Electronic properties of the metallic perovskite LaNiO sub 3 : Correlated behavior of 3 d electrons

Journal Article · Tue Sep 01 00:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.46.6382· OSTI ID:7068092

Sreedhar, K; Honig, J M ^[1]; Darwin, M; McElfresh, M; Shand, P M; Xu, J; Crooker, B C; Spalek, J ^[2]

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1. Department of Chemistry, Purdue University, West Lafayette, Indiana 47907 (United States)
2. Department of Physics, Purdue University, West Lafayette, Indiana 47907 (United States)

Low-temperature electrical resistivity, specific heat, and magnetic measurements have been performed on the distorted perovskite LaNiO{sub 3}. The electrical resistivity shows a linear temperature dependence at high temperatures and an {ital AT}{sup 2} dependence below {similar to}50 K. The static paramagnetic susceptibility is nearly Pauli-like with an additional small Curie-law contribution in the range 100--300 K, and shows stronger temperature dependence at lower temperatures. The specific heat can be represented as {gamma}{ital T}+{beta}{ital T}{sup 3}+{delta}{ital T}{sup 3}ln{ital T} at low temperatures. Both the Pauli magnetic susceptibility {chi}=5.1{times}10{sup {minus}4} emu/mol and the linear temperature coefficient of the specific heat {gamma}=13.7 mJ/K{sup 2} mol are enhanced well above their electron gas values. The effective Stoner enhancement factor is {ital S}=0.58, i.e., far from the ferromagnetic instability. These results are interpreted in terms of a Fermi liquid composed of almost localized Ni 3{ital d} electrons. Thus, LaNiO{sub 3} represents a correlated metallic system.

• DOE Contract Number: FG02-90ER45427
• OSTI ID: 7068092
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 46:10; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LANTHANUM OXIDES
PHYSICAL PROPERTIES
NICKEL OXIDES
ELECTRIC CONDUCTIVITY
ELECTRIC IMPEDANCE
ELECTRON CORRELATION
MAGNETIC SUSCEPTIBILITY
PEROVSKITE
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
CHALCOGENIDES
CORRELATIONS
ELECTRICAL PROPERTIES
IMPEDANCE
LANTHANUM COMPOUNDS
MAGNETIC PROPERTIES
MINERALS
NICKEL COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
RARE EARTH COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
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