Valence transition in CeNi1-xCoxSn alloys

D. T. Adroja; B. D. Rainford

doi:10.1016/0921-4526(94)91882-1

Valence transition in CeNi_1-xCo_xSn alloys

D. T. Adroja, B. D. Rainford

University of Southampton

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The temperature dependence of the susceptibility of CeNi_1-xCo_xSn alloys shows a dramatic change with Co concentration x. CeNiSn shows a Curie-Weiss behaviour for χ(T) between 50 and 300 K. For x = 0.34, χ(T) exhibits a broad maximum at 95 K, while for x = 0.35 it shows a sharp drop at 75 K. There is a marked contraction of the volume at the same temperature. On increasing x to 0.4 the anomaly moves to 40 K, but disappears for x ≥ 0.42. We ascribe this behaviour to a first-order valence transition, like that observed in the compound YbInCu₄.

Original language	English
Pages (from-to)	498-499
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	199-200
Issue number	C
DOIs	https://doi.org/10.1016/0921-4526(94)91882-1
Publication status	Published - 2 Apr 1994
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/0921-4526(94)91882-1

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title = "Valence transition in CeNi1-xCoxSn alloys",

abstract = "The temperature dependence of the susceptibility of CeNi1-xCoxSn alloys shows a dramatic change with Co concentration x. CeNiSn shows a Curie-Weiss behaviour for χ(T) between 50 and 300 K. For x = 0.34, χ(T) exhibits a broad maximum at 95 K, while for x = 0.35 it shows a sharp drop at 75 K. There is a marked contraction of the volume at the same temperature. On increasing x to 0.4 the anomaly moves to 40 K, but disappears for x ≥ 0.42. We ascribe this behaviour to a first-order valence transition, like that observed in the compound YbInCu4.",

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AU - Adroja, D. T.

AU - Rainford, B. D.

PY - 1994/4/2

Y1 - 1994/4/2

N2 - The temperature dependence of the susceptibility of CeNi1-xCoxSn alloys shows a dramatic change with Co concentration x. CeNiSn shows a Curie-Weiss behaviour for χ(T) between 50 and 300 K. For x = 0.34, χ(T) exhibits a broad maximum at 95 K, while for x = 0.35 it shows a sharp drop at 75 K. There is a marked contraction of the volume at the same temperature. On increasing x to 0.4 the anomaly moves to 40 K, but disappears for x ≥ 0.42. We ascribe this behaviour to a first-order valence transition, like that observed in the compound YbInCu4.

AB - The temperature dependence of the susceptibility of CeNi1-xCoxSn alloys shows a dramatic change with Co concentration x. CeNiSn shows a Curie-Weiss behaviour for χ(T) between 50 and 300 K. For x = 0.34, χ(T) exhibits a broad maximum at 95 K, while for x = 0.35 it shows a sharp drop at 75 K. There is a marked contraction of the volume at the same temperature. On increasing x to 0.4 the anomaly moves to 40 K, but disappears for x ≥ 0.42. We ascribe this behaviour to a first-order valence transition, like that observed in the compound YbInCu4.

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DO - 10.1016/0921-4526(94)91882-1

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VL - 199-200

SP - 498

EP - 499

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - C

ER -

Valence transition in CeNi_1-xCo_xSn alloys

Abstract

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