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GOLLUM:a next-generation simulation tool for electron, thermal and spin transport

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TLDR
In this article, the authors developed an efficient simulation tool "GOLLUM" for the computation of electrical, spin and thermal transport characteristics of complex nanostructures, which addresses a number of new challenges and functionalities that have emerged in nanoscale-scale transport over the past few years.
Abstract
We have developed an efficient simulation tool 'GOLLUM' for the computation of electrical, spin and thermal transport characteristics of complex nanostructures. The new multi-scale, multi-terminal tool addresses a number of new challenges and functionalities that have emerged in nanoscale-scale transport over the past few years. To illustrate the flexibility and functionality of GOLLUM, we present a range of demonstrator calculations encompassing charge, spin and thermal transport, corrections to density functional theory such as local density approximation + U ( LDA+ U) and spectral adjustments, transport in the presence of non-collinear magnetism, the quantum Hall effect, Kondo and Coulomb blockade effects, finite-voltage transport, multi-terminal transport, quantum pumps, superconducting nanostructures, environmental effects, and pulling curves and conductance histograms for mechanically-controlled break-junction experiments.

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Fast parallel algorithms for short-range molecular dynamics

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Wannier90 as a community code: new features and applications.

TL;DR: Wannier90 as mentioned in this paper is an open-source computer program for calculating maximally-localised Wannier functions (MLWFs) from a set of Bloch states, which is interfaced to many widely used electronic-structure codes thanks to its independence from the basis sets representing these BLoch states.
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Improvements on non-equilibrium and transport Green function techniques: The next-generation TRANSIESTA

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References
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Journal ArticleDOI

Generalized Gradient Approximation Made Simple

TL;DR: A simple derivation of a simple GGA is presented, in which all parameters (other than those in LSD) are fundamental constants, and only general features of the detailed construction underlying the Perdew-Wang 1991 (PW91) GGA are invoked.
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Self-Consistent Equations Including Exchange and Correlation Effects

TL;DR: In this paper, the Hartree and Hartree-Fock equations are applied to a uniform electron gas, where the exchange and correlation portions of the chemical potential of the gas are used as additional effective potentials.
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Inhomogeneous Electron Gas

TL;DR: In this article, the ground state of an interacting electron gas in an external potential was investigated and it was proved that there exists a universal functional of the density, called F[n(mathrm{r})], independent of the potential of the electron gas.
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Fast parallel algorithms for short-range molecular dynamics

TL;DR: In this article, three parallel algorithms for classical molecular dynamics are presented, which can be implemented on any distributed-memory parallel machine which allows for message-passing of data between independently executing processors.
Journal ArticleDOI

Self-interaction correction to density-functional approximations for many-electron systems

TL;DR: In this paper, the self-interaction correction (SIC) of any density functional for the ground-state energy is discussed. But the exact density functional is strictly selfinteraction-free (i.e., orbitals demonstrably do not selfinteract), but many approximations to it, including the local spin-density (LSD) approximation for exchange and correlation, are not.
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