Dear QE developers and users: I am wondering what should be the unit of the planar average data got from the average.x
I am calculating the planar average of charge density within a energy window. What I did is firstly using pp to get the integrated local density of states (ILDOS) of that energy window with plot_num=10, then using average.x to get the planar average. In this case, what is the unit of the second column (say, rho(z)) of the output file? I thought since the DOS has a unit of states/eV, the integration of DOS within a energy window should get some states or electrons. Then the unit of rho(z) should be electron/bohr. But seems it is not. In my case the energy window I concerned contains one electron, However, if I directly integrate rho(z), I can only get a very small value. If I assume the unit is electron/(bohr^3), the integretion of rho(z)*A is also smaller than one (here A is the area of xy plane). Can you help me about it? Thank you very much! Best, Ding-Fu *Ding-Fu Shao, Ph. D.* *Department of Physics and Astronomy, University of Nebraska-Lincoln* *Lincoln, NE **68588-0299* *Email: [email protected] <[email protected]>*
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