Pressure-induced weak ferromagnetism and suppression of valence transition in Yb compound

Akihiro Mitsuda

doi:10.4131/jshpreview.15.44

Pressure-induced weak ferromagnetism and suppression of valence transition in Yb compound

Research output: Contribution to journal › Review article › peer-review

Abstract

We have paid attention to the ground state of the high-temperature magnetic phase of YbInCu₄ which exhibits a first-order valence transition at 42 K. The high-temperature phase, which shows Curie-Weiss paramagnetism of Yb³⁺, is stabilized down to zero temperature by the application of pressure and/or substitution of Y for Yb. We have measured magnetization of Yb_0.8Y_0.2InCu₄ under high pressure in the low temperature ranges down to 0.6 K and could observe suppression of the valence transition and occurrence of ferromagnetism at the same time. The ferromagnetism is characterized by a low Curie temperature of 1.8 K and very small spontaneous magnetization of 0.067 μ_B/Yb.

Original language	English
Pages (from-to)	44-51
Number of pages	8
Journal	Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
Volume	15
Issue number	1
DOIs	https://doi.org/10.4131/jshpreview.15.44
Publication status	Published - 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.4131/jshpreview.15.44

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title = "Pressure-induced weak ferromagnetism and suppression of valence transition in Yb compound",

abstract = "We have paid attention to the ground state of the high-temperature magnetic phase of YbInCu4 which exhibits a first-order valence transition at 42 K. The high-temperature phase, which shows Curie-Weiss paramagnetism of Yb3+, is stabilized down to zero temperature by the application of pressure and/or substitution of Y for Yb. We have measured magnetization of Yb0.8Y0.2InCu4 under high pressure in the low temperature ranges down to 0.6 K and could observe suppression of the valence transition and occurrence of ferromagnetism at the same time. The ferromagnetism is characterized by a low Curie temperature of 1.8 K and very small spontaneous magnetization of 0.067 μB/Yb.",

author = "Akihiro Mitsuda",

year = "2005",

doi = "10.4131/jshpreview.15.44",

language = "English",

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pages = "44--51",

journal = "Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu",

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T1 - Pressure-induced weak ferromagnetism and suppression of valence transition in Yb compound

AU - Mitsuda, Akihiro

PY - 2005

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N2 - We have paid attention to the ground state of the high-temperature magnetic phase of YbInCu4 which exhibits a first-order valence transition at 42 K. The high-temperature phase, which shows Curie-Weiss paramagnetism of Yb3+, is stabilized down to zero temperature by the application of pressure and/or substitution of Y for Yb. We have measured magnetization of Yb0.8Y0.2InCu4 under high pressure in the low temperature ranges down to 0.6 K and could observe suppression of the valence transition and occurrence of ferromagnetism at the same time. The ferromagnetism is characterized by a low Curie temperature of 1.8 K and very small spontaneous magnetization of 0.067 μB/Yb.

AB - We have paid attention to the ground state of the high-temperature magnetic phase of YbInCu4 which exhibits a first-order valence transition at 42 K. The high-temperature phase, which shows Curie-Weiss paramagnetism of Yb3+, is stabilized down to zero temperature by the application of pressure and/or substitution of Y for Yb. We have measured magnetization of Yb0.8Y0.2InCu4 under high pressure in the low temperature ranges down to 0.6 K and could observe suppression of the valence transition and occurrence of ferromagnetism at the same time. The ferromagnetism is characterized by a low Curie temperature of 1.8 K and very small spontaneous magnetization of 0.067 μB/Yb.

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Pressure-induced weak ferromagnetism and suppression of valence transition in Yb compound

Abstract

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