Calculation of the optical conductivity for the Anderson impurity model using the slave boson technique

The optical conductivity of the Anderson impurity mode l has been calculated by emp l oying the slave boson technique and an expansion in powers of l i N, where N is the d egeneracy o f the f electron level . This method has been used to find the effective mass of the conduction electrons for temperatures above and below the Kondo tempera ture. For low temperatures, the mass enhancement is f ound to be large while a t high t emperatures, the mass enhancement is sma ll. The conductivity i s f ound to be Drude like with frequency dependent effective mass and scattering time for low independent effective mass and temperatures and scattering time f requency for high t emperatures. The behavior of both the effective mass and the conductivity is in qualitative agreement with experimental r esul t s .

Name thesis:degree_name

M.Sc. Physics

Level thesis:degree_level

Masters

Discipline thesis:degree_discipline

Faculty of Mathematics and Science

Department dc:contributor.department

Department of Physics

Grantor

Brock University

Year dc:date.issued

1990

Author dc:creator

• Arberg, Peter.

• Anderson model.
• Bosons.
• Metals--Inclusions.
• Free electron theory of metals.
• Kondo effect.
• Electric conductivity.

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/10464/1793

OAI identifier oai:identifier

oai:brocku.scholaris.ca:10464/1793