Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101710
Title: Short-Lived Electron Excitations in FeTe1 – xSex as Revealed by Microwave Absorption
Authors: Gimazov, I. I.
Lyadov, N. M.
Chareev, D. A.
Vasiliev, A. N.
Talanov, Y. I.
Issue Date: 2019
Publisher: Pleiades Publishing
Citation: Short-Lived Electron Excitations in FeTe1 – xSex as Revealed by Microwave Absorption / I. I. Gimazov, N. M. Lyadov, D. A. Chareev, et al. — DOI 10.1134/S1063776119060013 // Journal of Experimental and Theoretical Physics. — 2019. — Vol. 129. — Iss. 1. — P. 81-85.
Abstract: Abstract: The Fe1 + yTe1 – xSex single crystals with the various Se/Te ratios were studied by the microwave absorption and direct current resistivity measurements. The comparison of the microwave absorption data and the resistivity versus temperature made it possible to separate the contributions of two types of spin fluctuations. One of them is due to the anisotropic magnetic (nematic) fluctuations. It is observed over the wide temperature range from ~30 to 150 or 200 K. In FeSe it has the maximum close to the structural transition temperature. Another MWA anomaly is located in the narrow temperature range above the superconducting transition. It is likely due to the antiferromagnetic fluctuations. Annealing of a sample at the temperature around 300°C in the oxygen atmosphere made it possible to exclude the effect of excess iron on the observed anomalies. © 2019, Pleiades Publishing, Inc.
Keywords: IRON COMPOUNDS
SELENIUM COMPOUNDS
SINGLE CRYSTALS
SPIN FLUCTUATIONS
SUPERCONDUCTING TRANSITION TEMPERATURE
TELLURIUM COMPOUNDS
ANTI-FERROMAGNETIC FLUCTUATIONS
ELECTRON EXCITATIONS
MICROWAVE ABSORPTION
NARROW TEMPERATURE RANGES
OXYGEN ATMOSPHERE
STRUCTURAL TRANSITION TEMPERATURE
SUPERCONDUCTING TRANSITIONS
WIDE TEMPERATURE RANGES
ATMOSPHERIC TEMPERATURE
URI: http://hdl.handle.net/10995/101710
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85071646107
PURE ID: 10774633
c213ca98-ad88-48e3-9798-367834cfc7c2
ISSN: 10637761
DOI: 10.1134/S1063776119060013
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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