The giant magneto-volume effect in solid oxygen

K. Katsumata, S. Kimura, U. Staub, Y. Narumi, Y. Tanaka, S. Shimomura, T. Nakamura, S. W. Lovesey, T. Ishikawa, H. Kitamura

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

X-ray diffraction measurements on α-solid oxygen under an applied magnetic field are reported. The volume of α-solid O2 is found to expand with increasing magnetic field: the lattice constants a and b elongate, while the lattice constant c and the angle β are almost independent of the magnetic field. The maximum volume expansion observed is about 1% under a 7.5 T field, which is a giant effect compared to the volume change observed in ferromagnetic metals, such as Fe, Co and Ni. This finding indicates that a spin-dependent inter-molecular potential is essential in determining the structure of α-solid O2. The experimental results conform with predictions based on a magneto-elastic interaction derived from an antiferromagnetic exchange coupling of O2 spins.

Original languageEnglish
Pages (from-to)L235-L239
JournalJournal of Physics Condensed Matter
Volume17
Issue number23
DOIs
Publication statusPublished - 2005 Jun 15

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'The giant magneto-volume effect in solid oxygen'. Together they form a unique fingerprint.

  • Cite this

    Katsumata, K., Kimura, S., Staub, U., Narumi, Y., Tanaka, Y., Shimomura, S., Nakamura, T., Lovesey, S. W., Ishikawa, T., & Kitamura, H. (2005). The giant magneto-volume effect in solid oxygen. Journal of Physics Condensed Matter, 17(23), L235-L239. https://doi.org/10.1088/0953-8984/17/23/L03