Published January 12, 2005 | Version v1
Journal article Metadata-only

Giant volume magnetostriction and colossal magnetoresistance at room temperature in La0.7Ba0.3MnO3

Creators

  • 1. M V Lomonosov Moscow State University, Leninskie Gory, 119992 Moscow (Russian Federation)
  • 2. Moscow State Steel and Alloys Institute, Leninskii street 4, 119049 Moscow (Russian Federation)

Description

Giant volume magnetostriction at room temperature is found for the first time in a La0.7Ba0.3MnO3 single crystal, achieving 2.54 x 10-4 in a magnetic field of 8.2 kOe. An even greater value of the volume magnetostriction, equal to 4 x 10-4 in the same magnetic field, is observed at the Curie point TC = 310 K.Volume magnetostriction and magnetoresistance exhibit similar dependences on temperature and magnetic field in the TC-region, that is explained by the presence in this compound of a magnetic two-phase ferromagnetic-antiferromagnetic state due to strong s-d exchange

Availability note (English)

Available online at http://stacks.iop.org/0953-8984/17/221/cm5_1_020.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-8984/17/221/cm5_1_020.pdf; http://www.iop.org/;
DOI
10.1088/0953-8984/17/1/020;
PII
S0953-8984(05)82183-6;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
17
Journal Issue
1
Journal Page Range
p. 221-226
ISSN
0953-8984
CODEN
JCOMEL

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36035587
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Descriptors DEI
ANTIFERROMAGNETISM; BARIUM COMPOUNDS; CURIE POINT; LANTHANUM COMPOUNDS; MAGNETIC FIELDS; MAGNETORESISTANCE; MAGNETOSTRICTION; MANGANATES; MONOCRYSTALS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CRYSTALS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; MAGNETIC PROPERTIES; MAGNETISM; MANGANESE COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE