title: NMR study of in-plane twofold ordering in URu(2)Si(2).
abstract: We report (29)Si NMR spectra and Knight shift measurements as a function of applied field orientation in the (001) basal plane of URu(2)Si(2). Observed linewidth oscillations confirm the in-plane twofold ordered domain state observed in recent magnetic susceptibility measurements. Analysis of our linewidth data leads to estimate ∼ 0.4% for the twofold intrinsic (monodomain) susceptibility anisotropy in the basal plane, a value ∼ 15 times smaller than that obtained from recent susceptibility measurements.
authors.affiliation: Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kambe
authors.affiliation: Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Tokunaga
authors.affiliation: Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Sakai
authors.affiliation: Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan.
authors.forename: T D
authors.initials: TD
authors.lastname: Matsuda
authors.affiliation: Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Haga
authors.affiliation: Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan and Department of Physics and Astronomy, University of California Irvine, Irvine, California 97697, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Fisk
authors.affiliation: Physics Department, The University of Michigan, Ann Arbor, Michigan 48109, USA.
authors.forename: R E
authors.initials: RE
authors.lastname: Walstedt