RSS 1.0Physics and Astronomy, Department of
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This community features research by faculty and students in the Department of Physics and Astronomy at Washington State University. Research in this department deals with nanotechnology, quantum technologies and quantum degenerate gases, computational simulation, biophysical understanding, meteor impacts, planetary systems, and the warping of spacetime near black holes (to name a few examples).
Sub-communities within this community
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Faculty - Physics and Astronomy
This community features research by faculty members in the Department of Physics and Astronomy at Washington State University.
Collections in this community
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Electronic Dissertations and Theses - Physics and Astronomy
This collection contains theses and dissertations by students in the Department of Physics and Astronomy at WSU. -
Newsletters
This collection contains newsletters for the Department of Physics and Astronomy at WSU. -
Undergraduate Research - Physics and Astronomy
This collection features research materials by undergraduate students in the Department of Physics and Astronomy at Washington State University.
Recent Submissions
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Research Group Data Archive, 1985-2018
(2018-09)Included here are two parallel archives, one of raw spectral DATA and the other of spectral ANALYSIS. There is a small number of other spectra, such as of positron lifetimes, x-ray diffractograms, “DATA” contains raw ... -
Physics Matters, 2017-2018
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Solute-solute interactions in intermetallic compounds studied using perturbed angular correlation of gamma rays
(2017-05)Interactions between pairs of solute atoms dissolved in a binary intermetallic compound were studied. Perturbed angular correlation of gamma rays (PAC) was used to detect solute atoms next to impurity PAC probe atoms in ... -
Extending Miedema's Semi-Empirical Model to Predict Defect Site Preferences and Formation Enthalpies of Ordered Compounds
(2016-12)Miedema's Semi-Empirical Model is a method in which a simple calculation provides a rough estimate of the formation enthalpy of a single defect atom (of element X) surrounded completely by a solvent element (element A). ... -
A qualitative look at the thermodynamics of ternary phase diagrams
(2016-05)In 2014, Collins’ research group embarked on experiments using Perturbed Angular Correlation (PAC) spectroscopy to measure interactions between solute atoms in ternary alloys. PAC requires a probe atom, 111In, making the ... -
Helically-Supported Capillary Channels as Liquid Acquisition Devices in Microgravity
(2016)Fluid-filled springs are capillary channels that can be used as liquid acquisition devices to passively separate two-phase systems in microgravity. However, these channels must be primed and connected to a pressure reservoir ... -
Investigations of ternary alloys using perturbed angular correlations
(2015-06)The intended goal of this research was to investigate interactions between solute atoms in intermetallics using a nuclear probe method, Perturbed Angular Correlation (PAC) of gamma rays. The PAC probe, radioactive 111In, ... -
INVESTIGATING [X/FE], IMF AND COMPOSITENESS IN INTEGRATED MODELS
(2015)This dissertation explores several existing challenges of evolutionarystellar population synthesis models in integrated light:age-metallicity degeneracy, initial mass function (IMF), elementalabundances, and compositeness. ... -
Understanding Molecular Machines: Theoretical and Experimental Approaches
(2015)This dissertation concerns the study of two classes of molecular machines from a physical perspective: enzymes and membrane proteins. Though the functions of these classes of proteins are different, they each represent ... -
ULTRAFAST CARRIER DYNAMICS IN THIN FILM HYDROGENATED AMORPHOUS SILICON AND SILICON-GERMANIUM ALLOYS
(2015)This dissertation presents an investigation of the ultrafast carrier dynamics in thin film hydrogenated amorphous silicon (a-Si:H) and silicon germanium alloys (a-Si_(1-x) Ge_x:H). These materials have attracted considerable ... -
ULTRACOLD FERMIONIC FEW-BODY SYSTEMS IN REDUCED DIMENSIONS: STATIC AND DYNAMIC PROPERTIES
(2015)Much progress has been made in the preparation and manipulation of tunable ultracold atomic samples over the last three decades.Small samples of ultracold $^6$Li atoms, e.g., have beenprepared experimentally in effectively ... -
Neutrinos in Mergers of Neutron Stars with Black Holes
(2015)Mergers of a neutron star and a black hole are interesting because of the dual complexity of the black hole's strong gravity and the neutron star's nuclear-density fluid. Mergers can yield short-lived nuclear accretion ... -
Donors and defects characterization in ZnO by luminescence techniques
(2015)ZnO has attracted great interest for the past decade as it is a very promising material for semiconductor device applications. It has a direct band gap of 3.34eV, large exciton binding energy of 60meV and same wurtzite ... -
Universal and non-universal properties of ultracold few-atom systems
(2015)Ultracold atomic systems have been of great theoretical and experimental interest in the past few decades. They provide ideal paradigms to study quantum phenomena, simulate condensed matter systems, and could potentially ... -
Van de Graaff Based Positron Source Production
(2015)The anti-matter counterpart to the electron, the positron, can be used for a myriad of different scientific research projects to include materials research, energy storage, and deep space flight propulsion. Currently there ... -
Physics Matters, 2013-2014
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Good News, Spring 2014
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Fermi Liquid Theory in Spin-Polarized Thin 3He Films
(2014)In this thesis we present results from our study of two-dimensional (2D), spin-polarized Fermi liquid films. We first find the \textit{T}-matrix interaction parameters in pure $^3$He and $^3$He-$^4$He mixture films by ...