7 Mar
2014
7 Mar
'14
3:17 a.m.
Dear Christoph,
Thanks, that is very helpful.
Best,
Qingtian
2014-03-06 22:50 GMT+08:00
Hi Qingtian,
I suggest to put spin-up and spin-down on separate lattices, like in
http://kwant-project.org/doc/1.0/tutorial/tutorial5#lattice-description-usin... This will split each lead into a spin-up and a spin-down lead and you can easily calculate transmission between them.
Best, Christoph
PS
Another, more general but also way more advanced solution would be to get the wave functions of the lead modes, and project the spin current operator on them. (Note that the object returned by kwant.smatrix contains the wave functions of the modes:
http://kwant-project.org/doc/1.0/reference/generated/kwant.solvers.common.SM... )