Author Topic: Question about I-V calculation  (Read 2546 times)

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Offline Pagani

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Question about I-V calculation
« on: December 2, 2012, 18:38 »
When I calculated the I-V data, the script died.
My script is:

device_configuration = nlread('C:/Documents and Settings/Lue/My
                                Documents/Au_A1.nc', object_id='gID000')[0]
calculator = device_configuration.calculator()
# Define bias voltages
voltage_list= 0.1 *numpy.arange(1,15)*Volt
#make loop
for voltage in voltage_list:
  # Set new calculator with modified electrode voltages on the configuration
  # use the self consistent state of the old calculation as starting input.
  device_configuration.setCalculator(
     calculator(electrode_voltages=(-0.5*voltage, 0.5*voltage)),
     initial_state=device_configuration)

  # Calculate the transmission spectrum
  transmission_spectrum = TransmissionSpectrum(
     configuration=device_configuration,
     energies=numpy.linspace(-5,5,301)*eV,
     kpoints=MonkhorstPackGrid(3,3),
     )

  #save the results
  nlsave('au_dtb_au.nc', device_configuration)
  nlsave('au_dtb_au.nc', transmission_spectrum)


Then, after the Job Manager showed "the left electrode chemical potential = -1.653V, the right electrode chemical potential = -1.753V", the script execution error! Why? My ATK version is 11.2.2

Offline kstokbro

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Re: Question about I-V calculation
« Reply #1 on: December 2, 2012, 21:55 »
your script looks correct, we will need more details in order to help you.
Please try the latest version 12.8, if you still have problems please make your nc file available to us and we can test your calculation