QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: kaypu on March 16, 2011, 15:21

Title: help me transmission spectrum
Post by: kaypu on March 16, 2011, 15:21

look at this Fig,  the transmission coefficient is larger than 2 in the transmission spectrum   is it right?

Title: Re: help me transmission spectrum
Post by: Anders Blom on March 16, 2011, 23:25

Sure. The transmission can be 4 or 5. It depends on how many open channels you have at each energy.

Title: Re: help me transmission spectrum
Post by: Nordland on March 17, 2011, 00:21

Yes.

The transmission spectrum is not the probability of an electron going through the device. The transmission spectrum is
the sum of probabilities for all the states that exist at the given energy.
Since a transmission spectrum is defined as such, the current and conductance can be derived directly from the transmission spectrum.

Title: Re: help me transmission spectrum
Post by: kaypu on March 18, 2011, 16:52

thank you very much  blom and nordland