Crystal growth, characterization and physical properties of PrNiSb{sub 3}, NdNiSb{sub 3} and SmNiSb{sub 3}
- Department of Chemistry, Louisiana State University, Room 232 Choppin Hall, Baton Rouge, LA 70803 (United States)
- Department of Physics, University of California, One Shields Ave., Davis, CA 95616 (United States)
The crystal structures of three new intermetallic ternary compounds in the LnNiSb{sub 3} (Ln=Pr, Nd and Sm) family have been characterized by single crystal X-ray diffraction. PrNiSb{sub 3}, NdNiSb{sub 3} and SmNiSb{sub 3} all crystallize in an orthorhombic space group, Pbcm (No. 57), Z=12, with a=12.5700(2)A, b=6.2010(4)A, c=18.670(6)A, and V=1431.64(11)A3; a=12.5090(2)A, b=6.1940(3)A, c=18.3350(6)A, and V=1420.61(9)A3; and a=12.3900(1)A, b=6.1760(3)A, c=18.2650(6)A, and V=1397.65(8)A3, for Ln=Pr, Nd and Sm, respectively. These compounds consist of rare-earth atoms located above and below layers of nearly square, buckled Sb nets, along with layers of highly distorted edge- and face-sharing NiSb{sub 6} octahedra. Resistivity data indicate metallic behavior for all three compounds. Magnetization measurements show antiferromagnetic behavior with TN=4.5K (PrNiSb{sub 3}), 4.6K (NdNiSb{sub 3}), and 2.9K (SmNiSb{sub 3}). Effective moments of 3.62{mu}{sub B}, 3.90{mu}{sub B} and 0.80{mu}{sub B} are found for PrNiSb{sub 3}, NdNiSb{sub 3} and SmNiSb{sub 3}, respectively, and are consistent with Pr{sup 3+} (f{sup 2}), Nd{sup 3+} (f{sup 3}), and Sm{sup 3+} (f{sup 4})
- OSTI ID:
- 20658202
- Journal Information:
- Journal of Solid State Chemistry, Vol. 177, Issue 11; Other Information: DOI: 10.1016/j.jssc.2004.08.014; PII: S0022-4596(04)00454-2; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIFERROMAGNETISM
ANTIMONIDES
CRYSTAL GROWTH
LAYERS
MAGNETIZATION
MONOCRYSTALS
NEODYMIUM COMPOUNDS
NEODYMIUM IONS
ORTHORHOMBIC LATTICES
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM IONS
SAMARIUM COMPOUNDS
SAMARIUM IONS
SPACE GROUPS
X-RAY DIFFRACTION