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

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

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

OriginalspracheEnglisch
Aufsatznummer1600162
Seitenumfang16
FachzeitschriftPhysica Status Solidi (B): Basic Research
Jahrgang254
Ausgabenummer1
PublikationsstatusVeröffentlicht - 26 Dez. 2016
Peer-Review-StatusJa

Externe IDs

Scopus 85007351744

Schlagworte

Schlagwörter

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

Bibliotheksschlagworte