Experience
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Education
Volunteer Experience
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Committee member, team captain
American Cancer Society's Relay for Life
- Present 17 years 11 months
Health
Publications
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Lithium self-diffusion in a model lithium garnet oxide Li5La3Ta2O12: A combined quasi-elastic neutron scattering and molecular dynamics study
Solid State Ionics
See publicationIn this work lithium self-diffusion in the model lithium garnet oxide Li5La3Ta2O12 was investigated by combining quasi-elastic neutron scattering experiments and molecular dynamics simulation. The Q-dependence of the quasi-elastic broadening measured experimentally and of the mean relaxation rate of lithium calculated by molecular dynamics simulations were both well described by the Singwi-Sjölander diffusion model. This model describes lithium nuclei that undergo diffusion via a jump-type…
In this work lithium self-diffusion in the model lithium garnet oxide Li5La3Ta2O12 was investigated by combining quasi-elastic neutron scattering experiments and molecular dynamics simulation. The Q-dependence of the quasi-elastic broadening measured experimentally and of the mean relaxation rate of lithium calculated by molecular dynamics simulations were both well described by the Singwi-Sjölander diffusion model. This model describes lithium nuclei that undergo diffusion via a jump-type mechanism consisting of a distribution of jumps with a mean square jump distance and residence time. The extracted mean jump length is consistent with a jump between tetrahedral (24d) to octahedral (48g and 96h) sites within the symmetry structure and the residence time of Li at these sites obeys an Arrhenius relation from ~ ps timescales at 1100 K to the ~ ns range at 400 K. This result supports a lithium diffusion mechanism in which jumps are more frequent (smaller residence time) and shorter at higher temperature. The self-diffusivities of Li from both experiment and calculation were in good agreement, but deviations from those previously measured using nuclear magnetic resonance and muon spin relaxation were observed and discussed. Analysis of stretching parameter describing the relaxation of lithium calculated by molecular dynamics indicated that Li motion is more cooperative at shorter length scales, below ~ 4.4 Å, which corresponds to the distance between octahedral sites across the tetrahedral site.
Courses
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Calculus II
LB 119
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Calculus III
LB 220
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Cells and Molecules
BS 161
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Chemistry Laboratory II
CEM 162
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Comprehensive Biochemistry
BMB 401
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Intro to HPS of Science
LB 133
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Introduction to Engineering Design
EGR 100
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Introduction to Engineering Modeling
EGR 102
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Material and Energy Balances
CHE 201
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Organic Chemistry I
CEM 251
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Organic Chemistry II
CEM 252
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Physics for Scientists and Engineers I
PHY 183
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Society and the Individual
ISS 210
Honors & Awards
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Michigan State University Lyman Briggs College Dean's List
Michigan State University Lyman Briggs College
Received fall semester 2014 and spring semester 2015
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