TY - JOUR
T1 - Exchange stiffness and macroscopic anisotropy in Heisenberg spin-glasses
AU - Sompolinsky, H.
AU - Kotliar, G.
AU - Zippelius, A.
PY - 1984
Y1 - 1984
N2 - The consequences of rotational-symmetry breaking in Heisenberg spin-glasses are studied with use of order parameters which are time-dependent SO(3) rotation matrices. A microscopic derivation of the hydrodynamic "triad" theory, including the effect of small magnetic fields and random anisotropies, is presented. In the mean-field limit the finite-time exchange stiffness and macroscopic anisotropy constants vanish near the transition temperature Tg as (Tg-T), =3.
AB - The consequences of rotational-symmetry breaking in Heisenberg spin-glasses are studied with use of order parameters which are time-dependent SO(3) rotation matrices. A microscopic derivation of the hydrodynamic "triad" theory, including the effect of small magnetic fields and random anisotropies, is presented. In the mean-field limit the finite-time exchange stiffness and macroscopic anisotropy constants vanish near the transition temperature Tg as (Tg-T), =3.
UR - http://www.scopus.com/inward/record.url?scp=4243885103&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.52.392
DO - 10.1103/PhysRevLett.52.392
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AN - SCOPUS:4243885103
SN - 0031-9007
VL - 52
SP - 392
EP - 395
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
ER -