The shape complexity of hydrogenic impurity state in the Ga1 − χAlχN semiconductor quantum wellXue Liu, De-hua Wang, Xin-Yu Xie, Bin-hua Chu, Shu-fang Zhang and Gang ZhaoEur. Phys. J. D, 78 1 (2024) 4DOI: https://doi.org/10.1140/epjd/s10053-023-00790-7