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Title

Siesta: Recent developments and applications

AuthorsGarcía Arribas, Alberto ; Papior, Nick; Akhtar, Arsalan; Artacho, Emilio; Blum, Volker; Bosoni, Emanuele; Brandimarte, Pedro; Brandbyge, Mads; Cerdá, J. I.; Corsetti, Fabiano; Cuadrado, Ramón ; Dikan, Vladimir ; Ferrer, Jaime ; Gale, Julian; García Fernández, Pablo; García-Suárez, Víctor M. ; García, Sandra; Huhs, Georg; Illera, Sergio; Korytár, Richard ; Koval, Peter; Lebedeva, Irina ; Lin, Lin; López Tarifa, Pablo; Mayo, Sara G.; Mohr, Stephan; Ordejón, Pablo ; Postnikov, Andrei; Pouillon, Yann ; Pruneda, Miguel ; Robles, Roberto ; Sánchez-Portal, Daniel ; Soler, José M.; Ullah, Rafi; Yu, Victor Wen-zhe; Junquera, Javier
KeywordsElectronic Structure Software
Spin-orbit interactions
Time dependent density functional theory
Multiscale methods
Molecular dynamics
Ballistic electron transport
Hybrid density functional calculations
Wannier functions
Ab initio electronic structure calculations
Density functional theory
High performance computing
Issue Date27-May-2020
PublisherAmerican Institute of Physics
CitationJournal of Chemical Physics 152: 204108 (2020)
AbstractA review of the present status, recent enhancements, and applicability of the SIESTA program is presented. Since its debut in the mid-1990s, SIESTA’s flexibility, efficiency, and free distribution have given advanced materials simulation capabilities to many groups worldwide. The core methodological scheme of SIESTA combines finite-support pseudo-atomic orbitals as basis sets, norm-conserving pseudopotentials, and a realspace grid for the representation of charge density and potentials and the computation of their associated matrix elements. Here, we describe the more recent implementations on top of that core scheme, which include full spin–orbit interaction, non-repeated and multiple-contact ballistic electron transport, density functional theory (DFT)+U and hybrid functionals, time-dependent DFT, novel reduced-scaling solvers, density-functional perturbation theory, efficient van der Waals non-local density functionals, and enhanced molecular-dynamics options. In addition, a substantial effort has been made in enhancing interoperability and interfacing with other codes and utilities, such as WANNIER90 and the second-principles modeling it can be used for, an AiiDA plugin for workflow automatization, interface to Lua for steering SIESTA runs, and various post-processing utilities. SIESTA has also been engaged in the Electronic Structure Library effort from its inception, which has allowed the sharing of various low-level libraries, as well as data standards and support for them, particularly the PSeudopotential Markup Language definition and library for transferable pseudopotentials, and the interface to the ELectronic Structure Infrastructure library of solvers. Code sharing is made easier by the new open-source licensing model of the program. This review also presents examples of application of the capabilities of the code, as well as a view of on-going and future developments. Published under license by AIP Publishing.
Publisher version (URL)http://dx.doi.org/10.1063/5.0005077
URIhttp://hdl.handle.net/10261/213028
ISSN0021-9606
E-ISSN1089-7690
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