Internal and External Field Effects upon Crystal Field Excitations in REFeO${}_3$ (RE = Nd${}^{3+}$, Er${}^{3+}$, Yb${}^{3+}$, Pr${}^{3+}$, and Ho${}^{3+}$)

Guochu Deng

We systematically investigated crystal-field (CF) excitations of Kramers (Nd${}^{3+}$, Er${}^{3+}$, Yb${}^{3+}$) and non-Kramers (Pr${}^{3+}$, Ho${}^{3+}$) rare-earth ions in $REFe{O}_3$ using…