Výsledky vyhledávání - "Robert J. Colby"

Quantifying Induced Polarization of Conductive Inclusions in Porous Media and Implications for Geophysical Measurements

Autor: Deniz Ertas, Lang Feng, Katie M. Walker, Harry W. Deckman, Stephen D. Cameron, Robert J. Colby, Li Qiuzi, Kuang He

Publikováno v: Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
Scientific Reports

Induced polarization (IP) mapping has gained increasing attention in the past decades, as electrical induced polarization has been shown to provide interesting signatures for detecting the presence of geological materials such as clay, ore, pyrite, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d57c97a3dfbdab19422e23fbcd4b59f
https://doi.org/10.1038/s41598-020-58390-z

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Template-Free Self-Assembly of Mesoporous Organosilicas

Autor: Mobae Afeworki, Brian K. Peterson, David C. Calabro, Manesh Gopinadhan, Quanchang Li, Meghan L. Nines Kochersperger, Michael Sansone, Robert J. Colby, Simon C. Weston, Nicole Callen

Publikováno v: Chemistry of Materials. 30:2218-2228

Using a known organosilane building block (1,1,3,3,5,5-hexaethoxy-1,3,5-trisilacyclohexane), materials with unexpectedly high surface area (>1200 m2/g) and porosity with narrow pore-size distributions were synthesized in the total absence of pore-tem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dccbd0369b264cb14d7af5b97f0979ec
https://doi.org/10.1021/acs.chemmater.7b04480

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Simulation of heterogeneous atom probe tip shapes evolution during field evaporation using a level set method and different evaporation models

Autor: Arun Devaraj, Wei Xu, Robert J. Colby, Suntharampillai Thevuthasan, Zhijie Xu, Dongsheng Li, David J. Larson, Brian P. Geiser

Publikováno v: Computer Physics Communications. 189:106-113

In atom probe tomography (APT), accurate reconstruction of the spatial positions of field evaporated ions from measured detector patterns depends upon a correct understanding of the dynamic tip shape evolution and evaporation laws of component atoms.

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Strain-dependence of the structure and ferroic properties of epitaxial Ni1−xTi1−yO3 thin films grown on sapphire substrates

Autor: Mark E. Bowden, Sandeep Manandhar, Vaithiyalingam Shutthanandan, Tamas Varga, Sean A. Stephens, Robert J. Colby, Dehong Hu, Scott A. Chambers, Timothy C. Droubay, William A. Shelton

Publikováno v: Thin Solid Films. 578:113-123

Polarization-induced weak ferromagnetism has been predicted a few years back in compounds MTiO 3 (M = Fe, Mn, Ni) (Fennie, 2008). We set out to stabilize this metastable, distorted perovskite structure by growing NiTiO 3 epitaxially on sapphire Al 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbfa665228fb9bae677b421d4e88f86f
https://doi.org/10.1016/j.tsf.2015.02.016

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Growth and surface modification of LaFeO3 thin films induced by reductive annealing

Autor: Richard P. Oleksak, Kelvin H. L. Zhang, Michael A. Henderson, Mark H. Engelhard, Gregory S. Herman, Vaithiyalingam Shutthanandan, Suntharampillai Thevuthasan, Scott A. Chambers, Tamas Varga, Brendan T. Flynn, Robert J. Colby, Sandeep Manandhar

Publikováno v: Applied Surface Science. 330:309-315

The mixed electronic and ionic conductivity of perovskite oxides has enabled their use in diverse applications such as automotive exhaust catalysts, solid oxide fuel cell cathodes, and visible light photocatalysts. The redox chemistry at the surface

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Synthesis, Structure, and Spectroscopy of Epitaxial EuFeO3 Thin Films

Autor: Mark D. Scafetta, Christian M. Schlepütz, Robert J. Colby, Eun Ju Moon, David Keavney, Amber K. Choquette, Steven J. May

Publikováno v: Crystal Growth & Design. 15:1105-1111

Rare earth iron perovskites RFeO3, where R is a rare earth cation, exhibit an array of magnetic, catalytic, optical, and electrochemical properties. Here we study EuFeO3 films synthesized by molecular beam epitaxy to improve our understanding of the

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https://doi.org/10.1021/cg501403m

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