CHALOUPKA, Jiří, Jiří MAREK and Dominik MUNZAR. Towards a microscopic gauge-invariant theory of the c-axis electrodynamics of multilayer high-Tc compounds. In M2S-HTSC VIII. Dresden: Neuveden, 2006, p. 346.
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Basic information
Original name Towards a microscopic gauge-invariant theory of the c-axis electrodynamics of multilayer high-Tc compounds
Name in Czech Na cestě k mikroskopické kalibračně-invariantní teorii elektrodynamiky vrstevnatých vysokoteplotních supravodičů
Authors CHALOUPKA, Jiří (203 Czech Republic), Jiří MAREK (203 Czech Republic) and Dominik MUNZAR (203 Czech Republic, guarantor).
Edition Dresden, M2S-HTSC VIII, p. 346-346, 2006.
Publisher Neuveden
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10302 Condensed matter physics
Country of publisher Germany
Confidentiality degree is not subject to a state or trade secret
RIV identification code RIV/00216224:14310/06:00018441
Organization unit Faculty of Science
Keywords in English gauge-invariance;high-Tc compounds;optical response;bilayer split bands
Tags bilayer split bands, gauge-invariance, high-Tc compounds, optical response
Tags International impact, Reviewed
Changed by Changed by: prof. Mgr. Dominik Munzar, Dr., učo 673. Changed: 9/2/2007 17:21.
Abstract
The nature of the electronic coupling between the neighbouring copper-oxygen planes in bilayer high-Tc cuprate superconductors is closely related to that of the underlying ground state. For this reason, it is of fundamental interest. Photoemission experiments on bilayer Bi-2212 reveal two well defined bands, corresponding to even- and odd- symmetry electronic states of the two planes. Measured c-axis IR spectra of underdoped bilayer materials, however, rather appear to be consistent with the model, where the stack of the planes is represented by a superlattice of Josephson junctions. We report on our attempts to resolve the controversy by computing the IR response considering the bilayer-split bands, such as observed by photoemission, and comparing the results with optical data. The simplest conceivable approach has been improved by including selfenergy terms, such as used in our study of the in-plane response, and vertex-corrections required for the theory to be gauge invariant.
Abstract (in Czech)
The nature of the electronic coupling between the neighbouring copper-oxygen planes in bilayer high-Tc cuprate superconductors is closely related to that of the underlying ground state. For this reason, it is of fundamental interest. Photoemission experiments on bilayer Bi-2212 reveal two well defined bands, corresponding to even- and odd- symmetry electronic states of the two planes. Measured c-axis IR spectra of underdoped bilayer materials, however, rather appear to be consistent with the model, where the stack of the planes is represented by a superlattice of Josephson junctions. We report on our attempts to resolve the controversy by computing the IR response considering the bilayer-split bands, such as observed by photoemission, and comparing the results with optical data. The simplest conceivable approach has been improved by including selfenergy terms, such as used in our study of the in-plane response, and vertex-corrections required for the theory to be gauge invariant.
Links
MSM0021622410, plan (intention)Name: Fyzikální a chemické vlastnosti pokročilých materiálů a struktur
Investor: Ministry of Education, Youth and Sports of the CR, Physical and chemical properties of advanced materials and structures
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