| Re: NEGF in Graphene ( No.1 )|
- Date: 2015/08/06 11:05
- Name: T. Ozaki
> So would not the total current be 3.325e-8 * 2(for spin) * number of k-points?
No, it wouldn't be. Since the average current is calculated by integrating all the contributions
in the Brillouin zone as shown in Eqs. (51-53) in PRB 81, 035116, you should not multiply
the number of k-points.
Each of 30 tran#_% files contain each transmission. If you would like to see the average one,
you have to sum up all the contributions and divide it by the number of k-points.
| Re: NEGF in Graphene ( No.2 )|
- Date: 2015/08/08 23:34
- Name: Khalid <email@example.com>
- Dear Sir,
Thank you very much for your kind help. I have gone through the paper, and found that the total transmission is an integration of the k-resolved transmission. I have done that numerically, and there is some mismatch in the current result, I believe that is due to the numerical inaccuracy in my calculation (I used simple trapezoidal rule to integrate T(E)*(f1 - f2) to determine the current).
Thanks again sir, it was very generous of you to answer my question.