Details of Grant 

EPSRC Reference:	GR/N28092/01
Title:	DEVELOPMENT OF A LOCAL MOMENT APPROACH TO STRONGLY CORRELATED ELECTRON SYSTEMS
Principal Investigator:	Logan, Professor DE
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department:	Oxford Chemistry
Organisation:	University of Oxford
Scheme:	Standard Research (Pre-FEC)
Starts:	25 February 2001	Ends:	24 February 2004	Value (£):	116,150
EPSRC Research Topic Classifications:	Condensed Matter Physics
EPSRC Industrial Sector Classifications:	Manufacturing
Related Grants:
Panel History:
Summary on Grant Application Form
The proposal is to develop a entirely new, microscopically based local moment approach (LMA) to systems dominated by strong, local coulomb interactions. Building upon, but going far beyond, recent work that demonstrates the veracity of the basic approach, a 2 fold strategy will be adopted. 1st, to investigate a class of Anderson impurity models that in general contain a nontrivial quantum phase transition (but include the normal Anderson Model as a special case); focusing in particular on dynamical properties that are traditionally the most difficult to describe theoretically, especially in a domain of strong on-site correlations. The inherent aim is a description of both dynamical and transport properties, on all relevant energy and temperature scales and for the full physical range of model parameters. Second, we seek to develop the LMA further to encompass lattice-based models which, within the framework of dynamical mean-field theory, reduce in effect to self-consistent impurity models. The specific aims here are to investigate the rich physics of paramagnetic metallic phases of the Hubbard model away from half-filling, as well as the Kondo-insulator physics of the periodic Anderson model at half-filling; and in either case with particular emphasis on strong coupling regimes that are characteristically dominated by subtle low-energy and low-temperature scales.
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Organisation Website:	http://www.ox.ac.uk