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Peierls transition in the quantum spin-Peierls model.

Abstract:

We use the density matrix renormalization group method to investigate the role of longitudinal quantized phonons on the Peierls transition in the spin-Peierls model. For both the XY and Heisenberg spin-Peierls model we show that the staggered phonon order parameter scales as sqrt[lambda] (and the dimerized bond order scales as lambda) as lambda-->0 (where lambda is the electron-phonon interaction). This result is true for both linear and cyclic chains. Thus, we conclude that the Peierls tr...

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
Journal:
Physical Review Letters
Volume:
95
Issue:
13
Pages:
137207
Publication date:
2005-09-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
33251
Language:
English
Pubs id:
pubs:33251
UUID:
uuid:a1479b40-24db-404b-99be-2ff44b0c56fb
Local pid:
pubs:33251
Deposit date:
2013-02-20

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