Published December 2007 | Version v1
Journal article Metadata-only

Electron-spin-resonance study on the size effects of La0.7Sr0.3MnO3 nanoparticles

Creators

  • 1. Center for Condensed Matter Sciences, National Taiwan University, 106 Taipei (China)
  • 2. Center for Nanostorage Research, National Taiwan University, 106 Taipei (China)

Description

In this work, a detailed analysis on the electron spin resonance (ESR) spectra within a broad temperature range (80-400 K) is performed for studying the size effects of La0.7Sr0.3MnO3 nanoparticles synthesized by a sol-gel route. Our ESR results reveal that La 0.7Sr0.3MnO3 nanoparticles with grain sizes of 28 and 48 nm have two magnetic states below the Curie temperatures Tc, which is attributed to the different surface states. One is with the aligned surface spins, the other is with the disordered surface spins. (copyright 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssc.200777382

Additional details

Identifiers

DOI
10.1002/pssc.200777382;

Publishing Information

Journal Title
Physica Status Solidi. C, Conferences
Journal Volume
4
Journal Issue
12
Journal Page Range
p. 4404-4407
ISSN
1610-1634

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
39024016
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ELECTRON SPIN RESONANCE; ENERGY LEVELS; GRAIN SIZE; LANDE FACTOR; LANTHANUM OXIDES; MAGNETIZATION; MANGANESE OXIDES; NANOSTRUCTURES; PARTICLE SIZE; PARTICLES; SOL-GEL PROCESS; SPIN ORIENTATION; STRONTIUM OXIDES; SURFACES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; X-RAY DIFFRACTION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; DIMENSIONLESS NUMBERS; LANTHANUM COMPOUNDS; MAGNETIC RESONANCE; MANGANESE COMPOUNDS; MICROSTRUCTURE; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; RESONANCE; SCATTERING; SIZE; STRONTIUM COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
With 4 figs., 7 refs.. SICI: 1610-1634(200712)4:12<4404::AID-PSSC200777382>3.0.TX;2-J