Published November 2001 | Version v1
Journal article Metadata-only

Superparamagnetism in Heterogeneous AgFe Thin Films - A Low Energy μSR Study

Creators

  • 1. University of Birmingham, School of Engineering (United Kingdom)
  • 2. Paul Scherrer Institut, Labor fuer Myonspinspektroskopie (Switzerland)
  • 3. Universitaet Konstanz, Fakultaet fuer Physik (Germany)
  • 4. Technische Universitaet Braunschweig, IMNF (Germany)
  • 5. Universitaet Zuerich (Switzerland)
  • 6. University of Leicester, Department of Physics and Astronomy (United Kingdom)

Description

This paper describes a study of superparamagnetism in iron nanoclusters using low energy μSR, including for the first time zero field measurements, which yield an intrinsic nanocluster superparamagnetic relaxation rate of ν0=67±15 MHz and an energy barrier of ΔE=37±4 K. TEM micrographs of the embedded clusters show there to be a range of shapes and also sizes, which is bourne out by SQUID magnetometry measurements.

Additional details

Identifiers

DOI
10.1023/A:1020529531039;

Publishing Information

Journal Title
Hyperfine Interactions
Journal Volume
136-137
Journal Issue
3-8
Journal Page Range
p. 403-408
ISSN
0304-3843
CODEN
HYINDN

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43023551
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALLOYS; IRON; IRON COMPOUNDS; MAGNETOMETERS; MUON SPIN RELAXATION; NANOSTRUCTURES; RELAXATION; SILVER COMPOUNDS; SQUID DEVICES; SUPERPARAMAGNETISM; TEMPERATURE RANGE 0013-0065 K; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY
Descriptors DEC
ELECTRON MICROSCOPY; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FILMS; FLUXMETERS; MAGNETISM; MEASURING INSTRUMENTS; METALS; MICROSCOPY; MICROWAVE EQUIPMENT; RELAXATION; SUPERCONDUCTING DEVICES; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2001 Kluwer Academic Publishers