Published March 2003 | Version v1
Journal article Metadata-only

Temporal changes in magnetic properties of high-density CuO nanoceramics

Creators

Description

We have studied the magnetic properties of nanocrystalline ceramics CuO with grain sizes 5-100 nm. Immediately following fabrication of nanoceramics the low-temperature contribution in magnetic susceptibility χ∼1/T was observed. The peculiarities of χ correlated with the grain sizes. The 'paramagnetic' contribution below 140 K disappeared after 3 years of storage. Temporal changes in the magnetic properties of CuO nanoceramics are discussed in connection with relaxation of defects and grain boundaries

Additional details

Identifiers

PII
S0304885302010521;

Publishing Information

Journal Title
Journal of Magnetism and Magnetic Materials
Journal Volume
258-259
Journal Issue
1-2
Journal Page Range
p. 342-344
ISSN
0304-8853
CODEN
JMMMDC

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
34040432
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CERAMICS; COPPER OXIDES; GRAIN BOUNDARIES; GRAIN SIZE; MAGNETIC SUSCEPTIBILITY; NANOSTRUCTURE; PARAMAGNETISM; RELAXATION; TEMPERATURE RANGE 0065-0273 K
Descriptors DEC
CHALCOGENIDES; COPPER COMPOUNDS; MAGNETIC PROPERTIES; MAGNETISM; MICROSTRUCTURE; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SIZE; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Optional Information

Copyright
Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.