Electrical resistivity of Co-Ni-Pd and Co-Pd alloys

Journal Article · Fri Nov 15 04:00:00 EST 1991 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.350125· OSTI ID:5196874

Jen, S U; Chen, T P; Chang, S A ^[1]

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1. Institute of Physics, Academia Sinica, Taipei, Taiwan (Republic of China)

Three series of ferromagnetic alloys have been made: Co{sub 100{minus}{ital x}}Pd{sub {ital x}}, Co{sub 25}Ni{sub 75{minus}{ital y}}Pd{sub {ital y}} and Co{sub 5{minus}{ital z}}Ni{sub {ital z}}Pd{sub 95}. The electrical resistivity {rho} of these alloys was measured from 4 to 300 K. Their high field ({ital H}{gt}2 T) susceptibility {chi}{sub HF} was obtained with superconducting quantum interference device measurements at 5 K. Comparing the residual resistivity {rho}{sub 0} of Co-Ni and Co-Pd, it is found that the spin-up resistivity {rho}{sub {up arrow}} of Co-Ni follows the Nordheim's rule, while that of Co-Pd peaks at {ital x}=85. This indicates the spin-up {ital d} band of Co-Pd is not full for all the {ital x} values. Also, {chi}{sub HF} data reveal the same tendency of the spin-up band. Based on the deviation from Matthiessen's rule of the two-current model, we estimate {alpha}={rho}{sub 0{down arrow}} /{rho}{sub 0{up arrow}}{congruent}2 for the dilute {ital PdCo} alloy, where {rho}{sub 0}={rho}{sub 0{down arrow}} {rho}{sub 0{up arrow}}/({rho}{sub 0{up arrow}}+{rho}{sub 0{down arrow}} ), from the residual resistivity of the ternary Co{sub 5{minus}{ital z}}Ni{sub {ital z}}Pd{sub 95} alloy and from the temperature dependence of {rho}({ital T}) of the binary Co{sub 5}Pd{sub 95} alloy

• OSTI ID: 5196874
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 70:10; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOY SYSTEMS
ALLOYS
BINARY ALLOY SYSTEMS
COBALT ALLOYS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATTHIESSEN RULE
MEDIUM TEMPERATURE
NICKEL ALLOYS
PALLADIUM ALLOYS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
TERNARY ALLOY SYSTEMS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE