Direct Bandgap Behavior in Rashba‐Type Metal Halide Perovskites

The authors acknowledge financial support from the Engineering and Physical Sciences Research Council of the UK (EPSRC). J.M.R. thanks the Winton Programme for the Physics of Sustainability (University of Cambridge). J.M.R. thanks the Cambridge Home European Scheme for financial support. B.M. thanks Robinson College and the Cambridge Philosophical Society for a Henslow Research Fellowship. F.D. acknowledges funding from a Herchel Smith Research Fellowship and a Winton Advanced Research Fellowship.