Heat capacity of liquid 4He confined in a nanoporous glass

Keiichi Yamamoto, Yoshiyuki Shibayama, Keiya Shirahama

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We report a preliminary study of heat capacities of 4He confined in a nanoporous Gelsil glass that has nanopores of 2.5 nm in diameter. The heat capacity has a broad peak at a temperature far above the superfluid transition temperature obtained by torsional oscillator technique. The heat-capacity peak is attributed to formation of localized Bose-Einstein Condensates in the nanopores, in which the long-range superfluid coherence is destroyed by pore size distribution or random potential inherent to the porous glass.

本文言語English
ページ(範囲)353-357
ページ数5
ジャーナルJournal of Low Temperature Physics
150
3-4
DOI
出版ステータスPublished - 2008 2

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学

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