Available pseudopotentials:
He.pbe-mt_fhi.UPF (details)
Perdew-Burke-Ernzerhof (PBE) exch-corr Martins-Troullier author: fhi
He.pz-mt_fhi.UPF (details)
Perdew-Zunger (LDA) exch-corr Martins-Troullier author: fhi