title: Variable temperature electrochemical strain microscopy of Sm-doped ceria.
abstract: Variable temperature electrochemical strain microscopy has been used to study the electrochemical activity of Sm-doped ceria as a function of temperature and bias. The electrochemical strain microscopy hysteresis loops have been collected across the surface at different temperatures and the relative activity at different temperatures has been compared. The relaxation behavior of the signal at different temperatures has been also evaluated to relate kinetic process during bias induced electrochemical reactions with temperature and two different kinetic regimes have been identified. The strongly non-monotonic dependence of relaxation behavior on temperature is interpreted as evidence for water-mediated mechanisms.
authors.affiliation: The Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
authors.forename: Amit
authors.initials: A
authors.lastname: Kumar
authors.forename: Stephen
authors.initials: S
authors.lastname: Jesse
authors.forename: Anna N
authors.initials: AN
authors.lastname: Morozovska
authors.forename: Eugene
authors.initials: E
authors.lastname: Eliseev
authors.forename: Antonello
authors.initials: A
authors.lastname: Tebano
authors.forename: Nan
authors.initials: N
authors.lastname: Yang
authors.forename: Sergei V
authors.initials: SV
authors.lastname: Kalinin