Impurity effects on spin dynamics in magnetic and superconducting iron pnictides and chalcogenides

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

In this article, we summarize the effects of magnetic and nonmagnetic impurities on the spin dynamics in Fe-based superconductors and their parent compounds. The effects of chemical substitution, vacancies, and disorder on the suppression or stabilization of superconductivity and spin-density-wave phases are reviewed in the context of recent neutron-spectroscopy measurements of spin excitations. We also present new results on the structure of magnetic fluctuations in BaFe2As2 single crystals doped with Mn local moments and discuss them in relationship to the previously reported (pi, pi) branch of checkerboard magnetic excitations. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Details

Original languageEnglish
Article number1600162
Number of pages16
JournalPhysica Status Solidi (B): Basic Research
Volume254
Issue number1
Publication statusPublished - 26 Dec 2016
Peer-reviewedYes

External IDs

Scopus 85007351744

Keywords

Keywords

  • iron-based superconductors, Magnetism, superconductivity, ELECTRON-TUNNELING OBSERVATION, GAPLESS SUPERCONDUCTIVITY, WAVE SUPERCONDUCTIVITY, NONMAGNETIC IMPURITIES, ALLOYS, EXCITATIONS, NEUTRON, DEPENDENCE, TRANSPORT, DISORDER

Library keywords