A novel type of internal transport barrier (ITB) called F-ATB (fast ion-induced anomalous barrier) has been recently observed in state-of-the-art global gyrokinetic simulations on a properly optimized ASDEX Upgrade experiment [A. Di Siena et al. Phys. Rev. Lett. {\bf 127} 025002 (2021)]. Unlike the barriers previously reported literature, trigger mechanism for is basically electrostatic wave-pa...
