Weak ferromagnetism induced by pressure in Yb0.8 Y0.2InCu4

Akihiro Mitsuda, T. Goto, K. Yoshimura, W. Zhang, N. Sato, K. Kosuge, Hirofumi Wada

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

We measured magnetization of Yb0.8 Y0.2InCu4 as a function of temperature down to 0.6 K, pressure up to 1.2 GPa and magnetic field up to 9 T in order to investigate what kind of ground state is realized in the high-temperature (HT) phase of YbInCu4. It is found that applying pressure of P ≥ 0.8 GPa collapses the valence transition and induces weak ferromagnetism at the lowest temperature in Yb0.8 Y0.2InCu4. The ferromagnetic phase at 1.2 GPa is characterized by a low Curie temperature of 1.7 K and an extremely small ordered moment of 0.05μB/Yb, although a Yb ion is in the tri-valent state. Some itinerancy in magnetism may play a key role in the ferromagnetism and the valence transition.

Original languageEnglish
Pages (from-to)1211-1213
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume63
Issue number6-8
DOIs
Publication statusPublished - Jun 1 2002
Externally publishedYes
EventProceedings of the 8th ISSP International Symposium - Tokyo, Japan
Duration: Nov 2 2001Nov 5 2001

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Ferromagnetism
ferromagnetism
valence
Curie temperature
Magnetism
moments
Temperature
magnetization
Ground state
ground state
Magnetization
magnetic fields
Ions
Magnetic fields
ions
temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Weak ferromagnetism induced by pressure in Yb0.8 Y0.2InCu4. / Mitsuda, Akihiro; Goto, T.; Yoshimura, K.; Zhang, W.; Sato, N.; Kosuge, K.; Wada, Hirofumi.

In: Journal of Physics and Chemistry of Solids, Vol. 63, No. 6-8, 01.06.2002, p. 1211-1213.

Research output: Contribution to journalConference article

Mitsuda, Akihiro ; Goto, T. ; Yoshimura, K. ; Zhang, W. ; Sato, N. ; Kosuge, K. ; Wada, Hirofumi. / Weak ferromagnetism induced by pressure in Yb0.8 Y0.2InCu4. In: Journal of Physics and Chemistry of Solids. 2002 ; Vol. 63, No. 6-8. pp. 1211-1213.
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AU - Mitsuda, Akihiro

AU - Goto, T.

AU - Yoshimura, K.

AU - Zhang, W.

AU - Sato, N.

AU - Kosuge, K.

AU - Wada, Hirofumi

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N2 - We measured magnetization of Yb0.8 Y0.2InCu4 as a function of temperature down to 0.6 K, pressure up to 1.2 GPa and magnetic field up to 9 T in order to investigate what kind of ground state is realized in the high-temperature (HT) phase of YbInCu4. It is found that applying pressure of P ≥ 0.8 GPa collapses the valence transition and induces weak ferromagnetism at the lowest temperature in Yb0.8 Y0.2InCu4. The ferromagnetic phase at 1.2 GPa is characterized by a low Curie temperature of 1.7 K and an extremely small ordered moment of 0.05μB/Yb, although a Yb ion is in the tri-valent state. Some itinerancy in magnetism may play a key role in the ferromagnetism and the valence transition.

AB - We measured magnetization of Yb0.8 Y0.2InCu4 as a function of temperature down to 0.6 K, pressure up to 1.2 GPa and magnetic field up to 9 T in order to investigate what kind of ground state is realized in the high-temperature (HT) phase of YbInCu4. It is found that applying pressure of P ≥ 0.8 GPa collapses the valence transition and induces weak ferromagnetism at the lowest temperature in Yb0.8 Y0.2InCu4. The ferromagnetic phase at 1.2 GPa is characterized by a low Curie temperature of 1.7 K and an extremely small ordered moment of 0.05μB/Yb, although a Yb ion is in the tri-valent state. Some itinerancy in magnetism may play a key role in the ferromagnetism and the valence transition.

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