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Yttrium hydride : ウィキペディア英語版 | Yttrium hydride Yttrium hydride is a compound of hydrogen and yttrium. It exists in several forms, the most common being a metallic compound with formula YH2. YH2 has a face centred cubic structure. Under great pressure, extra hydrogen can combine to yield an insulator with a hexgonal structure, with a formaul close to YH3. Hexagonal YH3 has a band gap of 1.8 eV. Under pressure of 12 GPa YH3 transforms to an intermediate state, and when the pressure increases to 22 Gpa another metallic face centred cubic phase is formed. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Yttrium hydride」の詳細全文を読む
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