Magnetotransport measurements on Nd1−xCaxB6

We performed measurements of the Hall effect, electrical resistivity, and magnetization on random alloys of Nd1−xCaxB6 (x < 0.4) in the 2 to 300 K temperature range, and in magnetic fields of up to 5 T. We find that a large anomalous contribution to the Hall effect, observed in NdB6 single crysta...

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Bibliographic Details
Published in:Journal of physics. Conference series 2010-01, Vol.200 (1), p.012192
Main Authors: Stankiewicz, Jolanta, Bianchi, Andrea D, Fisk, Zachary
Format: Article
Language:English
Subjects:
Electromagnetism
Fermi surfaces
Hall effect
Magnetism
Physics
Single crystals
Online Access:Get full text
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Summary:We performed measurements of the Hall effect, electrical resistivity, and magnetization on random alloys of Nd1−xCaxB6 (x < 0.4) in the 2 to 300 K temperature range, and in magnetic fields of up to 5 T. We find that a large anomalous contribution to the Hall effect, observed in NdB6 single crystals in the paramagnetic regime, decreases sharply with Ca content. In addition, the electron concentration decreases as expected for a divalent substitution for trivalent Nd. We tentatively relate these observations to changes in the Fermi surface volume upon doping.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/200/1/012192