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Properties of a classical spin liquid: the Heisenberg pyrochlore antiferromagnet

Abstract:
We study the low-temperature behaviour of the classical Heisenberg antiferromagnet with nearest neighbour interactions on the pyrochlore lattice. Because of geometrical frustration, the ground state of this model has an extensive number of degrees of freedom. We show, by analysing the effects of small fluctuations around the ground-state manifold, and from the results of Monte Carlo and molecular dynamics simulations, that the system is disordered at all temperatures, T, and has a finite relaxation time, which varies as 1/T for small T.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevLett.80.2929

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
Phys. Rev. Lett. More from this journal
Volume:
80
Issue:
13
Pages:
2929
Publication date:
1997-12-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
pubs:2002
UUID:
uuid:cd4dd0e1-3f25-4805-a808-777aaf6d3cd4
Local pid:
pubs:2002
Source identifiers:
2002
Deposit date:
2012-12-19

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