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Magnetic susceptibility and electron magnetic resonance study of monovalent potassium doped manganites Pr0.6Sr0.4-xK xMnO3

Thaljaoui, R and Pȩkała, K and Pȩkała, M and Boujelben, W and Szydłowska, J and Fagnard, J-F and Vanderbemden, P and Cheikhrouhou, A (2013) Magnetic susceptibility and electron magnetic resonance study of monovalent potassium doped manganites Pr0.6Sr0.4-xK xMnO3. Journal of Alloys and Compounds, 580. pp. 137-142. ISSN 0925-8388

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Abstract

The monovalent potassium doped manganites Pr0.6Sr 0.4-xKxMnO3 (x = 0.05-0.2) are characterized using the complementary magnetic susceptibility and electron resonance methods. In paramagnetic phase the temperature variations of the inverse magnetic susceptibility and the inverse intensity of resonance signal obey the Curie-Weiss law. A similarity in temperature variation of resonance signal width and the adiabatic polaron conductivity points to the polaron mechanism controlling the resonance linewidth. The low temperature limit of the pure paramagnetic phase is determined from the electron resonance spectra revealing the mixed phase spread down to the Curie temperature. © 2013 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Adiabatic polaron conductivity Curie temperature Electron magnetic resonance Magnetic susceptibility Orthorhombic mixed valence manganites
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:09
Last Modified: 08 Dec 2014 02:17
DOI: 10.1016/j.jallcom.2013.05.001