QuantumATK => General Questions and Answers => Topic started by: mbjavan on December 11, 2013, 08:11
Title: Spin polarized I-V curve plotting
Post by: mbjavan on December 11, 2013, 08:11
Dear ATK users, How can I plot the I-V curves for both spin up or down states in ATK.13.8 after full IV calulations? it seems that the I-V analyzer show in default state the up spin I-V results . Also it seems the transmission analyzer show in general properties the total current only in different bias voltages.
Thanks
Title: Re: Spin polarized I-V curve plotting
Post by: mbjavan on December 14, 2013, 07:10
is it possible extracting transmisstion spectra for both spin up and down from transmission analyzer part? how is it possible extracting from IVcurve calculation I_up and I_down?
Title: Re: Spin polarized I-V curve plotting
Post by: Anders Blom on December 15, 2013, 00:23
For now you are right, these tools only treat the Spin.Sum case. To get the current for a spin component, you can however in a script do
Code: python
t = TransmissionSpectrum(...) # or read "t" from a file if you have already computed it #t = nlread("file.nc", TransmissionSpectrum)[-1] i_up = t.current(spin=Spin.Up) i_dn = t.current(spin=Spin.Down)