[Vampier-magnetic material]1:cubic core-shell material

1:input file

注意:一但你使用了core-shell样式的材料
core-shell的高度就是system-size-z的高度

create:crystal-structure=fcc
create:particle
create:cube
dimensions:unit-cell-size=3.54
dimensions:system-size-x=8 !nm
dimensions:system-size-y=8!nm
dimensions:system-size-z=8!nm
dimensions:particle-size= 6 !nm  #6nm为颗粒的长宽,高仍然使用system-size-z的值
material:file=coreshell.mat
#---------------------------------------------------
# Simulation attributes
#---------------------------------------------------
sim:temperature=0.1
sim:total-time-steps=11000
sim:time-steps-increment=1000
sim:program=time-series
sim:integrator=monte-carlo
#---------------------------------------------------
# Data output
#---------------------------------------------------
output:time-steps
output:temperature
output:material-magnetisation
config:atoms
config:atoms-output-rate=10

2:material file

#----------------------------
materials:num-materials = 2
#----------------------------
material[1]:exchange-matrix[1] = 3.0e-21
material[1]:exchange-matrix[2] = 1.0e-21
material[1]:atomic-spin-moment = 2.0 !muB
material[1]:damping-constant = 1.0
material[1]:uniaxial-anisotropy-constant = 1.0e-24
#----------------------------
material[2]:exchange-matrix[1] = 1.0e-21
material[2]:exchange-matrix[2] = 3.0e-21
material[2]:atomic-spin-moment = 3.0 !muB
material[2]:damping-constant = 1.0
material[2]:uniaxial-anisotropy-constant = 1.0e-23

material[1]:core-shell-size = 1.0
material[2]:core-shell-size = 0.8

3:结构如下:

图片描述

4: 调整system-size-z为paticle-size之后的效果

图片描述

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