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Cluster superconductivity in the magnetoelectric Pb(Fe.sub.1/2./sub.Sb.sub.1/2./sub.)O.sub.3./sub. ceramics
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SYSNO ASEP 0479506 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Cluster superconductivity in the magnetoelectric Pb(Fe1/2Sb1/2)O3 ceramics Author(s) Laguta, Valentyn (FZU-D) RID, ORCID
Maryško, Miroslav (FZU-D) RID
Stephanovich, V. A. (PL)
Raevsky, I.P. (RU)
Olekhnovich, N.M. (BY)
Pushkarev, A.V. (BY)
Radyush, Yu.V. (BY)
Raevskaya, S. I. (RU)
Kuzian, R. O. (UA)
Chlan, V. (CZ)
Štěpánková, H. (CZ)Number of authors 11 Source Title Acta Physica Polonica A. - : Polska Akademia Nauk - ISSN 0587-4246
Roč. 131, č. 6 (2017), s. 1534-1539Number of pages 5 s. Language eng - English Country PL - Poland Keywords multiferroics ; superconductivity Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects LO1409 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015088 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA13-11473S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000405380300021 EID SCOPUS 85023193175 DOI 10.12693/APhysPolA.131.1534 Annotation The observation of cluster (local) superconductivity in the magnetoelectric Pb(Fe1/2Sb1/2)O3 ceramics prepared at a hydrostatic pressure of 6 GPa and temperatures 1200-1800 K to stabilize the perovskite phase is reported for the first time. The superconductivity is manifested by an abrupt drop of the magnetic susceptibility at the critical temperature TC = 7 K. Both the magnitude of this drop and TC decrease with magnetic field increase. Similarly, the low-field paramagnetic absorption measured by EPR spectrometer drops significantly below TC as well. The observed effects and their critical magnetic field dependence are interpreted as manifestation of the superconductivity and Meissner effect in metallic Pb nanoclusters existing in the ceramics. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2018
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