Structures of hydrogen at megabar pressures

Kazutaka Nagao, Hitose Nagara, Satoshi Matsubara

研究成果: Article査読

41 被引用数 (Scopus)

抄録

The atomic and molecular phases of hydrogen at megabar pressures are studied with use of the band theoretical calculation based on the local density approximation. The free energies, in the atomic phase of the hydrogen, of structures in a tetragonal diamond family are calculated and compared with those of structures studied earlier. The Cs-IV structure is of lowest free energy at pressures from 360 GPa to 1.7 TPa. And the stable region for the (Formula presented)-Sn structure is narrow, which lies in the region from 260 GPa to 360 GPa. At pressures lower than 260 GPa, the molecular phase becomes stable. Possibilities of the metallization in the molecular phase are briefly discussed.

本文言語English
ページ(範囲)2295-2298
ページ数4
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
56
5
DOI
出版ステータスPublished - 1997
外部発表はい

ASJC Scopus subject areas

  • 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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