Field-induced spin reorientation in erbium-iron-manganese-boron

Journal Article · Mon Jun 20 04:00:00 EDT 1988 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.99765· OSTI ID:5222393

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

Er/sub 2/Fe/sub 14/B undergoes a spin reorientation from a low-temperature planar moment orientation to a high-temperature axial orientation at T/sub s/ = 336 K. We report for the first time that the planar to axial reorientation can be induced at temperatures below T/sub s/ by applying a sufficiently large magnetic field. Room-temperature reorientation in Er/sub 2/Fe/sub 14/B is induced at a field of about 120 kOe. Investigation of Er/sub 2/Fe/sub 14/..sqrt../sub x/Mn/sub x/B compounds shows that the field required to induce reorientation decreases as T approaches T/sub s/ from below. The magnetic moment is larger in the axial orientation than in the planar orientation; hence, reorientation occurs at the field where the magnetostatic energy gained by the larger axial moment overcomes the unfavorable anisotropy energy at temperatures near T/sub s/.

• Research Organization: Physics Department, General Motors Research Laboratories, Warren, Michigan 48090-9055
• OSTI ID: 5222393
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 52:25; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
ERBIUM ALLOYS
IRON ALLOYS
IRON BASE ALLOYS
MAGNETIC FIELDS
MAGNETIC MOMENTS
MEDIUM TEMPERATURE
ORIENTATION
RARE EARTH ALLOYS
SPIN ORIENTATION