Griffiths like phase in nanocrystalline manganite La0.50Ca0.50MnO3 studied by magnetic susceptibility and electron spin resonance

M. Pękała , J. Szydłowska , Krystyna Pękała , V. Drozd

Abstract

The Griffiths like phase embedded into paramagnetic matrix of mixed valence orthorhombic nanocrystalline manganite La0.50Ca0.50MnO3 is experimentally studied by means of sensitive magnetic susceptibility and electron spin resonance. A comparative study of the nano- and polycrystalline manganites indicates the temperature interval of the Griffiths like phase located above the Curie temperature of nanocrystalline one. The upper temperature limit for an existence of Griffiths like phase, revealed by the sensitive electron spin resonance, is 10 K higher than that of the magnetic susceptibility. This proves that the high frequency field is able to excite the relatively smaller magnetic clusters. © 2016 Elsevier B.V. All rights reserved.
Author M. Pękała
M. Pękała,,
-
, J. Szydłowska
J. Szydłowska,,
-
, Krystyna Pękała ZP
Krystyna Pękała,,
- Semiconductors Division
, V. Drozd
V. Drozd,,
-
Journal seriesJournal of Alloys and Compounds, ISSN 0925-8388
Issue year2016
Vol685
Pages237-241
Publication size in sheets0.5
Keywords in EnglishCalcium; Electrospinning; Magnetic moments; Magnetic susceptibility; Magnetism; Manganese oxide; Manganites; Nanocrystals; Nanostructured materials; Paramagnetic resonance; Resonance; Sol-gel process; Sol-gels; Spin dynamics; Temperature, Comparative studies; Griffiths like phase; High frequency field; Magnetic cluster; Nanocrystalline manganites; Nanocrystallines; Temperature intervals; Temperature limits, Electrons
DOIDOI:10.1016/j.jallcom.2016.05.304
URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971667601&partnerID=40&md5=d39144080f3e957079f36491ac012c9c
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 3.133 (2) - 2016=2.919 (5)
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