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Article: Low-frequency chain and in-plane optical conductivities of detwinned Y Ba2 Cu3 Oy: Slave-boson mean-field analysis of the t-J model

TitleLow-frequency chain and in-plane optical conductivities of detwinned Y Ba2 Cu3 Oy: Slave-boson mean-field analysis of the t-J model
Authors
Issue Date2007
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2007, v. 75 n. 5 How to Cite?
AbstractBased on a scenario in which the Cu O2 plane and CuO chain is coupled together, we study theoretically the low-frequency chain and in-plane optical conductivities of detwinned Y Ba2 Cu3 Oy. Using the slave-boson mean-field approach to the t-J model and including the antiferromagnetic spin fluctuations in the plane, we elaborate that the chain is superconducting for y>6.67 while insulating for y<6.67 due to the competition between the plane-chain coupling and the antiferromagnetic order in the chain, corresponding to a superconductor-insulator transition. Stemming also from the coupling between the plane and chain, a new peak emerges at a low frequency in the in-plane spectra in the superconducting state, while it disappears in the normal state. These results are consistent with very recent experiments. © 2007 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/175053
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhou, Ten_US
dc.contributor.authorLi, JXen_US
dc.contributor.authorWang, ZDen_US
dc.date.accessioned2012-11-26T08:48:59Z-
dc.date.available2012-11-26T08:48:59Z-
dc.date.issued2007en_US
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2007, v. 75 n. 5en_US
dc.identifier.issn1098-0121en_US
dc.identifier.urihttp://hdl.handle.net/10722/175053-
dc.description.abstractBased on a scenario in which the Cu O2 plane and CuO chain is coupled together, we study theoretically the low-frequency chain and in-plane optical conductivities of detwinned Y Ba2 Cu3 Oy. Using the slave-boson mean-field approach to the t-J model and including the antiferromagnetic spin fluctuations in the plane, we elaborate that the chain is superconducting for y>6.67 while insulating for y<6.67 due to the competition between the plane-chain coupling and the antiferromagnetic order in the chain, corresponding to a superconductor-insulator transition. Stemming also from the coupling between the plane and chain, a new peak emerges at a low frequency in the in-plane spectra in the superconducting state, while it disappears in the normal state. These results are consistent with very recent experiments. © 2007 The American Physical Society.en_US
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physicsen_US
dc.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.-
dc.titleLow-frequency chain and in-plane optical conductivities of detwinned Y Ba2 Cu3 Oy: Slave-boson mean-field analysis of the t-J modelen_US
dc.typeArticleen_US
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_US
dc.identifier.authorityWang, ZD=rp00802en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1103/PhysRevB.75.054512en_US
dc.identifier.scopuseid_2-s2.0-33847020881en_US
dc.identifier.hkuros131543-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33847020881&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume75en_US
dc.identifier.issue5en_US
dc.identifier.isiWOS:000244532600082-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridZhou, T=7402989483en_US
dc.identifier.scopusauthoridLi, JX=8678926100en_US
dc.identifier.scopusauthoridWang, ZD=14828459100en_US

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