Pregled bibliografske jedinice broj: 48670
Difference between microscopic and effective overlaps in the copper-oxide planes of high-Tc superconductors
Difference between microscopic and effective overlaps in the copper-oxide planes of high-Tc superconductors // Proceedings of the International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors VI / Salama, Kamel ; Chu, Wei-Kan ; Chu, Paul C.W. (ur.).
Amsterdam: Elsevier, 2000. (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Difference between microscopic and effective overlaps in the copper-oxide planes of high-Tc superconductors
Autori
Janković, Ladislav ; Sunko, Denis K.
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors VI
/ Salama, Kamel ; Chu, Wei-Kan ; Chu, Paul C.W. - Amsterdam : Elsevier, 2000
Skup
International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI
Mjesto i datum
Houston (TX), Sjedinjene Američke Države, 20.02.2000. - 25.02.2000
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
ARPES; high-Tc superconductors; strong correlations
Sažetak
We investigate parametrizations required to reproduce observed Fermi surfaces of overdoped and slightly underdoped LSCO in two different models. One is the standard three-band saddle-point slave boson (SB). The other is a model of CuO4 `molecules' randomly tiled in the plane, emphasizing the distinction between the local overlap, always the full (bare) one, and the effective overlap, connected with the reduced bandwidth due to the random tiling (RT). We conclude this distinction is physically significant for underdoped, but not for overdoped LSCO. This is consistent with the observed open Fermi surfaces being due to correlation effects.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
