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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4721

Title: CE2NI3SI5 - A MIXED-VALENCE CERIUM COMPOUND
Authors: MAZUMDAR, C
NAGARAJAN, R
DHAR, SK
GUPTA, LC
VIJAYARAGHAVAN, R
PADALIA, BD
Keywords: 2 energy scales
intermediate valence
low-temperatures
resistivity
systems
cepd3
anomalies
alloys
heat
Issue Date: 1992
Publisher: AMERICAN PHYSICAL SOC
Citation: PHYSICAL REVIEW B, 46(14), 9009-9012
Abstract: The results of electrical resistivity (4.2-300 K), magnetic susceptibility (5-300 K) and specific heat (2-20 K) are reported on the ternary orthorhombic rare-earth compound Ce2Ni3Si5. The resistivity of the material is nearly temperature independent above 120 K unlike that of a normal metallic material. The magnetic contribution to resistivity shows a broad maximum around 200 K. At low temperatures, the resistivity follows a T2 behavior in the temperature range 4-13 K. The inverse magnetic susceptibility deviates from Curie-Weiss behavior below 80 K where it exhibits a broad maximum in the chi vs T curve. Specific heat measurements (2-20 K) give a value of gamma almost-equal-to 62 mJ/Ce mol K2 which is similar in magnitude to those encountered in valence-fluctuating systems. From these observations we conclude that Ce2Ni3Si5 is a Ce-based valence-fluctuation compound.
URI: http://dx.doi.org/10.1103/PhysRevB.46.9009
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4721
http://hdl.handle.net/10054/4721
ISSN: 0163-1829
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