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...
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...
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...
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...
The objective of this dissertation is to examine federally administered soil conservation policy within the United States and the broadly defined Columbia River Basin in the US Northwest. I accomplish this in five chapters. In the first chapter I provide background information for the study. In the second chapter I...
This study compared effects of human and natural wildfire disturbance on age class distribution and associated ecosystem properties of forests in a 15,670 km2 area of the western Cascades of Oregon. The study site is characterized by three forest use types: low elevation, intensively harvested private industrial lands; mid elevation...
It has been previously suggested that the walking pattern of individuals with Down syndrome is inefficient. This is thought to result from increased instability, particularly in the medio-lateral direction, due to the characteristic joint laxity and muscle hypotonia of individuals with DS. Therefore, this work was an attempt to gain...