Published September 1, 2007
| Version v1
Journal article
Theoretical calculations for disordered d-wave superconductors
- 1. Centro Brasileiro de Pesquisas Fisicas, R. Xavier Sigaud 150, Rio de Janeiro 22290180 (Brazil)
- 2. Departamento de Fisica, Universidade Federal Fluminense, Niteroi, RJ 24210-340 (Brazil)
- 3. Universidade do Estado do Rio de Janeiro, R. Sao Francisco 524, Rio de Janeiro 20550013 (Brazil)
Description
We calculate the distributions P[Δ0(ri)] of local d-wave pairing amplitudes Δ0(ri) and P[ρ(ri)] of local density of charge carriers ρ(ri) for the La2-xSrxCuO4 high-temperature superconductor (HTSC) family in a disordered two-dimensional medium. To reproduce the observed inhomogeneity a random potential Vimp, within a Bogoliubov-de Gennes (BdG) formalism, is considered. The calculations show that the underdoped compounds are more inhomogeneous than the overdoped ones. Also, the spatial variation of Δ0(ri) decreases as the average density of charge carriers <ρ> increases, demonstrating that the system becomes more homogeneous for high values of <ρ>
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physc.2007.03.248Additional details
Identifiers
- DOI
- 10.1016/j.physc.2007.03.248;
- arXiv
- arXiv:cond-mat/0508381v3;
- PII
- S0921-4534(07)00435-2;
Publishing Information
- Journal Title
- Physica. C, Superconductivity
- Journal Volume
- 460-462
- Journal Page Range
- p. 1163-1164
- ISSN
- 0921-4534
- CODEN
- PHYCE6
Conference
- Title
- 8. international conference on materials and mechanisms of superconductivity and high temperature superconductors
- Acronym
- M2S-HTSC VIII
- Dates
- 9-14 Jul 2006
- Place
- Dresden (Germany)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39070967
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CHARGE CARRIERS; CHARGE DENSITY; COPPER COMPOUNDS; D WAVES; DISTRIBUTION; HIGH-TC SUPERCONDUCTORS; LANTHANUM COMPOUNDS; OXYGEN COMPOUNDS; RANDOMNESS; STRONTIUM COMPOUNDS; TWO-DIMENSIONAL CALCULATIONS; VARIATIONS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; PARTIAL WAVES; RARE EARTH COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.