README
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vinamax
Vinamax is a macrospin simulation tool for nanoparticles.
Documentation
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Overview ¶
Contains function to control the output of the program
Index ¶
- Variables
- func AddAnisotropicParticle(x, y, z, ux, uy, uz float64)
- func Addfixedparticle(x, y, z, mx, my, mz float64)
- func Addsingleparticle(x, y, z float64)
- func Anisotropy_axis(x, y, z float64)
- func Anisotropy_random()
- func Anisotropy_random_xy()
- func C1anisotropy_axis(x, y, z float64)
- func C2anisotropy_axis(x, y, z float64)
- func Demagevery(t float64)
- func E_anis() float64
- func E_demag() float64
- func E_therm() float64
- func E_total() float64
- func E_zeeman() float64
- func Give_mz() float64
- func Lognormal_diameter(mean, stdev float64)
- func M_MSM(tmag, field float64)
- func M_random()
- func M_random_xy()
- func M_uniform(x, y, z float64)
- func Maketree()
- func Msat(x float64)
- func Output(interval float64)
- func Particle_radius(x float64)
- func Particle_radius_h(x float64)
- func Relax()
- func ReturnParticle(num int) *particle
- func Run(time float64)
- func Save(a string)
- func Setgeorandomseed(a int64)
- func Setrandomseed(a int64)
- func Setrandomseed_anis(a int64)
- func Setsolver(a string)
- func Setviscosity(visc float64)
- func Tableadd(a string)
- func Tableadd_b_at_location(x, y, z float64)
- func Tablesave()
- func U2anisotropy_axis(x, y, z float64)
- func World(x, y, z, r float64)
- func Writeintable(a string)
- type Cube
- type Cuboid
Constants ¶
This section is empty.
Variables ¶
var ( //These variables can be set in the input files B_ext func(t float64) (float64, float64, float64) // External applied field in T B_ext_space func(t, x, y, z float64) (float64, float64, float64) // External applied field in T Dt float64 = -1 // Timestep in s Mindt float64 = 1e-20 //smallest allowed timestep Maxdt float64 = 1 //largest allowed timestep T float64 // Time in s Alpha float64 = -1 // Gilbert damping constant Temp float64 = -1 // Temperature in K Ku1 float64 = 0 // Uniaxial anisotropy constant in J/m**3 Ku2 float64 = 0 // Uniaxial anisotropy constant in J/m**3 Kc1 float64 = 0 // Cubic anisotropy constant in J/m**3 Errortolerance float64 = 1e-5 Thresholdbeta float64 = 0.3 // The threshold value for the FMM Universe node // The entire Universe of the simulation FMM bool = false // Calculate demag with FMM method Demag bool = true // Calculate demag Adaptivestep bool = false Tau0 float64 = 1e-8 Jumpnoise bool = false Brown bool = false BrownianRotation bool = false //noMagDyn bool = false //set this to true to skip calculations of magnetisation dynamics Condition_1 bool = false Condition_2 bool = false Test bool = false Counter int = 0 Max_u_anis_x float64 = 0. Max_u_anis_z float64 = 0. Min_u_anis_x float64 = 1. Min_u_anis_z float64 = 1. Max_u_anis_x_2 float64 = 0. Max_u_anis_z_2 float64 = 0. Min_u_anis_x_2 float64 = 1. Min_u_anis_z_2 float64 = 1. Trigger bool = false Freq float64 = 0.0 Print1 bool = false Print0 bool = false Nsteps int = 0 )
Functions ¶
func AddAnisotropicParticle ¶
func AddAnisotropicParticle(x, y, z, ux, uy, uz float64)
func Addfixedparticle ¶
func Addfixedparticle(x, y, z, mx, my, mz float64)
func Addsingleparticle ¶
func Addsingleparticle(x, y, z float64)
func Anisotropy_axis ¶
func Anisotropy_axis(x, y, z float64)
Gives all particles the same specified uniaxialanisotropy-axis
func Anisotropy_random_xy ¶
func Anisotropy_random_xy()
Gives all particles a random anisotropy-axis in the xy plane
func C1anisotropy_axis ¶
func C1anisotropy_axis(x, y, z float64)
Gives all particles the same specified cubic1anisotropy-axis
func C2anisotropy_axis ¶
func C2anisotropy_axis(x, y, z float64)
Gives all particles the same specified cubic2anisotropy-axis, must be orthogonal to c1
func Lognormal_diameter ¶
func Lognormal_diameter(mean, stdev float64)
set the radius of all entries in radii to a diameter taken from a lognormal distribution with specified mean and stdev
func M_MSM ¶
func M_MSM(tmag, field float64)
Gives all particles magnetisation specified by the moment superposition model
func M_random_xy ¶
func M_random_xy()
Gives all particles with random magnetisation orientation in the xy plane
func M_uniform ¶
func M_uniform(x, y, z float64)
Gives all particles a specified magnetisation direction
func Maketree ¶
func Maketree()
Build the tree needed for the FMM method, descends in the "Universe" node
func Output ¶
func Output(interval float64)
Sets the interval at which times the output table has to be written
func Particle_radius ¶
func Particle_radius(x float64)
Sets the radius of all entries in radii to a constant value
func Particle_radius_h ¶
func Particle_radius_h(x float64)
Sets the hydrodynamic radius of all entries in radii to a constant value or constant coating in case core distribution
func ReturnParticle ¶
func ReturnParticle(num int) *particle
func Save ¶
func Save(a string)
Saves different quantities. At the moment only "geometry" and "m" are possible
func Setrandomseed_anis ¶
func Setrandomseed_anis(a int64)
Set the randomseed for the anisotropy dynamics
func Setviscosity ¶
func Setviscosity(visc float64)
Sets viscosity of particles to be added directly to the Universe
func Tableadd ¶
func Tableadd(a string)
adds a quantity to the output table, at the moment only "B_ext" is possible
func Tableadd_b_at_location ¶
func Tableadd_b_at_location(x, y, z float64)
Adds the field at a specific location to the output table
func U2anisotropy_axis ¶
func U2anisotropy_axis(x, y, z float64)
Gives all particles the same specified second uniaxial anisotropy-axis
func Writeintable ¶
func Writeintable(a string)
Types ¶
type Cube ¶
type Cube struct {
S float64 //side
// contains filtered or unexported fields
}
func (Cube) Addparticles ¶
Adds a number of particles at random locations in a cubic region
func (Cube) Setviscosity ¶
Sets viscosity of particles in the cube (e.g. different viscosity regions possible)
type Cuboid ¶
type Cuboid struct {
Sidex, Sidey, Sidez float64 //side
// contains filtered or unexported fields
}
func (Cuboid) Addparticles ¶
Adds a number of particles at random locations in a cubic region
func (Cuboid) Setviscosity ¶
Sets viscosity of particles in the cuboid (e.g. different viscosity regions possible)
Source Files
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Directories
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| Path | Synopsis |
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examples
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example3
This example shows the agreement between the Dipole approximation Method implementation and the brute force implementation of the magnetostatic interaction.
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This example shows the agreement between the Dipole approximation Method implementation and the brute force implementation of the magnetostatic interaction. |
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tester/ACS_Brownian_particles
This examples checks if 250 particles with only Brownian relaxation behaves according to the LRT model for ACS This examples checks if 250 particles with only Brownian relaxation behaves according to the LRT model for ACS This examples checks if 250 particles with only Brownian relaxation behaves according to the LRT model for ACS
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This examples checks if 250 particles with only Brownian relaxation behaves according to the LRT model for ACS This examples checks if 250 particles with only Brownian relaxation behaves according to the LRT model for ACS This examples checks if 250 particles with only Brownian relaxation behaves according to the LRT model for ACS |
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tester/field_relaxation
This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This example shows the agreement between the Dipole approximation Method implementation and the brute force implementation of the magnetostatic interaction.
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This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This examples checks if 1000 particles relax to a perpendicular field according to reeves and weaver 2015 This example shows the agreement between the Dipole approximation Method implementation and the brute force implementation of the magnetostatic interaction. |