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| Título: | An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions |
Autor: | Mostofi, Arash A.; Yates, Jonathan R.; Souza, Ivo CSIC ORCID; Marzari, Nicola | Palabras clave: | Electronic structure Density functional theory Maximally-localised Wannier function |
Fecha de publicación: | 2014 | Editor: | Elsevier | Citación: | Computer Physics Communications 185(8): 2309-2310 (2014) | Resumen: | wannier90 is a program for calculating maximally-localised Wannier functions (MLWFs) from a set of Bloch energy bands that may or may not be attached to or mixed with other bands. The formalism works by minimising the total spread of the MLWFs in real space. This is done in the space of unitary matrices that describe rotations of the Bloch bands at each k-point. As a result, wannier90 is independent of the basis set used in the underlying calculation to obtain the Bloch states. Therefore, it may be interfaced straightforwardly to any electronic structure code. The locality of MLWFs can be exploited to compute band-structure, density of states and Fermi surfaces at modest computational cost. Furthermore, wannier90 is able to output MLWFs for visualisation and other post-processing purposes. Wannier functions are already used in a wide variety of applications. These include analysis of chemical bonding in real space; calculation of dielectric properties via the modern theory of polarisation; and as an accurate and minimal basis set in the construction of model Hamiltonians for large-scale systems, in linear-scaling quantum Monte Carlo calculations, and for efficient computation of material properties, such as the anomalous Hall coefficient. We present here an updated version of wannier90, wannier90 2.0, including minor bug fixes and parallel (MPI) execution for band-structure interpolation and the calculation of properties such as density of states, Berry curvature and orbital magnetisation. wannier90 is freely available under the GNU General Public License from http://www.wannier.org/. | Descripción: | et al. | Versión del editor: | http://dx.doi.org/10.1016/j.cpc.2014.05.003 | URI: | http://hdl.handle.net/10261/136867 | DOI: | 10.1016/j.cpc.2014.05.003 | Identificadores: | doi: 10.1016/j.cpc.2014.05.003 issn: 0010-4655 |
| Aparece en las colecciones: | (CFM) Artículos |
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| version wannier90.pdf | 91,26 kB | Adobe PDF |  Visualizar/Abrir |
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