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Magnetic and electrical properties of the intermetallic compounds R7Rh3(R=La, Ce, Pr and Nd)

Authors
Journal
Journal of Alloys and Compounds
0925-8388
Publisher
Elsevier
Publication Date
Volume
270
Identifiers
DOI: 10.1016/s0925-8388(98)00458-7
Keywords
  • Rare Earth Rhodium Compounds
  • Magnetic Properties
  • Electrical Resistivity
  • Thermopower
  • Thermal Expansion
Disciplines
  • Physics

Abstract

Abstract Magnetic and electrical properties of the hexagonal Th 7Fe 3-type R 7Rh 3 compounds (R=La, Ce, Pr and Nd) have been studied by measuring a.c. magnetic susceptibility, magnetization, electrical resistivity, thermoelectric power and thermal expansion for polycrystalline samples. The Ce 7Rh 3 and Pr 7Rh 3 show ferromagnetic ordering below 6.8 and 15.6 K, respectively. In Nd 7Rh 3, there are two magnetic ordered phases; the ferromagnetic phase below 11 K and the antiferromagnetic phase up to 32 K. In the antiferromagnetic phase, a metamagnetic transition takes place. Pronounced changes at the magnetic transitions are observed in thermoelectric power.

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