title: Magnetoresistance anisotropy of a one-dimensional superconducting niobium strip.
abstract: We investigated confinement effects on the resistive anisotropy of a superconducting niobium strip with a rectangular cross section. When its transverse dimensions are comparable to the superconducting coherence length, the angle dependent magnetoresistances at a fixed temperature can be scaled as R(theta,H) = R(H/Hctheta) where Hctheta =Hc0(cos2theta + gamma(-2)sin2theta)(-1/2) is the angular dependent critical field, gamma is the width to thickness ratio, and Hc0 is the critical field in the thickness direction at theta=0 degrees . The results can be understood in terms of the anisotropic diamagnetic energy for a given field in a one-dimensional superconductor.
authors.affiliation: Department of Physics, Northern Illinois University, DeKalb, Illinois 60115, USA.
authors.forename: J
authors.initials: J
authors.lastname: Hua
authors.forename: Z L
authors.initials: ZL
authors.lastname: Xiao
authors.forename: A
authors.initials: A
authors.lastname: Imre
authors.forename: S H
authors.initials: SH
authors.lastname: Yu
authors.forename: U
authors.initials: U
authors.lastname: Patel
authors.forename: L E
authors.initials: LE
authors.lastname: Ocola
authors.forename: R
authors.initials: R
authors.lastname: Divan
authors.forename: A
authors.initials: A
authors.lastname: Koshelev
authors.forename: J
authors.initials: J
authors.lastname: Pearson
authors.forename: U
authors.initials: U
authors.lastname: Welp
authors.forename: W K
authors.initials: WK
authors.lastname: Kwok