Width and split effects on effective spin flip through armchair phosphorene nanoribbons Zahra Safipour, Faezeh Shabani and Edris Faizabadi Eur. Phys. J. Plus, 137 12 (2022) 1307 Published online: 05 December 2022 DOI: 10.1140/epjp/s13360-022-03509-6