Spin-wave evolution crossing from the ferromagnetic to spin-glass regime of Fe/sub x/Cr/sub 1-x/

Journal Article · Mon Aug 11 00:00:00 EDT 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.45.474· OSTI ID:5076388

Fincher, Jr, C R; Shapiro, S M; Palumbo, A H; Parks, R D

Inelastic-neutron-scattering studies on Fe/sub x/Cr/sub 1-x/ for x=0.34 and 0.26 reveal well-defined spin-wave excitations in the ferromagnetic regime and show a significant decrease of the spin-wave stiffness as the temperature is lowered towards the micromagnetic or spin-glass regime. Within the spin-glass phase, no well-defined excitations are seen, but an intense quasielastic peak is observed.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• DOE Contract Number: DE-AC02-76CH00016
• OSTI ID: 5076388
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 45:6
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM ALLOYS
NEUTRON DIFFRACTION
SPIN WAVES
IRON ALLOYS
CROSS SECTIONS
DISPERSION RELATIONS
EXPERIMENTAL DATA
FERROMAGNETISM
INELASTIC SCATTERING
LOW TEMPERATURE
MAGNONS
MEDIUM TEMPERATURE
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
POLYCRYSTALS
SPIN GLASS STATE
TEMPERATURE DEPENDENCE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
ALLOYS
COHERENT SCATTERING
CRYSTALS
DATA
DIAGRAMS
DIFFRACTION
INFORMATION
MAGNETISM
NUMERICAL DATA
QUASI PARTICLES
SCATTERING
360104* - Metals & Alloys- Physical Properties