Structures and properties of Rni/sub 4/Sn/sub 2/, R = La, Ce, Pr, Nd, or Sm
Journal Article
·
· Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:6100201
Powder x-ray structure analysis has given the crystal structures of RNi/sub 4/Sn/sub 2/ (R = La, Ce, Pr, Nd, Sm), which belong to the KAu/sub 4/Sn/sub 2/ structure type (space group I4c2). Magnetic-susceptibility and cell-volume suggest a defect structure, LaNi/sub 4-x/Sn/sub 2/. The compounds of CeNi/sub 4/Sn/sub 2/, PrNi/sub 4/Sn/sub 2/ and NdNi/sub 4/Sn/sub 2/ are paramagnetic materials at 78-293 K, with xi(T) following the Curie-Weiss law, while LaNi/sub 4-x/Sn/sub 2/ is a Pauli paramagnetic, and xi for SmNi/sub 4/Sn/sub 2/ has a considerable contribution from the van Vleck paramagnetism. Electron-type conduction occurs in LaNi/sub 4-x/Sn/sub 2/ and CeNi/sub 4/Sn/sub 2/, for which temperature-dependence measurements have been made for the resistivity and differential thermo-emf.
- Research Organization:
- I. Franko L'vov Univ. (USSR)
- OSTI ID:
- 6100201
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 24:1; ISSN INOMA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
CERIUM ALLOYS
COHERENT SCATTERING
CRYSTAL STRUCTURE
CURIE-WEISS LAW
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMOTIVE FORCE
LANTHANUM ALLOYS
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NEODYMIUM ALLOYS
NICKEL ALLOYS
PARAMAGNETISM
PHYSICAL PROPERTIES
PRASEODYMIUM ALLOYS
RARE EARTH ALLOYS
SAMARIUM ALLOYS
SCATTERING
SPACE GROUPS
TEMPERATURE DEPENDENCE
THERMOELECTRIC PROPERTIES
TIN ALLOYS
X-RAY DIFFRACTION
360102* -- Metals & Alloys-- Structure & Phase Studies
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
CERIUM ALLOYS
COHERENT SCATTERING
CRYSTAL STRUCTURE
CURIE-WEISS LAW
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMOTIVE FORCE
LANTHANUM ALLOYS
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NEODYMIUM ALLOYS
NICKEL ALLOYS
PARAMAGNETISM
PHYSICAL PROPERTIES
PRASEODYMIUM ALLOYS
RARE EARTH ALLOYS
SAMARIUM ALLOYS
SCATTERING
SPACE GROUPS
TEMPERATURE DEPENDENCE
THERMOELECTRIC PROPERTIES
TIN ALLOYS
X-RAY DIFFRACTION