Ortho–para conversion in the solid hydrogens at high pressures

• Published in: Физика низких температур
• Date: 2003
• Main Authors: Strzhemechny, M.A., Hemley, R.J.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2003
• Subjects: High-Pressure Studies
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/128907
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Ortho–para conversion in the solid hydrogens at high pressures / M.A. Strzhemechny, R.J. Hemley // Физика низких температур. — 2003. — Т. 29, № 9-10. — С. 941-946. — Бібліогр.: 30 назв. — англ.

At low pressures the ortho–para conversion in H₂ and D₂ is a slow process governed by the magnetic dipole interaction of nuclear magnetic moments, phonons being the main energy sink. As the pressure is raised to a few GPa and the Debye temperature increases substantially, the conversion energy finds...