Temperature-dependent magnetization of canted moments in erbium- iron-manganese-boron

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.341577· OSTI ID:6926815

Pinkerton, F E; Fuerst, C D; Meisner, G P

Magnetization as a function of field up to 9 T is reported for Er/sub 2/Fe/sub 14-//sub x/Mn/sub x/B compounds with x = 2 and 2.5 at temperatures T between 4 and 120 K. The noncollinear basal plane moment structure which exists among the Er and transition-metal moments within this temperature regime gives rise to an unusual nonsaturating field-dependent magnetization behavior. The magnetization increases linearly with field up to a field H*, where the slope dM/dH abruptly changes. M(H) is again linear above H*, but with a much steeper slope dM/dHapprox.0.5 ..mu../sub B//formula unit/T. H* increases monotonically with temperature for x = 2, until no slope change is observed at experimentally accessible fields when T = 120 K. In the x = 2.5 sample, H* initially decreases with increasing temperature, and reaches a minimum at 55 K. This behavior appears in a plot of M(T) as a compensation temperature T/sub comp/, that is, as a minimum in the magnetization near 55 K.

• Research Organization: Physics Department, General Motors Research Laboratories, Warren, Michigan 48090-9055
• OSTI ID: 6926815
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:5; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALLOYS
BORON ADDITIONS
BORON ALLOYS
ERBIUM ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETIZATION
MANGANESE ALLOYS
RARE EARTH ALLOYS
VERY LOW TEMPERATURE