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lion_tiger

至尊木虫 (正式写手)

[求助] 计算的I-V曲线还是一个点,请帮忙检查

想计算连续偏压,得到I-V曲线,首先在VNL,scriper得到基本设置及计算脚本,施加偏压部分如下:
#----------------------------------------
# Device Calculator
#----------------------------------------
calculator = DeviceLCAOCalculator(
    basis_set=basis_set,
    exchange_correlation=exchange_correlation,
    numerical_accuracy_parameters=device_numerical_accuracy_parameters,
    electrode_calculators=
        [left_electrode_calculator, right_electrode_calculator],
    )

device_configuration.setCalculator(calculator)
nlprint(device_configuration)
device_configuration.update()
nlsave('D:/ATK/2/voltage3.nc', device_configuration)

# -------------------------------------------------------------
# Transmission spectrum
# -------------------------------------------------------------
根据手册和个人理解,修改如下:
#----------------------------------------
# Device Calculator
#----------------------------------------
voltage_list=numpy.linspace(0.0,1.0,5)*Volt
for voltage in voltage_list:
   
    calculator = DeviceLCAOCalculator(
    basis_set=basis_set,
    exchange_correlation=exchange_correlation,
    numerical_accuracy_parameters=device_numerical_accuracy_parameters,
    electrode_calculators=
        [left_electrode_calculator, right_electrode_calculator],
    electrode_voltages=(0.5*voltage,-0.5*voltage)
    )

device_configuration.setCalculator(calculator)
nlprint(device_configuration)
device_configuration.update()
nlsave('D:/ATK/2/voltage3.nc', device_configuration)

# -------------------------------------------------------------
# Transmission spectrum
# -------------------------------------------------------------
得到的I-V曲线还是一个点,请教各位高手,应该如何处理?
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ziyuns2001

金虫 (正式写手)

这个我见别人做过,要先把模型转换成另一种模型才能计算

发自小木虫Android客户端
2楼2016-06-12 23:02:45
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lion_tiger

至尊木虫 (正式写手)

引用回帖:
2楼: Originally posted by ziyuns2001 at 2016-06-12 23:02:45
这个我见别人做过,要先把模型转换成另一种模型才能计算

谢谢你的回复,已经很久的帖子了,请改为应助,给你发金币,表示一下
3楼2016-09-20 09:06:19
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