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Physical properties and giant magnetoresistance in RNiSb compounds

Authors
Journal
Journal of Alloys and Compounds
0925-8388
Publisher
Elsevier
Publication Date
Volume
265
Identifiers
DOI: 10.1016/s0925-8388(97)00419-2
Keywords
  • Magnetically Ordered Materials
  • Electronic Conduction
  • Magnetotransport Effects
  • Rare Earth Nickel Antimonides
  • Semiconductors
Disciplines
  • Physics

Abstract

Abstract The physical properties of RNiSb (R=rare earth) have been investigated by magnetization, resistivity and magnetoresistance measurements. The light rare earth compounds are metallic, while those with Tb, Dy, Ho, are semiconductors with a giant negative magnetoresistance. With the exception of the Pauli-paramagnets LaNiSb and YNiSb, all those compounds have a Curie-Weiss magnetism. CeNiSb and NdNiSb are ferromagnetic probably with an additional modulated component for Ce, the heavy rare earths TbNiSb, DyNiSb and HoNiSb compounds order antiferromagnetically at low temperatures.

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