First-order field-induced magnetization transitions in single-crystal Nd/sub 2/Fe/sub 14/B

Journal Article · Wed Jul 15 04:00:00 EDT 1987 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.339789· OSTI ID:6512164

Bolzoni, F; Moze, O; Pareti, L

Magnetization measurements in high-pulsed magnetic fields have revealed the presence of magnetic anisotropy in the hard basal plane of a single crystal of Nd/sub 2/Fe/sub 14/B. A discontinuity in the magnetization occurs when the magnetic field is applied along the (100) direction in the hard basal plane below 220 K while there is a regular approach to saturation magnetization along the (110) direction. This discontinuity has been interpreted as a first-order magnetization process. High-order terms in the free energy are required to account for the spin reorientation transition from easy axis to easy cone and first-order magnetization process. The temperature dependence of the uniaxial and planar anisotropy energy constants has been determined.

• Research Organization: Institute Maspec, Via Chiavari 18/A, 43100 Parma, Italy
• OSTI ID: 6512164
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 62:2; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
CRYSTALS
IRON ALLOYS
IRON BASE ALLOYS
MAGNETIZATION
MONOCRYSTALS
NEODYMIUM ALLOYS
ORIENTATION
RARE EARTH ALLOYS
SPIN ORIENTATION
TEMPERATURE DEPENDENCE