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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
Mishra, AMa, MZhang, FCGuertler, STang, LHWan, S
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, article no. 207201 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevLett.93.207201
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
0031-9007
2023 Impact Factor: 8.1
2023 SCImago Journal Rankings: 3.040
ISI Accession Number ID
WOS:000225068800061
References
References in Scopus

 

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, article no. 207201-
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.rightsCopyright 2004 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevLett.93.207201-
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.spagearticle no. 207201-
dc.identifier.epagearticle no. 207201-
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
dc.identifier.issnl0031-9007-

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