title: Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems.
abstract: We use electrical detection, in combination with microwave transmission, to investigate both resonant and nonresonant magnon-photon coupling at room temperature. Spin pumping in a dynamically coupled magnon-photon system is found to be distinctly different from previous experiments. Characteristic coupling features such as modes anticrossing, linewidth evolution, peculiar line shape, and resonance broadening are systematically measured and consistently analyzed by a theoretical model set on the foundation of classical electrodynamic coupling. Our experimental and theoretical approach paves the way for pursuing microwave coherent manipulation of pure spin current via the combination of spin pumping and magnon-photon coupling.
authors.affiliation: Department of Physics and Astronomy, University of Manitoba, Winnipeg R3T 2N2, Canada.
authors.forename: Lihui
authors.initials: L
authors.lastname: Bai
authors.affiliation: Department of Physics and Astronomy, University of Manitoba, Winnipeg R3T 2N2, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Harder
authors.affiliation: Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: Y P
authors.initials: YP
authors.lastname: Chen
authors.affiliation: Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: X
authors.initials: X
authors.lastname: Fan
authors.affiliation: Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA.
authors.forename: J Q
authors.initials: JQ
authors.lastname: Xiao
authors.affiliation: Department of Physics and Astronomy, University of Manitoba, Winnipeg R3T 2N2, Canada.
authors.forename: C-M
authors.initials: CM
authors.lastname: Hu