Published August 9, 2006 | Version v1
Journal article Metadata-only

Evidence for spin-glass states and Griffiths singularities in Nd0.75Sr1.25CoO4

Creators

  • 1. Structure Research Laboratory and Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)

Description

The magnetic properties of Nd0.75Sr1.25CoO4 have been investigated by means of dc magnetization, ac susceptibility and electron spin resonance measurements. The specimen presented a deviation from the Curie-Weiss law at TG∼230 K, ferromagnetic behaviour below TC∼179 K, and a cusp structure at TSG∼18 K in dc magnetization. The cusp was confirmed to be due to the existence of spin-glass states, and the deviation was argued to be a Griffiths singularity. Comparing the magnetic properties of the analogous layered cobalt oxides, the anomalous magnetic features of the specimen were attributed to the introduction of rare-earth ions, Nd3+

Availability note (English)

Available online at http://stacks.iop.org/0953-8984/18/7135/cm6_31_008.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/0953-8984/18/7135/cm6_31_008.pdf; http://www.iop.org/;
DOI
10.1088/0953-8984/18/31/008;
PII
S0953-8984(06)20425-9;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
18
Journal Issue
31
Journal Page Range
p. 7135-7144
ISSN
0953-8984
CODEN
JCOMEL

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38012554
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
COBALT OXIDES; CURIE-WEISS LAW; ELECTRON SPIN RESONANCE; FERROMAGNETISM; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; NEODYMIUM COMPOUNDS; NEODYMIUM IONS; SINGULARITY; SPIN GLASS STATE; STRONTIUM COMPOUNDS; TEMPERATURE DEPENDENCE
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; COBALT COMPOUNDS; IONS; MAGNETIC PROPERTIES; MAGNETIC RESONANCE; MAGNETISM; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; RESONANCE; TRANSITION ELEMENT COMPOUNDS