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Bobby G. Sumpter
Researcher at Oak Ridge National Laboratory
Publications - 652
Citations - 28014
Bobby G. Sumpter is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Polymer & Graphene. The author has an hindex of 60, co-authored 619 publications receiving 23583 citations. Previous affiliations of Bobby G. Sumpter include University of Florida & Cornell University.
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Electronic Structure Investigation of Surface−Adsorbate and Adsorbate−Adsorbate Interactions in Multilayers of CH4 on MgO(100)
TL;DR: In this paper, the adsorption of methane on MgO(100) was examined using extensive first-principles DFT methods combined with inelastic neutron scattering.
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Decoding Liquid Crystal Oligomer Phase Transitions: Toward Molecularly Engineered Shape Changing Materials
TL;DR: In this article, an integrated investigation of liquid crystal (LC) oligomers that combines experiments and molecular dynamics simulations to obtain a detailed understanding of the molecular struc... is described.
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Learning in continuous action space for developing high dimensional potential energy models
Sukriti Manna,Troy D. Loeffler,Rohit Batra,Suvo Banik,Henry Chan,Bilvin Varughese,Kiran Sasikumar,Michael Sternberg,Tom Peterka,Mathew J. Cherukara,Stephen K. Gray,Bobby G. Sumpter,Subramanian K. R. S. Sankaranarayanan +12 more
TL;DR: In this article , a decision tree based reinforcement learning (RL) strategy is proposed to solve the problem of continuous action space problems. But, it is not applicable to many other physical science problems involving search over continuous action spaces.
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Solvate Ionic Liquids at Electrified Interfaces.
TL;DR: Molecular dynamics simulation results for a prototypical SIL of lithium triglyme bis(trifluoromethanesulfonyl)imide sandwiched between electrified surfaces suggest that the electrochemical reduction of Li+ ions should be facilitated by the structural distortion, which suggests that the rational design of new SIL electrolytes should be considered.
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Atomistic details of disordering processes in superheated polymethylene crystals
TL;DR: In this paper, the atomic details of disordering in superheated polymethylene crystals have been studied using molecular dynamics simulations, showing that superheating causes a quick development of large-scale disorder throughout the crystal, including reorientation, translation and the destruction of crystal symmetry, followed ultimately by surface melting.