Development of Accurate and Precision Measurement Techniques for Research in Basic Solid State Physics under High Pressure at Low Temperatures

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  • MÔRI Nobuo
    University of Tokyo and Saitama University (Professor Emeritus)

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  • 低温超高圧下の精密計測技術開発による物性基礎研究
  • 受賞記念解説 高圧力学会賞 低温超高圧下の精密計測技術開発による物性基礎研究
  • ジュショウ キネン カイセツ コウアツリョク ガッカイショウ テイオン チョウコウアツカ ノ セイミツ ケイソク ギジュツ カイハツ ニ ヨル ブッセイ キソ ケンキュウ

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Abstract

  Due to the lack of appropriate instrumentation, the amount of accurate and precision data is limited on basic physical properties connected with quantum effects and low-energy excitations in the fields of combined high pressure and low temperature. A technical breakthrough has been achieved with a set-up at ISSP, University of Tokyo, equipped with a cubic-anvil device and a top-loading cryostat. Many interesting phenomena originated from electron-electron correlation effects, such as high-Tc superconductivities, spin fluctuations, charge and valence fluctuations, and others near a quantum critical point, have been revealed at pressures extended far beyond 10 GPa and at temperatures down to ca. 2 K, some topics of which are reviewed.<br>

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