Magnetic inhomogeneities in crystalline bulk and nanometer sized la 0.7Ca0.3MnO3: ESR probing

E. Rozenberg, A. I. Shames, G. Jung, Ya M. Mukovskii, E. Sominski, A. Gedanken, Cheol Eui Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Electron spin resonance was studied on three (two bulk and one nanometer sized) samples of the same La0.7Ca0.3MnO3 manganite compound aiming to compare their magnetic homogeneities. The results obtained show that both ceramic and single crystalline bulk samples are less homogeneous than nanocrystalline one. Except for higher homogeneity, the nano sample demonstrates also a weaker magnetic anisotropy. As a result, well pronounced coexistence of different magnetic phases (coexistence of ferromagnetic and paramagnetic resonance signals) is observed in bulk samples, while it is absent in nano. It is suggested that such strong difference is directly connected to the difference in structural state of the samples.

Original languageEnglish
Pages (from-to)4554-4557
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume244
Issue number12
DOIs
Publication statusPublished - 2007 Dec 1

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Paramagnetic resonance
inhomogeneity
Crystalline materials
Ferromagnetic resonance
Magnetic anisotropy
homogeneity
paramagnetic resonance
ferromagnetic resonance
electron paramagnetic resonance
ceramics
anisotropy
manganite

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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Magnetic inhomogeneities in crystalline bulk and nanometer sized la 0.7Ca0.3MnO3 : ESR probing. / Rozenberg, E.; Shames, A. I.; Jung, G.; Mukovskii, Ya M.; Sominski, E.; Gedanken, A.; Lee, Cheol Eui.

In: Physica Status Solidi (B) Basic Research, Vol. 244, No. 12, 01.12.2007, p. 4554-4557.

Research output: Contribution to journalArticle

Rozenberg, E. ; Shames, A. I. ; Jung, G. ; Mukovskii, Ya M. ; Sominski, E. ; Gedanken, A. ; Lee, Cheol Eui. / Magnetic inhomogeneities in crystalline bulk and nanometer sized la 0.7Ca0.3MnO3 : ESR probing. In: Physica Status Solidi (B) Basic Research. 2007 ; Vol. 244, No. 12. pp. 4554-4557.
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