title: Electrically tunable resistance of a metal.
abstract: Electric field-induced tuning of material properties is usually restricted to nonmetals such as semiconductors and piezoelectric ceramics. We show that variations of the electrical resistance of a metal (Pt) in the range of several percent can be reversibly induced at low charging voltages making use of a nanocrystallite-electrolyte composite. The charge-induced resistance variation is analyzed taking into account the modification of the charge carrier density and scattering rate by surface charging. The contribution arising from the charge-induced variation of the lattice constant is found to be small.
authors.affiliation: Institut für Materialphysik, Technische Universität Graz, Petersgasse 16, A-8010 Graz, Austria.
authors.forename: M
authors.initials: M
authors.lastname: Sagmeister
authors.forename: U
authors.initials: U
authors.lastname: Brossmann
authors.forename: S
authors.initials: S
authors.lastname: Landgraf
authors.forename: R
authors.initials: R
authors.lastname: Würschum