File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Pseudospin symmetry, Peierls instability, and charge-density wave

TitlePseudospin symmetry, Peierls instability, and charge-density wave
Authors
KeywordsCharge Density Wave
Peierls Instability
Issue Date1997
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/physb
Citation
Physica B: Condensed Matter, 1997, v. 230-232, p. 1061-1063 How to Cite?
AbstractWe show that there is pseudospin SU(2) symmetry in the one-dimensional tight-binding model with the inter-molecular electron-phonon interaction. For a finite lattice at half-filling, the Peierls instability drives the lattice to dimerization at low temperature. However, the system remains SU(2) symmetry invariant and is not in the charge-density wave (CDW) state. We show in a BCS-like variational approach that an attractive on-site electron-electron interaction makes the pseudospin symmetry spontaneously broken in the thermodynamic limit and the CDW state arises as well. Hence, it is clear that spontaneous pseudospin symmetry breaking produces the CDW state.
Persistent Identifierhttp://hdl.handle.net/10722/174735
ISSN
2015 Impact Factor: 1.352
2015 SCImago Journal Rankings: 0.509
References

 

DC FieldValueLanguage
dc.contributor.authorShen, SQen_US
dc.contributor.authorXie, XCen_US
dc.date.accessioned2012-11-26T08:47:08Z-
dc.date.available2012-11-26T08:47:08Z-
dc.date.issued1997en_US
dc.identifier.citationPhysica B: Condensed Matter, 1997, v. 230-232, p. 1061-1063en_US
dc.identifier.issn0921-4526en_US
dc.identifier.urihttp://hdl.handle.net/10722/174735-
dc.description.abstractWe show that there is pseudospin SU(2) symmetry in the one-dimensional tight-binding model with the inter-molecular electron-phonon interaction. For a finite lattice at half-filling, the Peierls instability drives the lattice to dimerization at low temperature. However, the system remains SU(2) symmetry invariant and is not in the charge-density wave (CDW) state. We show in a BCS-like variational approach that an attractive on-site electron-electron interaction makes the pseudospin symmetry spontaneously broken in the thermodynamic limit and the CDW state arises as well. Hence, it is clear that spontaneous pseudospin symmetry breaking produces the CDW state.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/physben_US
dc.relation.ispartofPhysica B: Condensed Matteren_US
dc.subjectCharge Density Waveen_US
dc.subjectPeierls Instabilityen_US
dc.titlePseudospin symmetry, Peierls instability, and charge-density waveen_US
dc.typeArticleen_US
dc.identifier.emailShen, SQ: sshen@hkucc.hku.hken_US
dc.identifier.authorityShen, SQ=rp00775en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0031071658en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031071658&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume230-232en_US
dc.identifier.spage1061en_US
dc.identifier.epage1063en_US
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridShen, SQ=7403431266en_US
dc.identifier.scopusauthoridXie, XC=13502915800en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats