A new type of spin ordering in a random magnet with competing anisotropies

Conference · Thu Dec 31 00:00:00 EST 1992

OSTI ID:10142902

Katsumata, K ^[1]; Shapiro, S M; Matsuda, M; Shirane, G ^[2]; Tuchendler, J ^[3]

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1. Institute of Physical and Chemical Research, Wako, Saitama (Japan)
2. Brookhaven National Lab., Upton, NY (United States)
3. Paris-6 Univ., 75 (France). Lab. de Dispositifs Infrarouge

The result of an elastic neutron scattering study of the phase transition in the random magnet with competing anisotropies Fe{sub 0.75}CO{sub 0.25}Br{sub 2} is reported. We found that the ordering of the spin component parallel to the crystalline c axis at the transition from the paramagnetic to antiferromagnetic phase induces an ordering of the spin component perpendicular to it. Thus, there is no boundary separating the higher temperature antiferromagnetic and lower temperature mixed ordering phase. We interpret this new type of spin ordering as arising from a coupling between the orthogonal spin components.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); US-Japan Cooperative Neutron Scattering Program
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 10142902
• Report Number(s): BNL-48496; CONF-921201-14; ON: DE93009344; TRN: 93:009610
• Resource Relation: Conference: 37. annual conference on magnetism and magnetic materials,Houston, TX (United States),1-4 Dec 1992; Other Information: PBD: [1992]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
MAGNETS
ORDER-DISORDER TRANSFORMATIONS
NEUTRON DIFFRACTION
SPIN
ELASTIC SCATTERING
IRON BASE ALLOYS
COBALT ALLOYS
BROMINE COMPOUNDS
ANTIFERROMAGNETISM
360102
665000
STRUCTURE AND PHASE STUDIES
PHYSICS OF CONDENSED MATTER