QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: victorwu on January 13, 2010, 10:31

Title: questions about k-resolved transmission
Post by: victorwu on January 13, 2010, 10:31

  Hello everyone!
  Can someone give me explantion (or the details) about the calculation of transmission in ATK2008? The main part I cannot understand is why it is k-resolved. Thank you very much.

Title: Re: questions about k-resolved transmission
Post by: Anders Blom on January 13, 2010, 19:51

The probability that an electron is transferred from the left electrode to the right electrode is a function of the energy (as we see in the transmission spectrum) but also of the electron's incident momentum k = (kx,ky). Electrons with kx=ky=0 are traveling parallel to the z axis, but for other values of kx and ky, the electron is traveling at an angle, determined by the projection of the vector k onto the z axis.

I think slide 13 of Part 2 of the presentation "ATK Tutorial (What Everyone Should Know About ATK)" at http://quantumwise.com/tutorials will be useful for you.

Title: Re: questions about k-resolved transmission
Post by: victorwu on January 23, 2010, 06:26

Thank you.