Bulletin of the American Physical Society
2005 APS March Meeting
Monday–Friday, March 21–25, 2005; Los Angeles, CA
Session R1: Poster Session III
Wednesday, March 23, 2005
LACC Room: Exhibit Hall 1:00-4:00pm
Abstract ID: BAPS.2005.MAR.R1.150
Abstract: R1.00150 : Band-filling Effects on the modified Periodic Anderson Model
Preview Abstract Abstract
(Minnesota State University-Mankato)
In this research, the thermodynamical properties of the modified periodic Anderson model are investigated. Half-filled symmetrical, half-filled asymmetrical and non-half-filled asymmetrical cases are considered. Using the equation of motion method, we found that the energy spectrum can contain one, three, four or five subbands, depending upon the parameters of the hamiltonian. The dependence of the density of states and specific heat upon the band-filling, temperature and applied pressure is studied. It is shown that change in these parameters can lead to metal-insulator transition and/or to the change of effective mass and type of conductivity. A comparison with the previous theoretical research and experimental data is provided.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2005.MAR.R1.150
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