title: Kagomé ice state in the dipolar spin ice Dy2Ti2O7.
abstract: We have investigated the kagomé ice behavior of the dipolar spin-ice compound Dy2Ti2O7 in a magnetic field along a [111] direction using neutron scattering and Monte Carlo simulations. The spin correlations show that the kagomé ice behavior predicted for the nearest-neighbor interacting model, where the field induces dimensional reduction and spins are frustrated in each two-dimensional kagomé lattice, occurs in the dipole interacting system. The spins freeze at low temperatures within the macroscopically degenerate ground states of the nearest-neighbor model.
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Tabata
authors.forename: H
authors.initials: H
authors.lastname: Kadowaki
authors.forename: K
authors.initials: K
authors.lastname: Matsuhira
authors.forename: Z
authors.initials: Z
authors.lastname: Hiroi
authors.forename: N
authors.initials: N
authors.lastname: Aso
authors.forename: E
authors.initials: E
authors.lastname: Ressouche
authors.forename: B
authors.initials: B
authors.lastname: Fåk