title: Phase separation in the itinerant metamagnetic transition of Sr4Ru3O10.
abstract: We have investigated the electronic transport properties of the triple-layered ruthenate Sr4Ru3O10. We observed surprising anomalous features near its itinerant metamagnetic transition, including ultrasharp magnetoresistivity steps, a nonmetallic temperature dependence in resistivity for upward field sweeps, and a resistivity drop in temperature dependence for downward field sweeps. These features suggest that the metamagnetic transition of Sr4Ru3O10 occurs via an electronic phase separation process with magnetic domain formation.
authors.affiliation: Department of Physics, Tulane University, New Orleans, Louisiana 70118, USA. zmao@tulane.edu
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Mao
authors.forename: M
authors.initials: M
authors.lastname: Zhou
authors.forename: J
authors.initials: J
authors.lastname: Hooper
authors.forename: V
authors.initials: V
authors.lastname: Golub
authors.forename: C J
authors.initials: CJ
authors.lastname: O'Connor