Pressure and magnetic field effects on the valence transition of EuRh2Si2

Akihiro Mitsuda; Eigo Kishaba; Takumi Fujimoto; Kohei Oyama; Hirofumi Wada; Masaichiro Mizumaki; Naomi Kawamura; Naoki Ishimatsu

doi:10.1016/j.physb.2017.10.045

Pressure and magnetic field effects on the valence transition of EuRh₂Si₂

Akihiro Mitsuda, Eigo Kishaba, Takumi Fujimoto, Kohei Oyama, Hirofumi Wada, Masaichiro Mizumaki, Naomi Kawamura, Naoki Ishimatsu

Condensed Matter Physics

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

9 Citations (Scopus)

Abstract

We have measured the X-ray absorption spectra (XAS), electrical resistivity and magnetic susceptibility of EuRh₂Si₂, which undergoes a valence transition under high pressures. A sharp decrease in the Eu valence determined from the XAS was observed at around 70 K in the temperature dependence at P = 1.2–1.9 GPa. In the temperature dependence of electrical resistivity and magnetic susceptibility, we observed jumps associated with the temperature-induced valence transition under high pressures. The magnetoresistance detected a field-induced valence transition. The results are discussed from the thermodynamic point of view.

Original language	English
Pages (from-to)	427-431
Number of pages	5
Journal	Physica B: Condensed Matter
Volume	536
DOIs	https://doi.org/10.1016/j.physb.2017.10.045
Publication status	Published - May 1 2018

All Science Journal Classification (ASJC) codes

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

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10.1016/j.physb.2017.10.045

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title = "Pressure and magnetic field effects on the valence transition of EuRh2Si2 ",

abstract = "We have measured the X-ray absorption spectra (XAS), electrical resistivity and magnetic susceptibility of EuRh2Si2, which undergoes a valence transition under high pressures. A sharp decrease in the Eu valence determined from the XAS was observed at around 70 K in the temperature dependence at P = 1.2–1.9 GPa. In the temperature dependence of electrical resistivity and magnetic susceptibility, we observed jumps associated with the temperature-induced valence transition under high pressures. The magnetoresistance detected a field-induced valence transition. The results are discussed from the thermodynamic point of view.",

author = "Akihiro Mitsuda and Eigo Kishaba and Takumi Fujimoto and Kohei Oyama and Hirofumi Wada and Masaichiro Mizumaki and Naomi Kawamura and Naoki Ishimatsu",

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T1 - Pressure and magnetic field effects on the valence transition of EuRh2Si2

AU - Mitsuda, Akihiro

AU - Kishaba, Eigo

AU - Fujimoto, Takumi

AU - Oyama, Kohei

AU - Wada, Hirofumi

AU - Mizumaki, Masaichiro

AU - Kawamura, Naomi

AU - Ishimatsu, Naoki

PY - 2018/5/1

Y1 - 2018/5/1

N2 - We have measured the X-ray absorption spectra (XAS), electrical resistivity and magnetic susceptibility of EuRh2Si2, which undergoes a valence transition under high pressures. A sharp decrease in the Eu valence determined from the XAS was observed at around 70 K in the temperature dependence at P = 1.2–1.9 GPa. In the temperature dependence of electrical resistivity and magnetic susceptibility, we observed jumps associated with the temperature-induced valence transition under high pressures. The magnetoresistance detected a field-induced valence transition. The results are discussed from the thermodynamic point of view.

AB - We have measured the X-ray absorption spectra (XAS), electrical resistivity and magnetic susceptibility of EuRh2Si2, which undergoes a valence transition under high pressures. A sharp decrease in the Eu valence determined from the XAS was observed at around 70 K in the temperature dependence at P = 1.2–1.9 GPa. In the temperature dependence of electrical resistivity and magnetic susceptibility, we observed jumps associated with the temperature-induced valence transition under high pressures. The magnetoresistance detected a field-induced valence transition. The results are discussed from the thermodynamic point of view.

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Pressure and magnetic field effects on the valence transition of EuRh₂Si₂

Abstract

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