First-principles investigation of structural, electronic, optical, and magnetic properties of a scintillating double perovskite halides (Cs<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si91.svg" display="inline" id="d1e1577"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>LiCeX<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si92.svg" display="inline" id="d1e1585"><mml:msub><mml:mrow/><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:msub></mml:math>) with (X = F, Br, and I)

A. Zaghrane, H. Ouhenou, E. Darkaoui, M. Agouri, A. Abbassi, Y. Mekaoui, S. Taj, B. Manaut