Low-temperature electronic properties of a normal conducting perovskite oxide (LaNiO3)

Rajeev, K. P. ; Shivashankar, G. V. ; Raychaudhuri, A. K. (1991) Low-temperature electronic properties of a normal conducting perovskite oxide (LaNiO3) Solid State Communications, 79 (7). pp. 591-595. ISSN 0038-1098

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/003810...

Related URL: http://dx.doi.org/10.1016/0038-1098(91)90915-I

Abstract

We report here the measurements of specific heat (10 K>T>1.5 K), thermopower (300 K>T>4 K), electrical conductivity (300 K>T>0.4 K) and tunneling conductance (T=4.2 K) of the perovskite oxide metal LaNiO3. We show that this oxide metal has a fairly large electron-electron interaction which gives rise to a T½ correction to the conductivity for T<2 K and a V½ correction to the single particle density of states near the Fermi energy. The strong interaction effects in this metal arise from the low electron diffusivity.

Item Type:Article
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