QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: Heinz on August 29, 2014, 20:54

Title: Optical conductivity
Post by: Heinz on August 29, 2014, 20:54

Hi,

In the manual here: http://www.quantumwise.com/documents/manuals/latest/ReferenceManual/index.html/ref.opticalspectrum.html it is said that the optical conductivity can be calculated from the susceptibility. However, when I calculate optical conductivity from the formula in this part of the manual, the obtained values are so low that it can only correspond to the 2D conductivity. Is the formula in the manual


          \sigma(\omega)  =  - i \omega \epsilon_0 \chi(\omega).
       

show 2D or 3D conductivity?

Thanks in advance.

Title: Re: Optical conductivity
Post by: kstokbro on September 1, 2014, 22:50

It is the 3D conductivity, please check with the units,
http://www.quantumwise.com/documents/manuals/latest/ReferenceManual/index.html/chap.appendix.html#sect1.appendix.optical