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An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO3 - Bi(Zn1/2Ti1/2)O3, An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO₃ − Bi(Zn₁/₂Ti₁/₂)O₃

Creator:: Jackson, Dennis L.
Abstract:: We developed a model to investigate the dielectric properties of the BaTiO₃ − Bi(Zn₁/₂Ti₁/₂)O₃ (BT-BZT) solid solution, which is a relaxor ferroelectric and exhibits long range disorder. The model uses ab initio methods to determine all polarization states for every atomic configuration of 2 x 2 x 2 supercells of...
Resource Type:: Dissertation
Full Text:: Predict Dielectric Properties of the Relaxor Ferroelectric Solid Solution BaTiO3 - Bi(Zn1/2Ti1/2)O3

Synthesis and Analysis of Heterostructural Semiconductor Alloy Sn1-xCaxCh (Ch=S, Se) and Nitrides Zn1-xWxN and Zn1-x(W1-yMoy)xN

Creator:: Matthews, Bethany E.
Abstract:: This work explores the synthesis and characterization of the metastable alloys Sn1-xCaxCh (Ch= S, Se) and nitride compounds Zn-W-Mo-N, which have recently been predicted by theorists. Single phase thin films of Sn1-xCaxS are prepared by pulsed laser deposition and radio-frequency magnetron sputtering and of Sn1-xCaxSe are prepared by pulsed laser...
Resource Type:: Dissertation
Full Text:: increasing rapidly with added Ca. Sn1-xCaxSe samples were much more conductive with resistivities 10−2

Monte Carlo studies of classical Heisenberg spins on face-centered-cubic lattices : effects of strain, interlayer coupling, and dilution of lattice

Creator:: Park, Seongweon
Abstract:: This thesis presents the results from Monte Carlo calculations on classical vector spins in face-centered-cubic (FCC) lattices. The goal of the study was to understand the effect of interlayer coupling, dilution of magnetic atoms in the lattice, and symmetry-changing strain. Experimental work by T. M. Giebultowicz et al. and J....
Resource Type:: Dissertation
Full Text:: inspired my work [1, 2]. J. A. Borchers’s group studied NiO/CoO superlattices and observed that the

Gene Expression, Structure Elucidation, and Bioactivity of Aspergillus Natural Products

Creator:: Neuhaus, George F.
Abstract:: The study of natural products (NPs) and their application has shaped humanity. Starting with the idea of using plants as medicine, it has now grown into the science of purifying and identifying organic molecules from nature to study their inherent biological activities. Understanding the molecular structures of NPs is the...
Resource Type:: Dissertation
Full Text:: natural products .................................................................................. 2

Analysis of the mechanism of sulfoxide-lithium exchange and the reactive intermediate in stereospecific reagent-controlled homologation (StReCH)

Creator:: Hoyt, Amanda
Abstract:: The stereospecific reagent-controlled homologation (StReCH) of boronic esters with enantioenriched carbenoid species generated in situ by the addition of organolithium initiators to stereodefined α-chloroalkyl aryl sulfoxides was previously reported. The reaction of an organolithium with an α-chloroalkyl aryl sulfoxide ostensibly generates an α-chloroalkyllithium via sulfoxide-lithium exchange; however, the true nature...
Resource Type:: Masters Thesis
Full Text:: C22H21O2B: 328.16347). Laboratory notebook reference: ALH-61 and ALH-62 (±)-2-Phenethyl

Functional Materials and Techniques for Additive Manufacturing in Soft Robotics

Creator:: Walker, Stephanie
Abstract:: This thesis outlines the development of new elastomeric materials and manufacturing processes for soft robotics. Specifically, this work describes the development of custom material formulations for use in additive manufacturing, additive manufacturing processing techniques for silicone elastomers, and multi-component additive manufacturing techniques. Material synthesis and processing is a gap in...
Resource Type:: Dissertation
Full Text:: work (Chapter 2) outlines the development of a custom elastomer designed to make biodegradable soft

Development of Cu-based Thin Films for Optoelectronic Applications

Creator:: Angelos, Gregory S.
Abstract:: CIGS and CdTe based commercial thin-ﬁlm solar cells (TFSCs) require an absorber thickness greater than 2 µm and 4 µm, respectively, to adequately absorb the solar spectrum. To efficiently extract photoexcited electrons, these TFSCs require relatively defect-free absorbers with high-minority carrier mobility (> 100 cm2V−1s−1) and long lifetime (> 10...
Resource Type:: Dissertation
Full Text:: commercial thin-film solar cells (TFSCs) require an ab- sorber thickness greater than 2 µm and 4 µm

Classical Density Functional for the Weeks-Chandler-Andersen Soft-Sphere Repulsive Potential using Soft Fundamental Measure Theory

Creator:: Finster, Kirstie L.
Abstract:: We present a classical density functional to model the soft, repulsive potential of a Weeks-Chandler-Andersen (WCA) fluid using Soft Fundamental Measure Theory (SFMT) with temperature-dependent parameters inspired by the Barker-Henderson method. Our functional uses soft spheres to model the soft-sphere WCA potential, and gives results that are in good agreement...
Resource Type:: Dissertation
Full Text:: expressed in terms of a known reference fluid and a perturbative attractive potential Fex ≈ Fo + n2V 2

Evaluation of Stress Corrosion Cracking of 316L Stainless Steel in FLiNaK Using the Slow Strain Rate Technique

Creator:: Quintana, Xavier A.
Abstract:: Molten salts have been targeted as a promising coolant for next generation reactors due to their high boiling point, heat capacity, and thermal conductivity. Despite these benefits, molten salt systems present unique materials compatibility issues, highlighted by the aggressive corrosion attack and dealloying typically seen on materials in these environments....
Resource Type:: Masters Thesis
Full Text:: activity to establish a reference potential [2, 54]. Most DRE designs have used the Ni/Ni(II) redox couple

Fabrication and optical measurement of flip-chips for noninvasive electrostatic gating of nanomaterials

Creator:: Nichols, Dublin MacCray
Abstract:: Electrostatic gating of nanomaterials allows researchers to control carrier density and shape potential barriers that confine carriers. Lithographic patterning followed by metal deposition is the standard technique to define electrostatic gates; however, the methods of fabricating these devices often involve harsh processing. For example, taking a material to high temperatures...
Resource Type:: Capstone Project
Full Text:: .................................................................................................................................... 6 2. Flip-chip fabrication

ScholarsArchive@OSU

An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO3 - Bi(Zn1/2Ti1/2)O3, An Ising-like model to predict dielectric properties of the relaxor ferroelectric solid solution BaTiO₃ − Bi(Zn₁/₂Ti₁/₂)O₃

Synthesis and Analysis of Heterostructural Semiconductor Alloy Sn1-xCaxCh (Ch=S, Se) and Nitrides Zn1-xWxN and Zn1-x(W1-yMoy)xN

Monte Carlo studies of classical Heisenberg spins on face-centered-cubic lattices : effects of strain, interlayer coupling, and dilution of lattice

Gene Expression, Structure Elucidation, and Bioactivity of Aspergillus Natural Products

Analysis of the mechanism of sulfoxide-lithium exchange and the reactive intermediate in stereospecific reagent-controlled homologation (StReCH)

Functional Materials and Techniques for Additive Manufacturing in Soft Robotics

Development of Cu-based Thin Films for Optoelectronic Applications

Classical Density Functional for the Weeks-Chandler-Andersen Soft-Sphere Repulsive Potential using Soft Fundamental Measure Theory

Evaluation of Stress Corrosion Cracking of 316L Stainless Steel in FLiNaK Using the Slow Strain Rate Technique

Fabrication and optical measurement of flip-chips for noninvasive electrostatic gating of nanomaterials

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