TY - RPRT TI - Progress towards understanding ultranonlocality through the wave-vector and frequency dependence of approximate exchange-correlation kernels AU - Nepal, Niraj K. AU - Kaplan, Aaron D. AU - Pitarke, J. M. AU - Ruzsinszky, Adrienn PY - 2021 DO - 10.1103/physrevb.104.125112 UR - https://www.osti.gov/biblio/1851697 ID - 1851697 ER -