Peculiar Field-Cycle Dependence of Magnetization Observed for Poly(phenyl)acetylene Prepared with a Rh Complex Catalyst

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Published 6 February 2004 • Copyright (c) 2004 The Japan Society of Applied Physics
, , Citation Yuji Watanabe et al 2004 Jpn. J. Appl. Phys. 43 L300 DOI 10.1143/JJAP.43.L300

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1 Department of Applied Physics, Hokkaido University, N13 W8, Kita-ku, Sapporo 060-8628, Japan

2 CREST, JST, N13 W8, Kita-ku, Sapporo 060-8628, Japan

3 Department of Molecular Chemistry, Graduate School of Engineering, Hokkaido University, N13 W8, Kita-ku, Sapporo 060-8628, Japan

4 Research Center of Macromolecular Technology, National Institute of Advanced Industrial Science and Technology (AIST), 2-41-6 Aomi, Koto-ku, Tokyo 135-0065, Japan

Dates

  1. Received 1 December 2003
  2. Accepted 19 December 2003
  3. Published

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1347-4065/43/2B/L300

Abstract

Magnetic field dependence of magnetization of poly(phenyl)acetylene which is known to show spin-glass-like behavior was studied at temperatures between 2 K and 300 K. Peculiar dependence of magnetization on the history of applied magnetic field, particularly the number of measurement cycles, is reported. The origin of these phenomena is discussed with respect to a possible mechanism of metastability.

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10.1143/JJAP.43.L300