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Article: Rotational symmetry breaking in the ground state of sodium-doped cuprate superconductors

TitleRotational symmetry breaking in the ground state of sodium-doped cuprate superconductors
Authors
KeywordsPhysics
Issue Date2006
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 2006, v. 97 n. 23 How to Cite?
AbstractWe use an extended t-J model to study a single hole bound to a Na+ acceptor in Ca2-xNaxCuO2Cl2. For parameters suitable to cuprates, the ground state has a twofold degeneracy, corresponding to even (odd) reflection symmetry around the x (y) axes. The conductance pattern of the broken symmetry state is anisotropic as the tip of a tunneling microscope scans above the Cu-O-Cu bonds along the x (y) axes. This anisotropy is pronounced at lower voltages but reduced at higher voltages. Our theory agrees qualitatively with recent data of scanning tunneling microscopy showing broken local rotational symmetry. © 2006 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/45245
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Yen_HK
dc.contributor.authorRice, TMen_HK
dc.contributor.authorZhang, FCen_HK
dc.date.accessioned2007-10-30T06:20:54Z-
dc.date.available2007-10-30T06:20:54Z-
dc.date.issued2006en_HK
dc.identifier.citationPhysical Review Letters, 2006, v. 97 n. 23en_HK
dc.identifier.issn0031-9007en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45245-
dc.description.abstractWe use an extended t-J model to study a single hole bound to a Na+ acceptor in Ca2-xNaxCuO2Cl2. For parameters suitable to cuprates, the ground state has a twofold degeneracy, corresponding to even (odd) reflection symmetry around the x (y) axes. The conductance pattern of the broken symmetry state is anisotropic as the tip of a tunneling microscope scans above the Cu-O-Cu bonds along the x (y) axes. This anisotropy is pronounced at lower voltages but reduced at higher voltages. Our theory agrees qualitatively with recent data of scanning tunneling microscopy showing broken local rotational symmetry. © 2006 The American Physical Society.en_HK
dc.format.extent255245 bytes-
dc.format.extent5046 bytes-
dc.format.extent2474 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.format.mimetypetext/plain-
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.rightsPhysical Review Letters. Copyright © American Physical Society.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysicsen_HK
dc.titleRotational symmetry breaking in the ground state of sodium-doped cuprate superconductorsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=97&issue=23&spage=237004&epage=&date=2006&atitle=Rotational+symmetry+breaking+in+the+ground+state+of+sodium-doped+cuprate+superconductorsen_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.97.237004en_HK
dc.identifier.pmid17280234en_HK
dc.identifier.scopuseid_2-s2.0-33845344008en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33845344008&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume97en_HK
dc.identifier.issue23en_HK
dc.identifier.isiWOS:000242708900054-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChen, Y=7601428288en_HK
dc.identifier.scopusauthoridRice, TM=7201893707en_HK
dc.identifier.scopusauthoridZhang, FC=14012468800en_HK
dc.identifier.citeulike4311765-

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