TY - JOUR
T1 - Electron-spin-resonance modes and the Edwards-Anderson theory of the spin-glass state
AU - Barnes, S. E.
PY - 1981
Y1 - 1981
N2 - It is shown that the ESR modes observed in Cu: Mn alloys can be explained in terms of an Edwards-Anderson-type theory for a spin-glass when an anisotropy energy is included. Unlike other theories, the present one involves the conventional form for this anisotropy, UK=Ksin2, where is the angle the local microscopic magnetization makes with the symmetry rather than equilibrium direction. The present theory is distinguished by a predicted, but as yet unobserved, angular dependence of single-crystal samples with axial symmetry.
AB - It is shown that the ESR modes observed in Cu: Mn alloys can be explained in terms of an Edwards-Anderson-type theory for a spin-glass when an anisotropy energy is included. Unlike other theories, the present one involves the conventional form for this anisotropy, UK=Ksin2, where is the angle the local microscopic magnetization makes with the symmetry rather than equilibrium direction. The present theory is distinguished by a predicted, but as yet unobserved, angular dependence of single-crystal samples with axial symmetry.
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U2 - 10.1103/PhysRevLett.47.1613
DO - 10.1103/PhysRevLett.47.1613
M3 - Article
AN - SCOPUS:35949023433
VL - 47
SP - 1613
EP - 1616
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 22
ER -