Macroscopic phase segregation in superconducting K0.73Fe1.67Se2 as seen by muon spin rotation and infrared spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F12%3A00069267" target="_blank" >RIV/00216224:14740/12:00069267 - isvavai.cz</a>
Result on the web
<a href="http://prb.aps.org/pdf/PRB/v85/i21/e214503" target="_blank" >http://prb.aps.org/pdf/PRB/v85/i21/e214503</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.85.214503" target="_blank" >10.1103/PhysRevB.85.214503</a>

Result language
angličtina
Original language name
Macroscopic phase segregation in superconducting K0.73Fe1.67Se2 as seen by muon spin rotation and infrared spectroscopy
Original language description
Using muon spin rotation and infrared spectroscopy, we investigated the recently discovered superconductor K0.73Fe1.67Se2 with T-c approximate to 32 K. We show that the combined data can be consistently described in terms of a macroscopically phase-segregated state with a matrix of similar to 88% volume fraction that is insulating and strongly magnetic and inclusions with an similar to 12% volume fraction, which are metallic, superconducting, and nonmagnetic. The electronic properties of the latter, interms of the normal state plasma frequency and the superconducting condensate density, appear to be similar as in other iron selenide or arsenide superconductors.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: Central european institute of technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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