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Article: Momentum-dependent charge transfer excitations in Sr2CuO2Cl2 angle-resolved electron energy loss spectroscopy

TitleMomentum-dependent charge transfer excitations in Sr2CuO2Cl2 angle-resolved electron energy loss spectroscopy
Authors
Issue Date1996
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 1996, v. 77 n. 9, p. 1809-1812 How to Cite?
AbstractElectron-hole pair excitations in the insulating cuprates Sr2CuO2Cl2 were investigated by angle-resolved electron energy loss spectroscopy. The optically allowed and optically forbidden transitions were observed to be strongly anisotropic in the Cu-O2 plane. The former show a large energy dispersion ∼1.5 eV along [110], and the latter appear at a higher energy position (∼4.5 eV) only along [100], but not along [110]. We interpret these results as transitions involving excitons. A small exciton model is examined to explain both the observed features.
Persistent Identifierhttp://hdl.handle.net/10722/174729
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
References

 

DC FieldValueLanguage
dc.contributor.authorWang, YYen_US
dc.contributor.authorZhang, FCen_US
dc.contributor.authorDravid, VPen_US
dc.contributor.authorNg, KKen_US
dc.contributor.authorKlein, MVen_US
dc.contributor.authorSchnatterly, SEen_US
dc.contributor.authorMiller, LLen_US
dc.date.accessioned2012-11-26T08:47:07Z-
dc.date.available2012-11-26T08:47:07Z-
dc.date.issued1996en_US
dc.identifier.citationPhysical Review Letters, 1996, v. 77 n. 9, p. 1809-1812en_US
dc.identifier.issn0031-9007en_US
dc.identifier.urihttp://hdl.handle.net/10722/174729-
dc.description.abstractElectron-hole pair excitations in the insulating cuprates Sr2CuO2Cl2 were investigated by angle-resolved electron energy loss spectroscopy. The optically allowed and optically forbidden transitions were observed to be strongly anisotropic in the Cu-O2 plane. The former show a large energy dispersion ∼1.5 eV along [110], and the latter appear at a higher energy position (∼4.5 eV) only along [100], but not along [110]. We interpret these results as transitions involving excitons. A small exciton model is examined to explain both the observed features.en_US
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.orgen_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.titleMomentum-dependent charge transfer excitations in Sr2CuO2Cl2 angle-resolved electron energy loss spectroscopyen_US
dc.typeArticleen_US
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_US
dc.identifier.authorityZhang, FC=rp00840en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0030212253en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030212253&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume77en_US
dc.identifier.issue9en_US
dc.identifier.spage1809en_US
dc.identifier.epage1812en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWang, YY=36067280700en_US
dc.identifier.scopusauthoridZhang, FC=14012468800en_US
dc.identifier.scopusauthoridDravid, VP=7006743138en_US
dc.identifier.scopusauthoridNg, KK=7403178987en_US
dc.identifier.scopusauthoridKlein, MV=7404419624en_US
dc.identifier.scopusauthoridSchnatterly, SE=6603279115en_US
dc.identifier.scopusauthoridMiller, LL=35475659800en_US

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