<div dir="ltr"><div><div><div>Respected Wien Users<br><br></div>I am inexperience in calculating optical properties May any one guide me how to calculate Plasmon energy and Number of effective electrons ? After some effort I came to know that the energy associated to highest peak value in Electron loss plot will be Plasmon energy. While value for No of effective electrons can be obtained from X KRAM sumrule. Can Any one confirm this information true ? And which sum rule should be selected ? <br>
<br></div><div>Best Regards<br></div>M, Zaid<br></div><br></div>