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Orientation dependence of surface critical phenomena in antiferromagnets: exact results in two dimensions

Abstract:

For an Ising antiferromagnet, we analyze exact expressions for the one- and two-point correlation functions for spins on the edge of a square lattice with a magnetic field applied to the surface sites. Two different edge orientations, with respect to the crystal axes, are treated. At bulk criticality, we confirm that the surface universality class depends on the edge orientation and show the importance of having the bulk phase in a pure state. For the two-point function, we find a singularity...

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Publication status:
Published

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Publisher copy:
10.1103/physrevlett.85.2541

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
Physical Review Letters
Volume:
85
Issue:
12
Pages:
2541-2544
Publication date:
2000-09-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
21540
Language:
English
Pubs id:
pubs:21540
UUID:
uuid:39776cf0-1187-409f-ab27-4d13a397033c
Local pid:
pubs:21540
Deposit date:
2012-12-19

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