Finite Differences Toolbox ========================== This small software package contains all tools which are needed to use Vienna Ab-initio Simulation Package (VASP) for calculation of magnetic, dielectric, and magnetoelectric response properties of simple materials. The methodology for these calculations is described in the following references: Ab Initio Indications for Giant Magnetoelectric Effects Driven by Structural Softness Wojdel, Jacek C.; Iniguez, Jorge Physical Review Letters Vol: 105 ( 3 ) 037208 2010 DOI: http://dx.doi.org/10.1103/PhysRevLett.105.037208 Magnetoelectric Response of Multiferroic BiFeO3 and Related Materials from First-Principles Calculations Wojdel, Jacek C.; Iniguez, Jorge Physical Review Letters Vol: 103 ( 26 ) 267205 2009 DOI: http://dx.doi.org/10.1103/PhysRevLett.103.267205 First-Principles Approach to Lattice-Mediated Magnetoelectric Effects Iniguez, Jorge Physical Review Letters Vol: 101 ( 11 ) 117201 2008 DOI: http://dx.doi.org/10.1103/PhysRevLett.101.117201 This code can be used and distributed under licence terms described in LICENSE file.