Transport properties under high pressure of antiferromagnet EuPt2 Si2 with unstable Eu valence

Y. Ikeda, Akihiro Mitsuda, N. Ietaka, T. Mizushima, Y. Isikawa, T. Kuwai

研究成果: ジャーナルへの寄稿学術誌査読

8 被引用数 (Scopus)

抄録

Electrical resistivity ρ (T) of the antiferromagnet EuPt2 Si2(TN = 16 K) between 2 and 300 K under hydrostatic pressure up to 2.6 GPa is presented. With applying pressure, TN monotonically shifts to the lower temperature range. Simultaneously, a characteristic upturn in ρ (T), which lies between 150 K and TN at ambient pressure, moves to higher temperatures accompanying a broad peak on the lower temperature end. In addition, an extra logarithmic upturn around 20 K between 1.9 and 2.4 GPa was newly noticed. These results are brought by the competitive state between magnetic order, valence transformation and probably Kondo effect in this compound.

本文言語英語
ジャーナルJournal of Magnetism and Magnetic Materials
310
2 SUPPL. PART 1
DOI
出版ステータス出版済み - 3月 1 2007

!!!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

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