skip to main content

SciTech ConnectSciTech Connect

Title: Resistivity and magnetic susceptibility of single-crystal Lu(Ni{sub 1{minus}x}Co{sub x}){sub 2}B{sub 2}C (x=0.0{endash}0.09)

Single crystal samples of Lu(Ni{sub 1{minus}x}Co{sub x}){sub 2}B{sub 2}C have been prepared for x=0{endash}0.09. In-plane electrical resistivity measurements show that the residual resistivity of these samples increases linearly with {ital x}, though by less than is observed for polycrystalline samples. T{sub c} is suppressed by the cobalt substitution (from 16.0 K for x=0 to 9.5 K for x=0.09), though magnetization measurements indicate that this is not due to pair breaking by magnetic impurities. The critical field H{sub C2}(T) decreases with increasing Co concentration, and has some anisotropy between H{parallel}c and H{perpendicular}c. The ratio of the coherence length to the mean-free path ({xi}{sub 0}/l) is estimated, and found to be approaching the dirty limit ({xi}{sub 0}/l{gt}1) as {ital x} increases. These results are discussed with reference to nonlocal effects and the vortex lattice structure of the borocarbides in the mixed state. {copyright} {ital 1998} {ital The American Physical Society}
Authors:
; ; ;  [1] ;  [2] ;  [3]
  1. Ames Laboratory, Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States) [Ames Laboratory, Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
  2. Nuclear Engineering Lab, University of Tokyo, Tokai-mura, Ibaraki 319-11 (Japan) [Nuclear Engineering Lab, University of Tokyo, Tokai-mura, Ibaraki 319-11 (Japan)
  3. Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974 (United States) [Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974 (United States)
Publication Date:
OSTI Identifier:
641648
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review, B: Condensed Matter; Journal Volume: 58; Journal Issue: 10; Other Information: PBD: Sep 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ELECTRIC CONDUCTIVITY; SUPERCONDUCTORS; TRANSITION TEMPERATURE; CRITICAL TEMPERATURE; BORON COMPOUNDS; CARBON COMPOUNDS; LUTETIUM COMPOUNDS; NICKEL COMPOUNDS; COBALT COMPOUNDS; CARBIDES; BORON CARBIDES; LUTETIUM CARBIDES; NICKEL CARBIDES; COBALT CARBIDES; POLYCRYSTALS; MIXED STATE; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; COHERENCE LENGTH; CRITICAL FIELD