First-order valence phase transition in cubic YbxIn1-xCu2

I. Felner; I. Nowik

doi:10.1103/PhysRevB.33.617

First-order valence phase transition in cubic YbxIn1-xCu2

I. Felner^*
, I. Nowik

^*Corresponding author for this work

Racah Institute of Physics

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

257 Scopus citations

Abstract

Magnetic-susceptibility measurement of a new Laves-phase cubic system, YbxIn1-xCu2 (0.30x0.65), exhibit very sharp Yb2Yb3+ valence phase transitions at temperatures Tv=4080 K. A simple valence-fluctuation model predicts first-order phase transitions and agrees with the experimental observations. For Yb0.4In0.6Cu2 the theoretical fit shows that below Tv=46 K, the 6 state of Yb3+ is 190 K above Yb2+, changing abruptly to -210 K above Tv. The present compounds exhibit the sharpest temperature-dependent valence phase transition in any metallic system.

Original language	English
Pages (from-to)	617-619
Number of pages	3
Journal	Physical Review B
Volume	33
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.33.617
State	Published - 1986

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title = "First-order valence phase transition in cubic YbxIn1-xCu2",

abstract = "Magnetic-susceptibility measurement of a new Laves-phase cubic system, YbxIn1-xCu2 (0.30x0.65), exhibit very sharp Yb2Yb3+ valence phase transitions at temperatures Tv=4080 K. A simple valence-fluctuation model predicts first-order phase transitions and agrees with the experimental observations. For Yb0.4In0.6Cu2 the theoretical fit shows that below Tv=46 K, the 6 state of Yb3+ is 190 K above Yb2+, changing abruptly to -210 K above Tv. The present compounds exhibit the sharpest temperature-dependent valence phase transition in any metallic system.",

author = "I. Felner and I. Nowik",

year = "1986",

doi = "10.1103/PhysRevB.33.617",

language = "אנגלית",

volume = "33",

pages = "617--619",

journal = "Physical Review B",

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AU - Felner, I.

AU - Nowik, I.

PY - 1986

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N2 - Magnetic-susceptibility measurement of a new Laves-phase cubic system, YbxIn1-xCu2 (0.30x0.65), exhibit very sharp Yb2Yb3+ valence phase transitions at temperatures Tv=4080 K. A simple valence-fluctuation model predicts first-order phase transitions and agrees with the experimental observations. For Yb0.4In0.6Cu2 the theoretical fit shows that below Tv=46 K, the 6 state of Yb3+ is 190 K above Yb2+, changing abruptly to -210 K above Tv. The present compounds exhibit the sharpest temperature-dependent valence phase transition in any metallic system.

AB - Magnetic-susceptibility measurement of a new Laves-phase cubic system, YbxIn1-xCu2 (0.30x0.65), exhibit very sharp Yb2Yb3+ valence phase transitions at temperatures Tv=4080 K. A simple valence-fluctuation model predicts first-order phase transitions and agrees with the experimental observations. For Yb0.4In0.6Cu2 the theoretical fit shows that below Tv=46 K, the 6 state of Yb3+ is 190 K above Yb2+, changing abruptly to -210 K above Tv. The present compounds exhibit the sharpest temperature-dependent valence phase transition in any metallic system.

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First-order valence phase transition in cubic YbxIn1-xCu2

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