Dear ATK team,
I have reproduced a recent published paper of Gao et al. (APL Materials, 2, 056105 (2014),
http://dx.doi.org/10.1063/1.4876635)
They calculated contact resistance by the ATK code, as shown in eq. (1), I wonder how to get the contact resistance in ATK code.
I cannot find exact contact resistance but the Transmission coefficient.
Is the transmission coefficient related with the Contact resistance?
And another question is how to figure out the ATK code the contact resistance at 0 V bias.
To my knowledge, dI/dV shows conductance after I-V calculation.
Does the contact resistance mean the dI/dV value at 0 V after successive bias calculation?
If so, I'd like to know how much interval bias is resonable to calculation dI/dV.
Thank you in advance for your answers.