title: Optically Imaged Striped Domains of Nonequilibrium Electronic and Nuclear Spins in a Fractional Quantum Hall Liquid.
abstract: Using photoluminescence microscopy enhanced by magnetic resonance, we visualize in real space both electron and nuclear polarization occurring in nonequilibrium fraction quantum Hall (FQH) liquids. We observe stripelike domain regions comprising FQH excited states which discretely form when the FQH liquid is excited by a source-drain current. These regions are deformable and give rise to bidirectionally polarized nuclear spins as spin-resolved electrons flow across their boundaries.
authors.affiliation: Department of Physics, Tohoku University, Sendai 980-8578, Japan.
authors.forename: John N
authors.initials: JN
authors.lastname: Moore
authors.affiliation: Department of Physics, Tohoku University, Sendai 980-8578, Japan.
authors.forename: Junichiro
authors.initials: J
authors.lastname: Hayakawa
authors.affiliation: National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan.
authors.forename: Takaaki
authors.initials: T
authors.lastname: Mano
authors.affiliation: National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Noda
authors.affiliation: Department of Physics, Tohoku University, Sendai 980-8578, Japan.
authors.forename: Go
authors.initials: G
authors.lastname: Yusa