Magnetic properties of oxygen physisorbed in Cu-trans-1,4-cyclohexanedicarboxylic acid

Wasuke Mori, Tatsuo C. Kobayashi, Junji Kurobe, Kiichi Amaya, Yasuo Narumi, Takayuki Kumada, Koichi Kindo, Hiroko Aruga Katori, Tuneaki Goto, Noboru Miura, Satoshi Takamizawa, Hirokazu Nakayama, Kizashi Yamaguchi

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46 Citations (Scopus)

Abstract

Magnetic properties of oxygen physisorbed in Cu-trans-1,4-cyclohexanedicarboxylic acid having one-dimensional micropores are studied. O2 is well known as a magnetic molecule with S=1. In the case of the low adsorption, temperature dependence of the susceptibility shows the Schottky-type broad peak and the high-field magnetization process has a step at around 34T with saturation moment of 2 μB/O2. These results are interpreted by the dimer model of S=1/2 with an antiferromagnetic exchange interaction. Broadening of the step of magnetization with increasing the adsorption may be due to the interdimer interaction or the distribution of the intra-dimer exchange interaction. Linear magnetization process which is characteristic of one-dimensional Heisenberg antiferromagnet has not been observed even in the full pore region.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume306
DOIs
Publication statusPublished - 1997

ASJC Scopus subject areas

  • Condensed Matter Physics

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