@article{article1ab3823a,
title   = {Activation energy and its fluctuations at grain boundaries of Er3+:BaTiO3 perovskite thin films: effect of doping concentration and annealing temperature},
author = {Huaman, Jose Luis Clabel and Nazrin, S. N. and Calderón, Gaston Lozano and Silva, Marcelo de Assumpção Pereira da and Siu Li, Máximo and Marega Junior, Euclydes},
year = {2021},
doi = {10.1016/j.vacuum.2021.110562},
journal   = {Vacuum}
}