Critical Behaviour of a Two-Dimensional Random Antiferromagnet: Rb2Mn0.5F4.

Jens Aage Als-Nielsen; R. J. Birgeneau; H. J. Guggenheim; G. Shirane

doi:10.1088/0022-3719/9/5/005

Critical Behaviour of a Two-Dimensional Random Antiferromagnet: Rb2Mn0.5F4.

Jens Aage Als-Nielsen
, R. J. Birgeneau
, H. J. Guggenheim
, G. Shirane

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A neutron scattering study of the order parameter, correlation length and staggered susceptibility of the two-dimensional random antiferromagnet Rb2Mn0.5Ni0.5F4 is reported. The system is found to exhibit a well-defined phase transition with critical exponents identical to those of the isomorphous pure materials K2NiF4 and K2MnF4. Thus, in these systems, which have the asymptotic critical behaviour of the two-dimensional Ising model, randomness has no measurable effect on the phase-transition behaviour.

Original language	English
Journal	Journal of Physics C: Solid State Physics
Volume	9
Issue number	5
Pages (from-to)	L121-L125
ISSN	0022-3719
DOIs	https://doi.org/10.1088/0022-3719/9/5/005
Publication status	Published - 1976

Access to Document

10.1088/0022-3719/9/5/005

OpenUrl availability

Check availability in DTU Findit

Cite this

@article{83428291dae946a38362ae5225b6f54b,

title = "Critical Behaviour of a Two-Dimensional Random Antiferromagnet: Rb2Mn0.5F4.",

abstract = "A neutron scattering study of the order parameter, correlation length and staggered susceptibility of the two-dimensional random antiferromagnet Rb2Mn0.5Ni0.5F4 is reported. The system is found to exhibit a well-defined phase transition with critical exponents identical to those of the isomorphous pure materials K2NiF4 and K2MnF4. Thus, in these systems, which have the asymptotic critical behaviour of the two-dimensional Ising model, randomness has no measurable effect on the phase-transition behaviour.",

author = "Als-Nielsen, \{Jens Aage\} and Birgeneau, \{R. J.\} and Guggenheim, \{H. J.\} and G. Shirane",

year = "1976",

doi = "10.1088/0022-3719/9/5/005",

language = "English",

volume = "9",

pages = "L121--L125",

journal = "Journal of Physics C: Solid State Physics",

issn = "0022-3719",

number = "5",

}

TY - JOUR

T1 - Critical Behaviour of a Two-Dimensional Random Antiferromagnet

T2 - Rb2Mn0.5F4.

AU - Als-Nielsen, Jens Aage

AU - Birgeneau, R. J.

AU - Guggenheim, H. J.

AU - Shirane, G.

PY - 1976

Y1 - 1976

N2 - A neutron scattering study of the order parameter, correlation length and staggered susceptibility of the two-dimensional random antiferromagnet Rb2Mn0.5Ni0.5F4 is reported. The system is found to exhibit a well-defined phase transition with critical exponents identical to those of the isomorphous pure materials K2NiF4 and K2MnF4. Thus, in these systems, which have the asymptotic critical behaviour of the two-dimensional Ising model, randomness has no measurable effect on the phase-transition behaviour.

AB - A neutron scattering study of the order parameter, correlation length and staggered susceptibility of the two-dimensional random antiferromagnet Rb2Mn0.5Ni0.5F4 is reported. The system is found to exhibit a well-defined phase transition with critical exponents identical to those of the isomorphous pure materials K2NiF4 and K2MnF4. Thus, in these systems, which have the asymptotic critical behaviour of the two-dimensional Ising model, randomness has no measurable effect on the phase-transition behaviour.

U2 - 10.1088/0022-3719/9/5/005

DO - 10.1088/0022-3719/9/5/005

M3 - Journal article

SN - 0022-3719

VL - 9

SP - L121-L125

JO - Journal of Physics C: Solid State Physics

JF - Journal of Physics C: Solid State Physics

IS - 5

ER -

Critical Behaviour of a Two-Dimensional Random Antiferromagnet: Rb2Mn0.5F4.

Abstract

Access to Document

OpenUrl availability

Fingerprint

Cite this