Hall effect in LuNi{sub 2}B{sub 2}C and YNi{sub 2}B{sub 2}C borocarbides in normal and superconducting mixed states

Journal Article · Wed Dec 01 00:00:00 EST 1999 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1023/A:1022559615218· OSTI ID:20015359

Freudenberger, J; Narozhnyi, V N; Kochetkov, V N; Nenkov, K A; Fuchs, G; Handstein, A; Mueller, K H; Schultz, L

It was shown that the Hall resistivity {rho}{sub xy} for LuNi{sub 2}B{sub 2}C and YNi{sub 2}B{sub 2}C is negative in the normal and mixed states and has no sign reversal below {Tc}. In the mixed state the scaling relation {rho}{sub xy} {approximately} {rho}{sub xx}{sup {beta}} ({rho}{sub xx} is the longitudinal resistivity) was found for both compounds with {beta} {approx} 2.0. In the normal state a distinct nonlinearity in the {rho}{sub xy}(H) dependence, accompanied by a large magnetoresistance, was found below 40 K only for LuNi{sub 2}B{sub 2}C. The difference in the behavior of Lu- and Y-based borocarbides seems to be connected with the difference in the Fermi surfaces of these compounds.

• Research Organization: Inst. fuer Festkoerper- und Werkstofforschung Dresden e.V. (DE)
• OSTI ID: 20015359
• Journal Information: Journal of Low Temperature Physics, Vol. 117, Issue 5-6; Conference: International Conference on Physics and Chemistry of Molecular and Oxide Superconductors, Stockholm (SE), 07/28/1999--08/02/1999; Other Information: PBD: Dec 1999; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LUTETIUM BORIDES
LUTETIUM CARBIDES
NICKEL BORIDES
NICKEL CARBIDES
YTTRIUM BORIDES
YTTRIUM CARBIDES
MIXED STATE
HALL EFFECT
SCALING LAWS
FERMI LEVEL
ELECTRIC CONDUCTIVITY