Objective This proposal is for theoretical research on the construction and solution of charge-spin models for correlated-electron systems, with application to both bulk materials (high Tc cuprates) and nanoscale structures with potential for future quantum-coherent devices. Theoretical techniques will include a recently developed finite cluster method, degenerate per- turbation theory and quantum Monte Carlo simulations. These will be applied to the following problems. 1. Investigation of low-energy properties in the normal-state of the high Tc superconductors by approximate but accurate solutions of large clusters ( l00CuO2 'cells'). This will include the determination of correlation functions, optical conductivity and deviations from Fermi-liquid behaviour. 2. Accurate determination of effective single-band charge-spin parameters for copper-oxide planes from realistic multi-band models. This will extend earlier work and will be particularly directed towards the identification of pairing interactions. 3. Investigation of collective behaviour and critical phenomena in a quantum dot array modelled by a multi-band Hubbard Hamiltonian. 4. Detailed study of transport through a semiconducting quantum dot containing electrons at low density and in the presence of defects. This will include an investigation of persistent currents in nanoscale, two-dimensional rings. Fields of science natural sciencesphysical scienceselectromagnetism and electronicssuperconductivity Programme(s) FP4-TMR - Specific research and technological development programme in the field of the training and mobility of researchers, 1994-1998 Topic(s) 0302 - Post-doctoral research training grants TP07 - Statistical Physics Call for proposal Data not available Funding Scheme RGI - Research grants (individual fellowships) Coordinator KING¿S COLLEGE LONDON Address Strand London United Kingdom See on map Links Website Opens in new window EU contribution € 0,00 Participants (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all Not available Germany EU contribution € 0,00 Address See on map
