Show Posts
1
General Questions and Answers / Transmission eigenvalue and eigenstates
« on: March 27, 2016, 15:46 »
I have done a calculation on a 2 dimensional system with ATK to study it's spin-dependent transport properties. However after the transmission spectrum was generated, I can not calculate the transmission eigenvalue in one of the transmission "peak", let along eigenstates. (The "peak"s transmission is about 0.15. )
After I tried to calculate the eigenvalue in VNL, I tried to use script, and ended up with the following sentence
"Number of transmission modes = 0"
Since I have obtained a rather big transmission coefficient, I think no transmission channel in this system is rather strange.
BTW, I have also calculated the same system under bias and the current is bigger (*10) than some other published research, although the transmission is about 3 orders below.
Can any one help please?
After I tried to calculate the eigenvalue in VNL, I tried to use script, and ended up with the following sentence
"Number of transmission modes = 0"
Since I have obtained a rather big transmission coefficient, I think no transmission channel in this system is rather strange.
BTW, I have also calculated the same system under bias and the current is bigger (*10) than some other published research, although the transmission is about 3 orders below.
Can any one help please?