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  • De-Haas van-Alphen effect in the quantum limit

    Creator:
    Karniewicz, Joseph J.
    Abstract:
    In this work we apply the finite temperature formulation of quantum statistical mechanics to an analysis of the de Haas-van Alphen effect in the quantum limit. A new expression is derived for the differential magnetic susceptibility which clearly shows the individual contributions of zero-temperature and non-zero temperature terms. Interactions have...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Allen Wasserman In this work we apply the finite temperature formulation of quantum

  • Collective electronic excitation modes in a superlattice

    Creator:
    Lee, Yong-Inn
    Abstract:
    Collective excitation(plasmon) modes of an electron gas in a multilayer system (superlattice) have been studied in great detail in recent years. One important aspect of this Fermion system is that the dispersion relation of the plasma frequency shows transitional behavior between two- and three- dimensional character. Inelastic light scattering experiment...
    Resource Type:
    Dissertation
    Full Text:
    approved: Redacted for privacy Ay- Allen Wasserman Collective excitation(plasmon) modes of an electron

  • Second harmonic generation in polyacetylene

    Creator:
    Kircher, Jens
    Abstract:
    This study investigates nonlinear optical properties of matter. Nonlinear optical effects have found a wide field of applications such as the extension of the operation range of lasers to higher frequencies, material probes and optical image processing. A brief introduction to the most common nonlinear optical phenomena is given and...
    Resource Type:
    Masters Thesis
    Full Text:
    : ,/ Dr. Allen Wasserman This study investigates nonlinear optical properties of matter. Nonlinear

  • Local field effects on dielectric properties of solids

    Creator:
    Canfield, Lingzhou Li
    Abstract:
    Local field effects on the dielectric properties of solids have been studied for three-dimensional and two-dimensional crystals by using two kinds of dipole models: an atomic dipole model in which dipoles coincide with atom sites and a bond dipole model in which dipoles are placed along bond directions. Local fields...
    Resource Type:
    Dissertation
    Full Text:
    , Professor Allen Wasserman, for his guidance during the course of this work. I would like to express my

  • Heavy fermion effective mass in the superconducting vortex state

    Creator:
    Townsend, Emily A.
    Abstract:
    The extended-Lifshitz-Kosevitch formalism (ELK) unifies the treatment of the de Haas-van Alphen (dHvA) effect, allowing it to transcend its traditional roles of mapping Fermi surfaces and measuring effective masses. Here we exploit the capabilities of dHvA as a probe of many-body effects to examine heavy-fermion su- perconductivity. ELK successfully describes...
    Resource Type:
    Dissertation
    Full Text:
    the Superconducting Vortex State Abstract approved: Allen L. Wasserman The extended-Lifshitz