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Filtering by: Contributor advisor sim Jansen, Henri J. F. Remove constraint Contributor advisor sim: Jansen, Henri J. F.

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Monte Carlo simulation of oxygen mobility in cubic zirconia

Creator:

Gutekunst, Bernd

Abstract:

The focus of this thesis is a study of the thermodynamics and the transport of oxygen in yttrium-doped cubic zirconia (Zr0₂). This material is representative of other ceramics with the same crystal structure (Y-Ce0₂ etc.). The Monte Carlo technique as developed by Metropolis et al. is used to calculate thermodynamical...

Resource Type:

Masters Thesis
Parametrization of energy bands in zirconia

Creator:

Rosenbauer, Martin

Resource Type:

Masters Thesis
Electronic structures and magnetic properties of iron in various magnetic states and structural phases

Creator:

Peng, Songshi S.

Abstract:

Total energy calculations based on density functional theory are generally a good approach to obtain the properties of solids. The local density approximation (LDA) is widely used for calculating the ground state properties of electronic systems; for excited states the errors are in general unknown. The important aspects of LDA...

Resource Type:

Dissertation
Electronic structure and optical properties of ZnO : bulk and surface

Creator:

Yan, Caihua

Resource Type:

Dissertation
Molecular dynamics at constant temperature and pressure

Creator:

Decker, Mike W.

Abstract:

Molecular dynamics is a technique in which the trajectories of a group of particles are calculated as a function of time by integrating the equations of motion. In this thesis we study the use of molecular dynamics for atoms in a crystal. A model is introduced which describes interactions of...

Resource Type:

Masters Thesis
Calculation of magnetocrystalline anisotropy

Creator:

Schneider, Gunter

Abstract:

The magnetocrystalline anisotropy energy (MAE) for fcc Ni and bcc Fe is calculated as the difference of single particle energy eigenvalue sums using a tight-binding model. For nickel we predict a MAE of -0.15 eV and the wrong easy axis, for iron we find a MAE of -0.7 eV with...

Resource Type:

Dissertation
Immersion energies of atoms in jellium

Creator:

Albus, Alexander P.

Abstract:

Immersion energies of atoms in a jellium environment were calculated using density functional theory and the Kohn-Sham (KS) equations. It was found that the KS scheme does not destroy an existing axial symmetry of the electron structure of the impurity atom. The definition of phase shifts was extended to those...

Resource Type:

Masters Thesis
Relation between bandstructure and magnetocrystalline anisotropy : iron and nickel

Creator:

Wang, Haiyan

Abstract:

A large amount of research has been done in which the magnetocrystalline anisotropy energy for fcc Ni and bcc Fe was calculated based on the electronic structure of these elements. Unfortunately; the results of these studies don't agree with each other and also differ from the experimental observation. In a...

Resource Type:

Masters Thesis
Effect of iron redistribution in soils on cesium magnetometer surveys at the Oregon State University research dairy

Creator:

Rogers, Michael

Abstract:

Contamination events at Oak Creek, which runs through Oregon State University Research lands, prompted investigations into alternate transport mechanisms for moving liquid effluent from OSU Diary lands to Oak Creek. Magnetometer surveys conducted at the Diary identified magnetic signatures spatially associated with sub-surface locations of drain tiles, a 12-inch pipe,...

Resource Type:

Dissertation
Magneto-crystalline anisotropy calculation in thin films with defects

Creator:

Matusevich, David Sergio

Abstract:

The code is developed for the calculation of the magneto-crystalline anisotropy (MAE) in thin films using a classical Heisenberg hamiltonian with a correction developed by Van Vleck. A Metropolis style Monte Carlo algorithm was used with adequate corrections to accelerate the calculation. The MAE was calculated for the case of...

Resource Type:

Dissertation

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Academic Affiliation

Physics12

Advisor

Jansen, Henri J. F.12
Hetherington, William M.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1988 to 2008

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Committee Member

Giebultowicz, Tom2
Hamby, David M.1
Hetherington, William M.1
Krane, Kenneth S.1
Landau, Rubin H.1
more Committee Members »

Creator

Albus, Alexander P.1
Decker, Mike W.1
Dorsett, Skye Forrest1
Gutekunst, Bernd1
Matusevich, David Sergio1
more Creators »

Date

Date range begin – Date range end

Current results range from 1987 to 2008

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Decade

2000-20095
1990-19996
1980-19891

Degree Field

Physics12

Degree Level

Doctoral7
Master's5

Degree Name

Doctor of Philosophy (Ph.D.)7
Master of Science (M.S.)5

File Format

application/pdf1

Language

English [eng]12

License

All rights reserved3

Non-Academic Affiliation

Oregon State University. Graduate School12

Peer Reviewed

No12

Resource Type

Dissertation7
Masters Thesis5

Rights Statement

Copyright Not Evaluated8
In Copyright4

Subject

Anisotropy3
Density functionals3
Electron gas2
Electronic structure2
Iron -- Magnetic properties2
more Subjects »

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