S
Sergey V. Barabash
Researcher at University of California, Los Angeles
Publications - 19
Citations - 782
Sergey V. Barabash is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Layer (electronics) & Dielectric. The author has an hindex of 11, co-authored 19 publications receiving 713 citations. Previous affiliations of Sergey V. Barabash include National Renewable Energy Laboratory.
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Magnetism without Magnetic Ions: Percolation, Exchange, and Formation Energies of Magnetism-Promoting Intrinsic Defects in CaO
TL;DR: Total-energy calculations for CaO show that due to the high vacancy formation energy even under the most favorable growth conditions one can not obtain more than 0.003% or 10(18) cm(-3) vacancies at equilibrium, showing that a nonequilibrium vacancy-enhancement factor of 10(3) is needed to achieve magnetism in such systems.
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Nonstoichiometry as a source of magnetism in otherwise nonmagnetic oxides : magnetically interacting cation vacancies and their percolation
TL;DR: In this paper, the physical conditions required for the creation of collective ferromagnetism in nonmagnetic oxides by intrinsic point defects such as vacancies were discussed, and the minimum percolation concentration needed to achieve wall-to-wall percolations in a given lattice was derived.
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First-Principles Theory of Competing Order Types, Phase Separation, and Phonon Spectra in Thermoelectric AgPb m SbTe m + 2 Alloys
TL;DR: In this paper, a first-principles cluster expansion was used to shed light on the solid-state phase diagram and structure of the recently discovered high-performance Pb-Ag-Sb-Te thermoelectrics.
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Prediction of unusual stable ordered structures of Au-Pd alloys via a first-principles cluster expansion
TL;DR: In this paper, an iterative procedure was proposed to predict the formation enthalpy of an arbitrary fcc lattice configuration with precision comparable to that of ab initio calculations themselves.
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First-principles combinatorial design of transition temperatures in multicomponent systems: the case of Mn in GaAs.
TL;DR: The general approach of cluster expanding physical properties opens the way to design based on exploring a large space of configurations by parametrizing the TC of a set of approximately 50 input configurations in terms of configuration variables ("cluster expansion").