Investigation of Thermodynamic and Magnetic Properties of Strongly Correlated and Hybridized Electron Systems

Location

CSU 255A/B

Start Date

23-4-2007 10:00 AM

End Date

23-4-2007 12:00 PM

Student's Major

Physics and Astronomy

Student's College

Science, Engineering and Technology

Mentor's Name

Igor Kogoutiouk

Mentor's Department

Physics and Astronomy

Mentor's College

Science, Engineering and Technology

Description

We performed a theoretical study of the thermodynamic and magnetic properties of strongly correlated and hybridized electron systems. We used a modified version of the two-band Periodic Anderson Hamiltonian to model behavior of electrons in such systems. Using the improved truncation approximation for irreducible Green functions, we observed the appearance of four spectral density moments and four or five sub-bands in the non-magnetic density of states. Applying a magnetic field resulted in the density of states splitting into additional sub-bands. We also analyzed the influence of the spin-spin and electron hole excitations on the magnetic susceptibility, density of states, and specific heat in the intermediate valence and heavy-fermion regimes.

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Apr 23rd, 10:00 AM Apr 23rd, 12:00 PM

Investigation of Thermodynamic and Magnetic Properties of Strongly Correlated and Hybridized Electron Systems

CSU 255A/B

We performed a theoretical study of the thermodynamic and magnetic properties of strongly correlated and hybridized electron systems. We used a modified version of the two-band Periodic Anderson Hamiltonian to model behavior of electrons in such systems. Using the improved truncation approximation for irreducible Green functions, we observed the appearance of four spectral density moments and four or five sub-bands in the non-magnetic density of states. Applying a magnetic field resulted in the density of states splitting into additional sub-bands. We also analyzed the influence of the spin-spin and electron hole excitations on the magnetic susceptibility, density of states, and specific heat in the intermediate valence and heavy-fermion regimes.

Recommended Citation

Raymer, Eric. "Investigation of Thermodynamic and Magnetic Properties of Strongly Correlated and Hybridized Electron Systems." Undergraduate Research Symposium, Mankato, MN, April 23, 2007.
https://cornerstone.lib.mnsu.edu/urs/2007/oral-session-05/6