Structures and properties of Rni/sub 4/Sn/sub 2/, R = La, Ce, Pr, Nd, or Sm

Journal Article · Wed Jun 01 00:00:00 EDT 1988 · Inorg. Mater. (Engl. Transl.); (United States)

OSTI ID:6100201

Skolozdra, R V; Yasnitskaya, I V; Aksel'rud, L G; Komarovskaya, L P

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), Vol. 24:1; Other Information: Translated from Izv. Akad. Nauk SSSR, Neorg. Mater.; 24, No. 1, 65-69 (Jan 1988)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NICKEL ALLOYS
CRYSTAL STRUCTURE
RARE EARTH ALLOYS
TIN ALLOYS
CERIUM ALLOYS
CURIE-WEISS LAW
ELECTRIC CONDUCTIVITY
ELECTROMOTIVE FORCE
LANTHANUM ALLOYS
LATTICE PARAMETERS
MAGNETIC SUSCEPTIBILITY
NEODYMIUM ALLOYS
PARAMAGNETISM
PRASEODYMIUM ALLOYS
SAMARIUM ALLOYS
SPACE GROUPS
TEMPERATURE DEPENDENCE
THERMOELECTRIC PROPERTIES
X-RAY DIFFRACTION
ALLOYS
COHERENT SCATTERING
DIFFRACTION
ELECTRICAL PROPERTIES
MAGNETIC PROPERTIES
MAGNETISM
PHYSICAL PROPERTIES
SCATTERING
360102* - Metals & Alloys- Structure & Phase Studies
360104 - Metals & Alloys- Physical Properties