Published September 1, 2009
| Version v1
Journal article
Neutron depolarization study on the magnetic correlation length of nickel ferrite with different packing densities
Creators
- 1. Institute of Nucelar Engineering and Science, National Tsing Hua University, Hsinchu, Taiwan (China)
- 2. Department of Engineering and System Science, National Tsing Hua University, Hsinchu, Taiwan (China)
- 3. Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan (China)
- 4. Juelich Centre for Neutron Science (JCNS), Forschungszentrum Juelich Outstation at FRM-II, Garching (Germany)
- 5. Institut fuer Festkoerperforschung, Forschungszentrum Juelich GmbH (Germany)
Description
The magnetic correlation length of a mixed nickel ferrite powder was studied by a newly commissioned depolarized neutron beamline at the W3 port of Tsing Hua Open Pool Reactor (THOR). In this work, Ni ferrite powder samples with different packing densities were studied. The magnetic correlation lengths of the sample were observed to be 2 μm at virgin state and about 3.1 μm at remanent state from the packing density of 20-60%. This magnetic domain size is smaller than particle size. No significant change of domain size at this packing density implies the domain wall motion is hindered by the porosity effectively up to at least 60% of packing density.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physb.2009.06.023Additional details
Identifiers
- DOI
- 10.1016/j.physb.2009.06.023;
- PII
- S0921-4526(09)00375-5;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 404
- Journal Issue
- 17
- Journal Page Range
- p. 2565-2567
- ISSN
- 0921-4526
- CODEN
- PHYBE3
Conference
- Title
- 7. international workshop on polarized neutrons for condensed matter investigations; 2. international symposium of Quantum Beam Science Directorate
- Dates
- 1-5 Sep 2008
- Place
- Tokai (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41085227
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CORRELATIONS; DENSITY; DEPOLARIZATION; ERRORS; FERRITES; HARBORS; LENGTH; NEUTRON DENSITY; NEUTRONS; NICKEL; NICKEL COMPOUNDS; PACKINGS; PARTICLE SIZE; POLARIZATION; PONDS; POROSITY; POWDERS; STOWING; WALLS
- Descriptors DEC
- BARYONS; DIMENSIONS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; FERRIMAGNETIC MATERIALS; HADRONS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; METALS; NUCLEONS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SIZE; SURFACE WATERS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.