S
Sergey Y. Savrasov
Researcher at University of California, Davis
Publications - 113
Citations - 23463
Sergey Y. Savrasov is an academic researcher from University of California, Davis. The author has contributed to research in topics: Topological insulator & Electronic structure. The author has an hindex of 34, co-authored 112 publications receiving 19950 citations. Previous affiliations of Sergey Y. Savrasov include Rutgers University & New Jersey Institute of Technology.
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Electron-energy-loss spectra and the structural stability of nickel oxide: An LSDA+U study
Sergei L. Dudarev,Gianluigi A. Botton,Sergey Y. Savrasov,Colin J. Humphreys,Adrian P. Sutton +4 more
TL;DR: In this article, the authors improved the description of both electron energy loss spectra and parameters characterizing the structural stability of the material compared with local spin density functional theory by taking better account of electron correlations in the $3d$ shell of metal ions in nickel oxide.
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Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates
Xiangang Wan,Ari M. Turner,Ashvin Vishwanath,Ashvin Vishwanath,Sergey Y. Savrasov,Sergey Y. Savrasov +5 more
TL;DR: In this paper, the topological semimetal, a three-dimensional phase of a magnetic solid, is described and it may be realized in a class of pyrochlore iridates based on calculations using the LDA+U$ method.
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Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
TL;DR: In this article, the electronic structure of pyrochlore iridates was investigated using density functional theory, LDA+U method, and effective low energy models, and a remarkably rich phase diagram emerges on tuning the correlation strength U.
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Electronic structure calculations with dynamical mean-field theory
Gabriel Kotliar,Sergey Y. Savrasov,Kristjan Haule,V. S. Oudovenko,Olivier Parcollet,Chris A. Marianetti +5 more
TL;DR: In this article, a review of the basic ideas and techniques of spectral density functional theory which are currently used in electronic structure calculations of strongly correlated materials where the one-dimensional electron description breaks down is presented.
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Linear-response theory and lattice dynamics: A muffin-tin-orbital approach
TL;DR: A detailed description of a method for calculating static linear-response functions in the problem of lattice dynamics based on density functional theory and it uses linear muffin-tin orbitals as a basis for representing first-order corrections to the one-electron wave functions.