Exchange stiffness and macroscopic anisotropy in Heisenberg spin-glasses

H. Sompolinsky; G. Kotliar; A. Zippelius

doi:10.1103/PhysRevLett.52.392

Exchange stiffness and macroscopic anisotropy in Heisenberg spin-glasses

H. Sompolinsky^*
, G. Kotliar
, A. Zippelius

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	392-395
Number of pages	4
Journal	Physical Review Letters
Volume	52
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevLett.52.392
State	Published - 1984
Externally published	Yes

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10.1103/PhysRevLett.52.392

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title = "Exchange stiffness and macroscopic anisotropy in Heisenberg spin-glasses",

abstract = "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.",

author = "H. Sompolinsky and G. Kotliar and A. Zippelius",

year = "1984",

doi = "10.1103/PhysRevLett.52.392",

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AU - Kotliar, G.

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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.

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JO - Physical Review Letters

JF - Physical Review Letters

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Exchange stiffness and macroscopic anisotropy in Heisenberg spin-glasses

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