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Article: Directional ordering of fluctuations in a two-dimensional compass model

TitleDirectional ordering of fluctuations in a two-dimensional compass model
Authors
KeywordsPhysics
Issue Date2004
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 2004, v. 93 n. 20, p. 207201-1-207201-4 How to Cite?
AbstractA classical realization of directional coupling in two dimension of the effective orbital-orbital interaction in the Mott insulating phase of the transition metal oxides (TMO) was presented. The model exhibited partial orbital ordering in the form of directional ordering of fluctuation at low temperatures stabilized by an entropy gap. The directional ordering was necessarily accompanied by a lattice distortion and the bond length in horizontal and vertical directions became unequal when the couplings of the orbital isosopin to lattice modes were included. Analysis shows that the compass model has a low temperature phase which exhibited long-ranged correlations in the directions of fluctuations in both isospin and lattice spaces.
Persistent Identifierhttp://hdl.handle.net/10722/42502
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMishra, Aen_HK
dc.contributor.authorMa, Men_HK
dc.contributor.authorZhang, FCen_HK
dc.contributor.authorGuertler, Sen_HK
dc.contributor.authorTang, LHen_HK
dc.contributor.authorWan, Sen_HK
dc.date.accessioned2007-01-29T08:51:15Z-
dc.date.available2007-01-29T08:51:15Z-
dc.date.issued2004en_HK
dc.identifier.citationPhysical Review Letters, 2004, v. 93 n. 20, p. 207201-1-207201-4en_HK
dc.identifier.issn0031-9007en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42502-
dc.description.abstractA classical realization of directional coupling in two dimension of the effective orbital-orbital interaction in the Mott insulating phase of the transition metal oxides (TMO) was presented. The model exhibited partial orbital ordering in the form of directional ordering of fluctuation at low temperatures stabilized by an entropy gap. The directional ordering was necessarily accompanied by a lattice distortion and the bond length in horizontal and vertical directions became unequal when the couplings of the orbital isosopin to lattice modes were included. Analysis shows that the compass model has a low temperature phase which exhibited long-ranged correlations in the directions of fluctuations in both isospin and lattice spaces.en_HK
dc.format.extent118862 bytes-
dc.format.extent26112 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.orgen_HK
dc.relation.ispartofPhysical Review Lettersen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysicsen_HK
dc.titleDirectional ordering of fluctuations in a two-dimensional compass modelen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=93&issue=20&spage=207201:1&epage=4&date=2004&atitle=Directional+ordering+of+fluctuations+in+a+two-dimensional+compass+modelen_HK
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_HK
dc.identifier.authorityZhang, FC=rp00840en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevLett.93.207201en_HK
dc.identifier.scopuseid_2-s2.0-19744380053en_HK
dc.identifier.hkuros97053-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-19744380053&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume93en_HK
dc.identifier.issue20en_HK
dc.identifier.spage207201en_HK
dc.identifier.epage1en_HK
dc.identifier.isiWOS:000225068800061-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridMishra, A=7201441638en_HK
dc.identifier.scopusauthoridMa, M=7202445040en_HK
dc.identifier.scopusauthoridZhang, FC=14012468800en_HK
dc.identifier.scopusauthoridGuertler, S=6506314372en_HK
dc.identifier.scopusauthoridTang, LH=7402081089en_HK
dc.identifier.scopusauthoridWan, S=7202724266en_HK

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