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1959•Proceedings of the Physical SocietyOpen access

The Magnetic Susceptibility of Iron Ditelluride: II

D. M. Finlayson, J. Patrick Llewellyn, Timothy Smith

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Abstract

The magnetic susceptibility of stoichiometric iron ditelluride has been measured between 15° and 100°K. The material appears to be antiferromagnetic with a Néel temperature at about 85°K. The curve is anomalous in that the susceptibility at 15°K is greater than that at the Néel temperature. This behaviour can be explained by a simple model of an antiferromagnetic containing some non-magnetic ions, provided that the concentration of the latter changes as a result of the ordering process. The susceptibility of samples of FeTe 1.95 and FeTe 2.10 is also given.

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The magnetic susceptibility of stoichiometric iron ditelluride has been measured between 15° and 100°K. The material appears to be antiferromagnetic with a Néel temperature at about 85°K. The curve is anomalous in that the susceptibility at 15°K is greater than that at the Néel temperature. This behaviour can be explained by a simple model of an antiferromagnetic containing some non-magnetic ions, provided that the concentration of the latter changes as a result of the ordering process. The susceptibility of samples of FeTe 1.95 and FeTe 2.10 is also given.

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Available abstract

The magnetic susceptibility of stoichiometric iron ditelluride has been measured between 15° and 100°K. The material appears to be antiferromagnetic with a Néel temperature at about 85°K. The curve is anomalous in that the susceptibility at 15°K is greater than that at the Néel temperature. This behaviour can be explained by a simple model of an antiferromagnetic containing some non-magnetic ions, provided that the concentration of the latter changes as a result of the ordering process. The susceptibility of samples of FeTe 1.95 and FeTe 2.10 is also given.

Key concepts: Antiferromagnetism, Magnetic susceptibility, Stoichiometry, Condensed matter physics, Ion, Chemistry, Materials science, Physics

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