Magnetic field dependence of 11B and 57Fe NMR in a Nd2Fe14B compound (abstract)
Creators
- 1. Department of Physics and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06268
Description
The 10B, 11B, and 57Fe spin-echo nuclear magnetic resonance (NMR) and magnetization experiments have been performed for naturally abundant and 10B-enriched Nd2Fe14B at 1.3 and 4.2 K for frequencies from 10 to 80 MHz. It was found from a comparison of NMR spectra in zero field and in an external field of 6.0 kOe that the hyperfine fields at the domain edges and at the domain-wall centers are nearly the same. This implies that the Fe hyperfine field anisotropy is small in this system. The presence of spin canting was verified by the result that the 11B NMR frequency shift due to the applied external magnetic field does not exactly follow γ(11B)ΔH. The NMR technique proves to be sensitive in detecting the trace of Fe precipitate in the Nd-Fe-B permanent magnets
Additional details
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 64
- Journal Issue
- 10
- Series
- J. Appl. Phys.
- Journal Page Range
- 5586
- ISSN
- 0021-8979
- CODEN
- JAPIA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20015159
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BORON 11; IRON BORIDES; IRON 57; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETIZATION; MHZ RANGE 01-100; NEODYMIUM BORIDES; NUCLEAR MAGNETIC RESONANCE; PERMANENT MAGNETS; ULTRALOW TEMPERATURE
- Descriptors DEC
- BORIDES; BORON COMPOUNDS; BORON ISOTOPES; EQUIPMENT; EVEN-ODD NUCLEI; FREQUENCY RANGE; INTERMEDIATE MASS NUCLEI; IRON COMPOUNDS; IRON ISOTOPES; ISOTOPES; LIGHT NUCLEI; MAGNETIC MOMENTS; MAGNETIC RESONANCE; MAGNETS; MHZ RANGE; NEODYMIUM COMPOUNDS; NUCLEI; ODD-EVEN NUCLEI; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; RESONANCE; STABLE ISOTOPES; TRANSITION ELEMENT COMPOUNDS