Published December 2007 | Version v1
Journal article Metadata-only

Magnetic inhomogeneities in crystalline bulk and nanometer sized La0.7Ca0.3MnO3: ESR probing

Creators

  • 1. Department of Physics, BGU of the Negev, Beer-Sheva 84105 (Israel)
  • 2. Moscow Steel and Alloys Institute, Leninskii prosp. 4, Moscow 119049 (Russian Federation)
  • 3. Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900 (Israel)
  • 4. Department of Physics, Korea University, 1.5-ka, Anam-dong, Sungbuk-ku, Seoul 136-701 (Korea, Republic of)

Description

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 nano-crystalline 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. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssb.200777419

Additional details

Identifiers

DOI
10.1002/pssb.200777419;

Publishing Information

Journal Title
Physica Status Solidi. B, Basic Research
Journal Volume
244
Journal Issue
12
Journal Page Range
p. 4554-4557
ISSN
0370-1972
CODEN
PSSBBD

Conference

Title
International symposium on advanced magnetic materials and applications (ISAMMA 2007)
Dates
28 May - 1 Jun 2007
Place
Jeju (Korea, Republic of)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39024028
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ANISOTROPY; CALCIUM OXIDES; CERAMICS; CURIE POINT; ELECTRON SPIN RESONANCE; EXPERIMENTAL DATA; FERROMAGNETISM; LANTHANUM OXIDES; LATTICE PARAMETERS; MANGANESE OXIDES; MONOCRYSTALS; NANOSTRUCTURES; ORTHORHOMBIC LATTICES; PARAMAGNETISM; SPECTRA; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; X-RAY DIFFRACTION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; DATA; DIFFRACTION; INFORMATION; LANTHANUM COMPOUNDS; MAGNETIC RESONANCE; MAGNETISM; MANGANESE COMPOUNDS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; RESONANCE; SCATTERING; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE

Optional Information

Notes
With 2 figs., 1 tab., 16 refs.. SICI: 0370-1972(200712)244:12<4554::AID-PSSB200777419>3.0.TX;2-F