Electrical resistivity measurement on the rare earth metal praseodymium under high pressure up to 32 GPa

Naoyuki Tateiwa, Akitoshi Nakagawa, Kazuhiko Fujio, Tatsuya Kawae, Kazuyoshi Takeda

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

The rare earth metal praseodymium (Pr) transforms from the d-FCC crystal structure (Pr-III) to the α-U type one (Pr-IV) at 20 GPa with a large volume collapse (ΔV/V=0.16). It has been considered that the 4f electrons in Pr ion change from the localized to itinerant states across the transition. In order to investigate the electronic state of the phase IV, we performed the high pressure electrical resistivity measurement using the diamond anvil cell (DAC) up to 32 GPa. In the Pr-IV phase, the resistivity shows an upward curvature, which suggests the narrow energy band of the itinerant 4f electrons near Fermi energy. At higher temperature side of the Pr-IV phase, the resistivity shows a small hump-like anomaly at T0.

本文言語英語
ページ(範囲)142-144
ページ数3
ジャーナルPhysica B: Condensed Matter
359-361
SPEC. ISS.
DOI
出版ステータス出版済み - 4 30 2005

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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