Published August 1, 2005 | Version v1
Journal article Metadata-only

Strong orbital correlations in a Fe-substituted spin-glass-manganite

Creators

  • 1. Laboratorio Nacional de Luz Sincrotron, C.P. 6192, 13084-971, Campinas, SP (Brazil)
  • 2. Instituto de Fisica 'Gleb Wataghin', UNICAMP, C.P. 6165, 13083-970, Campinas, SP (Brazil)
  • 3. Center for Superconductivity Research, University of Maryland, College Park, Maryland 20742 (United States)
  • 4. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)
  • 5. Institute of Solid State and Semiconductor Physics, Academy of Sciences, 220072 Minsk (Belarus)

Description

The compound La0.66Ba0.40Mn0.61Fe0.33O3 shows anisotropic magnetic correlations with no long-range order. Specific heat measurements suggest these correlations represent the bulk. Orbital correlations of Mn3+eg electrons, surviving in an environment of largely disordered exchange interactions, are invoked to account for this magnetic state. These results argue in favor of a strain-field mechanism for orbital ordering in manganites

Additional details

Identifiers

DOI
10.1103/PhysRevB.72.052406;

Publishing Information

Journal Title
Physical Review. B, Condensed Matter and Materials Physics
Journal Volume
72
Journal Issue
5
Journal Page Range
p. 052406-052406.4
ISSN
1098-0121

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37031546
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Descriptors DEI
ANISOTROPY; BARIUM COMPOUNDS; ELECTRON CORRELATION; ELECTRONS; EXCHANGE INTERACTIONS; IRON OXIDES; LANTHANUM COMPOUNDS; MANGANESE COMPOUNDS; MANGANESE IONS; SPECIFIC HEAT; SPIN GLASS STATE; STRAINS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; CORRELATIONS; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; IONS; IRON COMPOUNDS; LEPTONS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
(c) 2005 The American Physical Society