Published April 30, 2005 | Version v1
Journal article Metadata-only

Novel phase transitions in B-site doped manganites

Creators

  • 1. Institute of Physics, P.O. Box 68, 11080 Belgrade/Zemun (Serbia and Montenegro)
  • 2. Materials Science Institute, University of Valencia, P.O. Box 22085, 46071 Valencia (Spain)
  • 3. Kamerlingh Onnes Laboratorium, Leiden University, Postbus 9504, 2300 RA Leiden (Netherlands)

Description

We have examined the infrared reflectivity and the electrical resistivity of La1-x [Sr(Ba)] x Mn1-z [Cu(Zn)] z O3 samples in ferromagnetic metallic and insulator regime. Several phase transitions are observed, the most obvious being the transition from a ferromagnetic metallic to a ferromagnetic insulator phase that is related to the formation of short-range orbitally ordered domains. The temperature T 1 of the phase transition is dependent on doping concentration and for optimally doped samples (∼32% of Mn4+ ions) we have found T 1∼0.93 T C

Additional details

Identifiers

DOI
10.1016/j.physb.2005.01.355;
PII
S0921-4526(05)00396-0;

Publishing Information

Journal Title
Physica. B, Condensed Matter
Journal Volume
359-361
Journal Page Range
p. 1276-1278
ISSN
0921-4526
CODEN
PHYBE3

Conference

Title
International conference on strongly correlated electron systems
Acronym
SCES '04
Dates
26-30 Jul 2004
Place
Karlsruhe (Germany)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37068044
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BARIUM COMPOUNDS; COPPER COMPOUNDS; DOMAIN STRUCTURE; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; FERROMAGNETIC MATERIALS; FERROMAGNETISM; INFRARED SPECTRA; LANTHANUM COMPOUNDS; MANGANATES; MANGANESE IONS; PHASE TRANSFORMATIONS; REFLECTIVITY; STRONTIUM COMPOUNDS; TEMPERATURE DEPENDENCE; ZINC COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; ELECTRICAL PROPERTIES; IONS; MAGNETIC MATERIALS; MAGNETISM; MANGANESE COMPOUNDS; MATERIALS; OPTICAL PROPERTIES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SPECTRA; SURFACE PROPERTIES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.