Multicritical Points in an Ising Random-Field Model

Miron Kaufman; Philip E. Klunzinger; A. Khurana

doi:10.1103/PhysRevB.34.4766

Multicritical Points in an Ising Random-Field Model

Miron Kaufman, Philip E. Klunzinger, A. Khurana

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

Abstract

The phase diagram of the mean-field Ising model in a random field obeying a symmetric three-peak distribution is determined. This distribution is relevant to diluted antiferromagnets in a uniform magnetic field. The phase diagram includes a fourth-order point, tricritical points, ordered critical points, critical end points, and a double critical end point. An ordered phase persists for arbitrarily large random fields at low temperatures.

Original language	American English
Journal	Physical Review B
Volume	34
DOIs	https://doi.org/10.1103/PhysRevB.34.4766
State	Published - Oct 1 1986

Disciplines

Physics

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title = "Multicritical Points in an Ising Random-Field Model",

abstract = " The phase diagram of the mean-field Ising model in a random field obeying a symmetric three-peak distribution is determined. This distribution is relevant to diluted antiferromagnets in a uniform magnetic field. The phase diagram includes a fourth-order point, tricritical points, ordered critical points, critical end points, and a double critical end point. An ordered phase persists for arbitrarily large random fields at low temperatures.",

author = "Miron Kaufman and Klunzinger, \{Philip E.\} and A. Khurana",

note = "Kaufman, Miron, Philip E. Klunzinger, and A. Khurana. {"}Multicritical Points in an Ising Random-Field Model.{"} emPhysical Review B/em 34 (1986): 4766-4770.",

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N2 - The phase diagram of the mean-field Ising model in a random field obeying a symmetric three-peak distribution is determined. This distribution is relevant to diluted antiferromagnets in a uniform magnetic field. The phase diagram includes a fourth-order point, tricritical points, ordered critical points, critical end points, and a double critical end point. An ordered phase persists for arbitrarily large random fields at low temperatures.

AB - The phase diagram of the mean-field Ising model in a random field obeying a symmetric three-peak distribution is determined. This distribution is relevant to diluted antiferromagnets in a uniform magnetic field. The phase diagram includes a fourth-order point, tricritical points, ordered critical points, critical end points, and a double critical end point. An ordered phase persists for arbitrarily large random fields at low temperatures.

UR - https://engagedscholarship.csuohio.edu/sciphysics_facpub/100

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M3 - Article

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JO - Physical Review B

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Multicritical Points in an Ising Random-Field Model

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