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Title: Anomalous dispersion in the autocorrelation of angle-resolved photoemission spectra of high-temperature Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta} superconductors.

Abstract

We find that peaks in the autocorrelation of angle-resolved photoemission spectroscopy data of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} in the superconducting state show dispersive behavior for binding energies smaller than the maximum superconducting energy gap. For higher energies, though, a striking anomalous dispersion is observed that is a consequence of the interaction of the electrons with collective excitations. In contrast, in the pseudogap phase, we only observe dispersionless behavior for the autocorrelation peaks. The implications of our findings in regard to Fourier transformed scanning tunneling spectroscopy data are discussed.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF)
OSTI Identifier:
919734
Report Number(s):
ANL/MSD/JA-60531
TRN: US200822%%481
DOE Contract Number:
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. B; Journal Volume: 76; Journal Issue: 2007
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; COLLECTIVE EXCITATIONS; ENERGY GAP; PHOTOEMISSION; HIGH-TC SUPERCONDUCTORS; BISMUTH OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES

Citation Formats

Chatterjee, U., Shi, M., Kaminski, A., Kanigel, A., Fretwell, H. M., Terashima, K., Takahashi, T., Rosenkranz, S., Li, Z. Z., Raffy, H., Santander-Syro, A., Kadowaki, K., Randeria, M., Norman, M. R., Campuzano, J. C., Univ. Illinois at Chicago, Paul Scherrer Inst., Iowa State Univ., Tohoku Univ., Univ. Paris-Sud, Univ. Tsukuba, and Ohio State Univ. Anomalous dispersion in the autocorrelation of angle-resolved photoemission spectra of high-temperature Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta} superconductors.. United States: N. p., 2007. Web. doi:10.1103/PhysRevB.76.012504.
Chatterjee, U., Shi, M., Kaminski, A., Kanigel, A., Fretwell, H. M., Terashima, K., Takahashi, T., Rosenkranz, S., Li, Z. Z., Raffy, H., Santander-Syro, A., Kadowaki, K., Randeria, M., Norman, M. R., Campuzano, J. C., Univ. Illinois at Chicago, Paul Scherrer Inst., Iowa State Univ., Tohoku Univ., Univ. Paris-Sud, Univ. Tsukuba, & Ohio State Univ. Anomalous dispersion in the autocorrelation of angle-resolved photoemission spectra of high-temperature Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta} superconductors.. United States. doi:10.1103/PhysRevB.76.012504.
Chatterjee, U., Shi, M., Kaminski, A., Kanigel, A., Fretwell, H. M., Terashima, K., Takahashi, T., Rosenkranz, S., Li, Z. Z., Raffy, H., Santander-Syro, A., Kadowaki, K., Randeria, M., Norman, M. R., Campuzano, J. C., Univ. Illinois at Chicago, Paul Scherrer Inst., Iowa State Univ., Tohoku Univ., Univ. Paris-Sud, Univ. Tsukuba, and Ohio State Univ. Mon . "Anomalous dispersion in the autocorrelation of angle-resolved photoemission spectra of high-temperature Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta} superconductors.". United States. doi:10.1103/PhysRevB.76.012504.
@article{osti_919734,
title = {Anomalous dispersion in the autocorrelation of angle-resolved photoemission spectra of high-temperature Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta} superconductors.},
author = {Chatterjee, U. and Shi, M. and Kaminski, A. and Kanigel, A. and Fretwell, H. M. and Terashima, K. and Takahashi, T. and Rosenkranz, S. and Li, Z. Z. and Raffy, H. and Santander-Syro, A. and Kadowaki, K. and Randeria, M. and Norman, M. R. and Campuzano, J. C. and Univ. Illinois at Chicago and Paul Scherrer Inst. and Iowa State Univ. and Tohoku Univ. and Univ. Paris-Sud and Univ. Tsukuba and Ohio State Univ.},
abstractNote = {We find that peaks in the autocorrelation of angle-resolved photoemission spectroscopy data of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} in the superconducting state show dispersive behavior for binding energies smaller than the maximum superconducting energy gap. For higher energies, though, a striking anomalous dispersion is observed that is a consequence of the interaction of the electrons with collective excitations. In contrast, in the pseudogap phase, we only observe dispersionless behavior for the autocorrelation peaks. The implications of our findings in regard to Fourier transformed scanning tunneling spectroscopy data are discussed.},
doi = {10.1103/PhysRevB.76.012504},
journal = {Phys. Rev. B},
number = 2007,
volume = 76,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}