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Title: Evolution of the Pseudogap State of High-{ital T{sub c}} Superconductors with Doping

Abstract

We report on a study of the infrared properties of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}, Bi{sub 1.66}Pb{sub 0.34}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}, and Tl{sub 2}Ba{sub 2}CuO{sub 6+{delta}} crystals at doping levels from underdoped to strongly overdoped. We calculate the frequency-dependent scattering rate 1/{tau}({omega},{ital T}) and study its doping dependence. While we observe a normal-state gaplike depression in 1/{tau}({omega},{ital T}) in the underdoped regime, it is not observed in the overdoped regime. While the high-frequency 1/{tau}({omega},{ital T}) is temperature independent in the underdoped regime, it scales with temperature in the overdoped regime. {copyright} {ital 1996 The American Physical Society.}

Authors:
; ; ; ; ;  [1]
  1. Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, L8S4M1 (CANADA)
Publication Date:
OSTI Identifier:
388366
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 77; Journal Issue: 15; Other Information: PBD: Oct 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; HIGH-TC SUPERCONDUCTORS; ENERGY GAP; INFRARED SPECTRA; BISMUTH OXIDES; LEAD OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; THALLIUM OXIDES; DOPED MATERIALS; FREQUENCY DEPENDENCE; TEMPERATURE DEPENDENCE

Citation Formats

Puchkov, A V, Fournier, P, Basov, D N, Timusk, T, Kapitulnik, A, Kolesnikov, N N, Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, Center for Superconductivity Research and Department of Physics, University of Maryland, College Park, Maryland 20742, and Institute of Solid State Physics, Chernogolovka, Russia, 142432]. Evolution of the Pseudogap State of High-{ital T{sub c}} Superconductors with Doping. United States: N. p., 1996. Web. doi:10.1103/PhysRevLett.77.3212.
Puchkov, A V, Fournier, P, Basov, D N, Timusk, T, Kapitulnik, A, Kolesnikov, N N, Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, Center for Superconductivity Research and Department of Physics, University of Maryland, College Park, Maryland 20742, & Institute of Solid State Physics, Chernogolovka, Russia, 142432]. Evolution of the Pseudogap State of High-{ital T{sub c}} Superconductors with Doping. United States. https://doi.org/10.1103/PhysRevLett.77.3212
Puchkov, A V, Fournier, P, Basov, D N, Timusk, T, Kapitulnik, A, Kolesnikov, N N, Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, Center for Superconductivity Research and Department of Physics, University of Maryland, College Park, Maryland 20742, and Institute of Solid State Physics, Chernogolovka, Russia, 142432]. 1996. "Evolution of the Pseudogap State of High-{ital T{sub c}} Superconductors with Doping". United States. https://doi.org/10.1103/PhysRevLett.77.3212.
@article{osti_388366,
title = {Evolution of the Pseudogap State of High-{ital T{sub c}} Superconductors with Doping},
author = {Puchkov, A V and Fournier, P and Basov, D N and Timusk, T and Kapitulnik, A and Kolesnikov, N N and Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305 and Center for Superconductivity Research and Department of Physics, University of Maryland, College Park, Maryland 20742 and Institute of Solid State Physics, Chernogolovka, Russia, 142432]},
abstractNote = {We report on a study of the infrared properties of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}, Bi{sub 1.66}Pb{sub 0.34}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}, and Tl{sub 2}Ba{sub 2}CuO{sub 6+{delta}} crystals at doping levels from underdoped to strongly overdoped. We calculate the frequency-dependent scattering rate 1/{tau}({omega},{ital T}) and study its doping dependence. While we observe a normal-state gaplike depression in 1/{tau}({omega},{ital T}) in the underdoped regime, it is not observed in the overdoped regime. While the high-frequency 1/{tau}({omega},{ital T}) is temperature independent in the underdoped regime, it scales with temperature in the overdoped regime. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevLett.77.3212},
url = {https://www.osti.gov/biblio/388366}, journal = {Physical Review Letters},
number = 15,
volume = 77,
place = {United States},
year = {Tue Oct 01 00:00:00 EDT 1996},
month = {Tue Oct 01 00:00:00 EDT 1996}
}