Some magnetic and crystallographic properties of the system Li+xNi++1−2xni+++xO

doi:10.1016/0022-3697(58)90136-7

Journal of Physics and Chemistry of Solids

Volume 5, Issues 1–2, 1958, Pages 107-116

https://doi.org/10.1016/0022-3697(58)90136-7 Get rights and content

Abstract

Crystallographic and magnetic measurements of the system Li⁺_xNi⁺⁺_1−2xNi⁺⁺⁺_xO for the entire range 0 ⩽ x ⩽ 0.5 are reported. For values ofx ⩽ 0.3, the lattice appears to be antiferro-magnetic and is cubic above the Curie temperature. For the range of compositions 0.3 < x < 0.5, the lattice is rhombohedral and ferrimagnetic, a maximum magnetic moment pet gram of 31 c.g.s. $cm^{3} g$ being observed at x = 0.46. A maximum ferrimagnetic Curie temperature of 241°K was observed for the composition x = 0.41. These properties are interpreted in terms of a partial ordering of lithium and nickel ions into alternate sets of (111) planes which couple antiparallel to one another, the moments within any set being either ferromagnetically coupled or paramagnetic, depending upon the number of non-magnetic near neighbors in the neighboring planes. This system is compared to the ordered rock-salt-type compound Cu_0.25Co_0.75O. The lack of ferrimagnetism and the tetragonal distortion to c/a < 1 in Cu_0.25Co_0.75O are explained.

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^☆: The research in this document was supported by the Army, Navy, and Air Force under contract with the Massachusetts Institute of Technology.

^†: Now with R.C.A. Laboratories, Needham, Mass.

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Some magnetic and crystallographic properties of the system Li+xNi++1−2xni+++xO☆

Abstract

J. Amer. Chem. Soc.

Chem. Weekblad

Philips Res. Rep.

Nature, Lond.

Acta Cryst.

Z. Phys. Chem.

Z. Phys. Chem.

Phys. Rev.

Physica

J. Amer. Chem. Soc.

J. Chem. Phys.

C.R. Acad. Sci., Paris

J. Amer. Chem. Soc.

Some magnetic and crystallographic properties of the system Li⁺_xNi⁺⁺_1−2xni⁺⁺⁺_xO☆