Abstract: We investigate the local density of states in the vicinity of a native dumbbell defect arising from an Fe vacancy in FeSe single crystals. The tunneling spectra close to the impurity display two bound states inside the superconducting gap, equally spaced with respect to zero energy but asymmetric in amplitude. Using spinpolarized density functional theory calculations on realistic slab models with an Fe vacancy, we show that such a defect does not induce a local magnetic moment. Therefore, the dumbbell defect is considered as nonmagnetic. Thus, the in-gap bound states emerging from a nonmagnetic defect-induced pair breaking suggest a sign-changing pairing state in this material.

Details

show
hide
Language(s): eng - English
 Dates: 2017-09-072017-09-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 96 (9) Sequence Number: 094504 Start / End Page: 1 - 7 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008