Package etomica.spin.heisenberg

Class Heisenberg

java.lang.Object

etomica.simulation.Simulation

etomica.spin.heisenberg.Heisenberg

public class Heisenberg
extends Simulation

Compute the dielectric constant of 2D interacting Heisenberg model in conventional way and mapped averaging. Conventional way: get the -bt*bt* with M is the total dipole moment; Mapped averaging: get the A_EE secondDerivative of free energy w.r.t electric field E when E is zero Prototype for simulation of a more general magnetic system.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Heisenberg.Param

Field Summary

Fields

Modifier and Type	Field	Description
Box	box
MCMoveRotate	mcMove
P2Spin	potential
PotentialMasterSite	potentialMaster
SpeciesGeneral	spins

Fields inherited from class etomica.simulation.Simulation

eventManager, random, seeds, space

Constructor Summary

Constructors

Constructor	Description
Heisenberg(Space space, int nCells, double temperature, double interactionS, double dipoleMagnitude)	2D heisenberg model in square lattice.

Method Summary

Modifier and Type	Method	Description
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from class etomica.simulation.Simulation

addBox, addSpecies, box, getBox, getBoxCount, getBoxes, getController, getEventManager, getIntegrator, getRandom, getRandomSeeds, getSpace, getSpecies, getSpeciesCount, getSpeciesList, makeBox, makeBox, makeUniqueElementSymbol, removeBox, setRandom, species

Field Detail

potentialMaster

public PotentialMasterSite potentialMaster

box

public Box box

spins

public SpeciesGeneral spins

potential

public P2Spin potential

mcMove

public MCMoveRotate mcMove

Constructor Detail

Heisenberg

public Heisenberg(Space space,
                  int nCells,
                  double temperature,
                  double interactionS,
                  double dipoleMagnitude)

2D heisenberg model in square lattice.

Parameters:

space - use to define vector/tensor

nCells - total number of atoms = nCells*nCells

interactionS - the J in heisenberg energy function: U = J*Cos(theta1-theta2)

dipoleMagnitude - is the strength of heisenberg dipole.

Method Detail

main

public static void main(java.lang.String[] args)