Please use this identifier to cite or link to this item: https://libjncir.jncasr.ac.in/xmlui/handle/10572/1254
Title: Electrical and magnetic properties of La2−xSrxNiO4: A tentative phase diagram
Authors: Sreedhar, K
Rao, C N R
Keywords: Lanthanum
Strontium
Nickel
Oxides
Issue Date: Oct-1990
Publisher: Pergamon-Elsevier Science Ltd
Citation: Materials Research Bulletin 25(10), 1235-1242 (1990)
Abstract: La2−xSrxNiO4 shows a maximum in the c/a ratio around x=0.6 up to which composition the concentration of holes is equal to that expected theoretically. The material becomes a degenerate semiconductor above a certain temperature up to x=0.8, but is metallic at room temperature when x≥1.0. All the compositions with x≥0.05 are paramagnetic in the 15-300K range. Based on these measurements, an electronic phase diagram is tentatively proposed. It is noteworthy that the antiferromagnetic order disappears at low doping levels in both La2−xSrxNiO4 and La2−xSrxNiO4, but metallicity is seen at 300K only at a much higher x value in the former system.
Description: Restricted Access
URI: https://libjncir.jncasr.ac.in/xmlui/10572/1254
Other Identifiers: 0025-5408
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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