Pseudogap State in High-$T_c$ Superconductors: an Infrared Study

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dc.creatorPuchkov, A. V.
dc.creatorBasov, D. N.
dc.creatorTimusk, T.
dc.date1996-11-12
dc.date.accessioned2026-07-07T09:11:17Z
dc.date.available2026-07-07T09:11:17Z
dc.descriptionWe report on a study of the electromagnetic response of three different families of high-T_c superconductors that in combination allowed us to cover the whole doping range from under- to overdoped. The discussion is focused on the ab-plane charge dynamics in the {\it pseudogap state} which is realized in underdoped materials below a characteristic temperature T^*; a temperature that can significantly exceed the superconducting transition temperature T_c. We explore the evolution of the pseudogap response by changing the doping level, by varying the temperature from the above to below T^*, or by introducing impurities in the underdoped compounds. We employ a memory-function analysis of the ab-plane optical data that allows us to observe the effect of the pseudogap most clearly. We compare the infrared data with other experimental results, including c-axis optical response, dc transport, and angular resolved photoemission.
dc.descriptionIn proceedings of conf. on non-Fermi liquids at ITP, Santa Barbara, 1996, to appear in the Journal of Physics, Condensed Matter; 38 pages, RevTeX, with 15 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9611083
dc.identifierhttp://arxiv.org/abs/cond-mat/9611083
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/151623
dc.subjectSuperconductivity
dc.titlePseudogap State in High-$T_c$ Superconductors: an Infrared Study
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