Impurity effects on spin dynamics in magnetic and superconducting iron pnictides and chalcogenides
Research output: Contribution to journal › Research article › Contributed › peer-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 language | English |
|---|---|
| Article number | 1600162 |
| Number of pages | 16 |
| Journal | Physica Status Solidi (B): Basic Research |
| Volume | 254 |
| Issue number | 1 |
| Publication status | Published - 26 Dec 2016 |
| Peer-reviewed | Yes |
External IDs
| Scopus | 85007351744 |
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Keywords
Keywords
- iron-based superconductors, Magnetism, superconductivity, ELECTRON-TUNNELING OBSERVATION, GAPLESS SUPERCONDUCTIVITY, WAVE SUPERCONDUCTIVITY, NONMAGNETIC IMPURITIES, ALLOYS, EXCITATIONS, NEUTRON, DEPENDENCE, TRANSPORT, DISORDER