Spin reorientation phenomenon in Nd sub 0. 5 Er sub 1. 5 Fe sub 14 minus x M sub x B (M=Al and Co), as determined by ac susceptibility measurements

Journal Article · Tue May 01 04:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344848· OSTI ID:6837177

Malik, S K; Adroja, D T ^[1]; Ma, B M; Boltich, E B; Sohn, J G; Sankar, S G; Wallace, W E ^[2]

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1. Tata Institute of Fundamental Research, Bombay 400 005, India (IN)
2. MEMS Department and Magnetic Technology Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (USA)

Spin reorientation transitions (SRTs) in Nd{sub 0.5}Er{sub 1.5}Fe{sub 14{minus}{ital x}}M{sub {ital x}}B, where M=Al or Co and {ital x}=0--3, were determined by ac susceptibility measurements. In Nd{sub 0.5}Er{sub 1.5}Fe{sub 14}B, the SRT is observed at about 195 K. The addition of Al was found to shift the SRT to lower temperatures, presumably due to the weakening of the rare earth--transition metal exchange interaction. For M being Al and {ital x}=2, an additional SRT is observed at about 25 K, possibly due to a change of cone angle. Similar reductions in the SRT temperature were observed with Co substitution.

• OSTI ID: 6837177
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 67:9; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALTERNATING CURRENT
ALUMINIUM BORIDES
ALUMINIUM COMPOUNDS
BORIDES
BORON COMPOUNDS
COBALT BORIDES
COBALT COMPOUNDS
CURRENTS
ELECTRIC CURRENTS
ERBIUM BORIDES
ERBIUM COMPOUNDS
EXCHANGE INTERACTIONS
INTERACTIONS
IRON BORIDES
IRON COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NEODYMIUM BORIDES
NEODYMIUM COMPOUNDS
ORIENTATION
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPIN ORIENTATION
TRANSITION ELEMENT COMPOUNDS
VERY LOW TEMPERATURE