One-dimensional magnetism in copper phthalocyanine

S. Lee, M. Yudkowsky, W. P. Halperin, M. Y. Ogawa, and B. M. Hoffman
Phys. Rev. B 35, 5003 – Published 1 April 1987
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Abstract

Measurements of the proton spin-lattice relaxation rate, T11, reveal that the organic insulator copper phthalocyanine Cu(PC) is a highly one-dimensional Heisenberg system. T11 diverges as ω1/2 down to 11.4 MHz without evidence of cutoff. It was found that ‖J/kB‖=0.286 K with the ratio ‖J/J‖≥6×103, where J and J are the intrachain and interchain exchange interactions, indicating that Cu(PC) is an excellent model one-dimensional Heisenberg magnet.

  • Received 21 August 1986

DOI:https://doi.org/10.1103/PhysRevB.35.5003

©1987 American Physical Society

Authors & Affiliations

S. Lee, M. Yudkowsky, and W. P. Halperin

  • Department of Physics and Astronomy and Materials Research Center, Northwestern University, Evanston, Illinois 60201

M. Y. Ogawa and B. M. Hoffman

  • Department of Chemistry and Materials Research Center, Northwestern University, Evanston, Illinois 60201

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Vol. 35, Iss. 10 — 1 April 1987

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