Hall-Effect in LuNi2B2C and YNi2B2C Borocarbides in Normal and Superconducting Mixed States |
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| Authors: | J Freudenberger V N Narozhnyi VN Kochetkov K A Nenkov G Fuchs A Handstein K-H Müller L Schultz |
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| Affiliation: | (1) Institut für Festkörper- und Werkstofforschung Dresden e. V., Postfach 270016, D-01171 Dresden, Germany;(2) Institute for High Pressure Physics, 142092, Russia;(3) International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-529 Wroclaw, Poland |
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| Abstract: | It was shown that the Hall resistivity 
xy
for LuNi
2
B
2
C and YNi
2
B
2
C is negative in the normal and mixed states and has no sign reversal below T
c
. In the mixed state the scaling relation xy 
xx
(xx
is the longitudinal resistivity) was found for both compounds with  2.0. In the normal state a distinct nonlinearity in the
xy(H) dependence, accompanied by a large magnetoresistance, was found below 40 K only for LuNi
2
B
2
C. The difference in the behaviour of Lu- and Y-based borocarbides seems to be connected with the difference in the Fermi surfaces of these compounds. |
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| Keywords: | |
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