Published April 2005
| Version v1
Journal article
Structure, transport and magnetism of La0.67Ca0.33Mn1-xTaxO3
Creators
- 1. Materials Science Division, Indira Gandhi Centre For Atomic Research, Kalpakkam 603102 (India) and Institute of Metallic Materials, IFW Dresden, Postfach 270116, Dresden 01171 (Germany)
- 2. Institute of Metallic Materials, IFW Dresden, Postfach 270116, Dresden 01171 (Germany)
- 3. Materials Science Division, Indira Gandhi Centre For Atomic Research, Kalpakkam 603102 (India)
Description
For the first time, the effect of Ta5+ substitution at the Mn site of La0.67Ca0.33MnO3 compound is reported. A significant increase in lattice parameters and unit cell expansion indicate larger structural modification upon substitution. The ferromagnetic-metallic ground state is modified to a cluster glass insulator for x>0.03. The observed suppression of the ferromagnetic transition temperature Tc of ∼39K/at% might be the highest reported in Mn-site substituted La0.67Ca0.33MnO3. The well-known effects of changed carrier density, larger average ionic radius at Mn site and dilution of Mn sublattice appear insufficient to explain this strong suppression of TC
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2004.11.291;
- PII
- S0304-8853(04)01564-1;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 290-291
- Journal Page Range
- p. 924-927
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- Joint European magnetic symposia
- Acronym
- JEMS '04
- Dates
- 5-10 Sep 2004
- Place
- Dresden (Germany)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37024841
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CALCIUM COMPOUNDS; CARRIER DENSITY; CHARGED-PARTICLE TRANSPORT; DILUTION; EXPANSION; GLASS; GROUND STATES; INHIBITION; LANTHANUM COMPOUNDS; LATTICE PARAMETERS; MAGNETISM; MANGANESE COMPOUNDS; OXIDES; TANTALUM COMPOUNDS; TANTALUM IONS; TRANSITION TEMPERATURE
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; ENERGY LEVELS; IONS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIATION TRANSPORT; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.