Ab-initio investigation of AGeO3 (A = Ca, Sr) compounds via Tran–Blaha-modified Becke–Johnson exchange potential
Behram Rasul Bakhsh1, 2, Iqbal M A3, Rashid Muhammad4, †, Atif Sattar M5, Mahmood Asif6, Ramay Shahid M7, ‡
       

(color online) Energy–optical parameters: (a) absorption coefficient, (b) optical conductivity, (c) reflectivity, and (d) optical loss factor for CaGeO3 and SrGeO3 by using the mBJ potential.