Shadow bands in overdoped Bi2Sr2CaCu2O8+x

S. LaRosa; R. J. Kelley; C. Kendziora; G. Margaritondo; M. Onellion; A. Chubukov

doi:10.1016/S0038-1098(97)00378-5

Shadow bands in overdoped Bi₂Sr₂CaCu₂O_8+x

S. LaRosa
, R. J. Kelley
, C. Kendziora
, G. Margaritondo
, M. Onellion
, A. Chubukov

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We performed angle-resolved photoemission experiments on overdoped single crystal Bi₂Sr₂CaCu₂O_8+x samples with Tc values as low as 55K and very narrow transitions as measured by AC susceptibility. The photoemission data indicate the presence of a "shadow" peak in the quasiparticle spectral function A (ω) shifted by (π, π) from the conventional quasiparticle peak. The ratio of the shadow/quasiparticle peak amplitudes strongly increases with the binding energy. This is consistent with the idea that the shadow peak is not a structural replica of the quasiparticle peak, but rather a maximum in a spectral function which can exist due to interaction with spin fluctuations peaked at (π, π).

Original language	English (US)
Pages (from-to)	459-464
Number of pages	6
Journal	Solid State Communications
Volume	104
Issue number	8
DOIs	https://doi.org/10.1016/S0038-1098(97)00378-5
State	Published - Nov 1997

Bibliographical note

Funding Information:
AcknowZedge~~ts-We benefittedfr om ~nversations with Ph. Aebi, I. Bozovic, E. Dagotto, G. Grabovski, R. Joynt, A. Kampf, I. Mazin, A.Millis and R. Schri-effer.F inancials upportw asp rovidedb y the U.S. NSF, both directly and through support of the Wisconsin SynchrotronR adiation Center, Ecole Polytechnique FederaleL ausannea, nd the Fonds National Suissed e la RechercheS cientifiqueS. LR is an EC Fellow, C.K. is a National ResearchC ouncil Fellow,a nd AC. is an AX Sloan Fellow.

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10.1016/S0038-1098(97)00378-5

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@article{ffdfdc41fd474e45adfa27c4071f9b38,

title = "Shadow bands in overdoped Bi2Sr2CaCu2O8+x",

abstract = "We performed angle-resolved photoemission experiments on overdoped single crystal Bi2Sr2CaCu2O8+x samples with Tc values as low as 55K and very narrow transitions as measured by AC susceptibility. The photoemission data indicate the presence of a {"}shadow{"} peak in the quasiparticle spectral function A (ω) shifted by (π, π) from the conventional quasiparticle peak. The ratio of the shadow/quasiparticle peak amplitudes strongly increases with the binding energy. This is consistent with the idea that the shadow peak is not a structural replica of the quasiparticle peak, but rather a maximum in a spectral function which can exist due to interaction with spin fluctuations peaked at (π, π).",

author = "S. LaRosa and Kelley, \{R. J.\} and C. Kendziora and G. Margaritondo and M. Onellion and A. Chubukov",

note = "Funding Information: AcknowZedge\textasciitilde{}\textasciitilde{}ts-We benefittedfr om \textasciitilde{}nversations with Ph. Aebi, I. Bozovic, E. Dagotto, G. Grabovski, R. Joynt, A. Kampf, I. Mazin, A.Millis and R. Schri-effer.F inancials upportw asp rovidedb y the U.S. NSF, both directly and through support of the Wisconsin SynchrotronR adiation Center, Ecole Polytechnique FederaleL ausannea, nd the Fonds National Suissed e la RechercheS cientifiqueS. LR is an EC Fellow, C.K. is a National ResearchC ouncil Fellow,a nd AC. is an AX Sloan Fellow.",

year = "1997",

month = nov,

doi = "10.1016/S0038-1098(97)00378-5",

language = "English (US)",

volume = "104",

pages = "459--464",

journal = "Solid State Communications",

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TY - JOUR

T1 - Shadow bands in overdoped Bi2Sr2CaCu2O8+x

AU - LaRosa, S.

AU - Kelley, R. J.

AU - Kendziora, C.

AU - Margaritondo, G.

AU - Onellion, M.

AU - Chubukov, A.

N1 - Funding Information: AcknowZedge~~ts-We benefittedfr om ~nversations with Ph. Aebi, I. Bozovic, E. Dagotto, G. Grabovski, R. Joynt, A. Kampf, I. Mazin, A.Millis and R. Schri-effer.F inancials upportw asp rovidedb y the U.S. NSF, both directly and through support of the Wisconsin SynchrotronR adiation Center, Ecole Polytechnique FederaleL ausannea, nd the Fonds National Suissed e la RechercheS cientifiqueS. LR is an EC Fellow, C.K. is a National ResearchC ouncil Fellow,a nd AC. is an AX Sloan Fellow.

PY - 1997/11

Y1 - 1997/11

N2 - We performed angle-resolved photoemission experiments on overdoped single crystal Bi2Sr2CaCu2O8+x samples with Tc values as low as 55K and very narrow transitions as measured by AC susceptibility. The photoemission data indicate the presence of a "shadow" peak in the quasiparticle spectral function A (ω) shifted by (π, π) from the conventional quasiparticle peak. The ratio of the shadow/quasiparticle peak amplitudes strongly increases with the binding energy. This is consistent with the idea that the shadow peak is not a structural replica of the quasiparticle peak, but rather a maximum in a spectral function which can exist due to interaction with spin fluctuations peaked at (π, π).

AB - We performed angle-resolved photoemission experiments on overdoped single crystal Bi2Sr2CaCu2O8+x samples with Tc values as low as 55K and very narrow transitions as measured by AC susceptibility. The photoemission data indicate the presence of a "shadow" peak in the quasiparticle spectral function A (ω) shifted by (π, π) from the conventional quasiparticle peak. The ratio of the shadow/quasiparticle peak amplitudes strongly increases with the binding energy. This is consistent with the idea that the shadow peak is not a structural replica of the quasiparticle peak, but rather a maximum in a spectral function which can exist due to interaction with spin fluctuations peaked at (π, π).

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EP - 464

JO - Solid State Communications

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