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)

Journal Article · Tue Sep 01 00:00:00 EDT 1998 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.58.6463· OSTI ID:641648

Cheon, K O; Fisher, I R; Kogan, V G; Canfield, P C ^[1]; Miranovic, P ^[2]; Gammel, P L ^[3]

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1. 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)
3. Bell Laboratories, Lucent Technologies, Murray Hill, New Jersey 07974 (United States)

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}

• OSTI ID: 641648
• Journal Information: Physical Review, B: Condensed Matter, Vol. 58, Issue 10; Other Information: PBD: Sep 1998
• Country of Publication: United States
• Language: English

Related Subjects

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