magnetic_barrier.m File Reference

Example to calculate the conductivity through a magnetic barrier. More...

Go to the source code of this file.

Functions
function	CalculateTransport ()
	number of energy points More...
function	CreateHandlesForMagneticField (B)
	Creates and set function handles of the magnetic vector potentials in the Ribbon class. More...
function	createVectorPotential (B)
	Creates the function handles of the magnetic vector potentials and the gauge field. More...
function	magnetic_barrier (filenum)
	Example to calculate the conductivity through a magnetic barrier. More...
function	PlotFunction ()
	Creates the plot. More...
function	setOutputDir ()
	Sets output directory. More...
function	Transport (Energy, B)
	Calculates the conductance at a given energy value. More...

Detailed Description

Example to calculate the conductivity through a magnetic barrier.

Parameters

filenum

The identification number of the filenema for the exported data (default is 1).

Available

EQuUs v4.8 or later

Expected result

Definition in file magnetic_barrier.m.

Function Documentation

CalculateTransport()

function CalculateTransport

(

)

number of energy points

Calculates the conductance

CreateHandlesForMagneticField()

function CreateHandlesForMagneticField

(

B

)

Creates and set function handles of the magnetic vector potentials in the Ribbon class.

Parameters

B	The magnetic field

createVectorPotential()

function createVectorPotential

(

B

)

Creates the function handles of the magnetic vector potentials and the gauge field.

Parameters

B	The magnetic field

Returns

[1] Function handle of the vector potential in the leads .

[2] Function handle of the vector potential in the scattering region.

[3] Function handle of the scalar potential that transforms vector potential in the scattering center into a vector potential in the leads.

magnetic_barrier()

function magnetic_barrier

(

filenum

)

Example to calculate the conductivity through a magnetic barrier.

Parameters

filenum

The identification number of the filenema for the exported data (default is 1).

PlotFunction()

function PlotFunction

(

)

Creates the plot.

setOutputDir()

function setOutputDir

(

)

Sets output directory.

Transport()

function Transport	(	Energy	,
		B
	)

Calculates the conductance at a given energy value.

Parameters

Energy	The energy value.
B	The magnetic field

Returns

Returns with teh calculated conductance and the unitarity error.