QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: Nayab Shiraz on July 3, 2020, 16:34

Title: momentum resolved transmission spectrum
Post by: Nayab Shiraz on July 3, 2020, 16:34

What information can be obtained by momentum resolved transmission spectrum of a material?
For instance, if it shows that at a certain energy, certain k points show high transmission, what does that physically mean?

Title: Re: momentum resolved transmission spectrum
Post by: Daniele Stradi on July 6, 2020, 08:41

Hello,

>>> For instance, if it shows that at a certain energy, certain k points show high transmission, what does that physically mean?

For a periodic material, it means that for that specific value of energy and parallel momentum, the probability of ballistic electron/hole transport through the material will be high. For a device configuration, it means that the probability of source-to-drain ballistic electron transport will be high.

Best regards,
Daniele