Studies on the Linear Antiferromagnets : Magnetic Susceptibilities of Cupric Quinone Complex Salts at Low Temperatures

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概要

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• The magnetic susceptibilities of three Cu quinone complex salts were measured at low temperatures. These salts, Cu-Q-H, Cu-Q-Cl and Cu-Q-Br, are considered to have structure of magnetic one dimensional lattice. Cu-Q-H is obtained in the form of stick-like colloid whose length is shorter than a few thousand A. Some characteristics of the antiferromagnetic linear chain were found in Cu-Q-H. At the lowest temperatures, the end effect and the odd or even number effect were examined. The length of the chain of Cu-Q-H is estimated to have the number of Cu^<2+> ions more than 9. The super-exchange interaction in a chain of each salt passes through the intervening quinone-molecule. The coupling constant J between nearest neighboured Cu^<2+> ions in Cu-Q-H was estimated to be between -14k and -24k. The large J's of three salts may be attributed to the superexchange interaction through the quinone-molecule.

• 東北大学の論文

著者

• Kobayashi Hanako

  The Research Institute For Iron Steel And Other Metals

• Kanda Eizo

  The Research Institute For Iron Steel And Other Metals

• Haseda Taiichiro

  The Research Institute For Iron Steel And Other Metals

• KANDA Seiichi

  Institute of Scientific and Industrial Research, Osaka University

• Kanda Eizo

  The Research Institute For Ieon Steel And Other Metals Tohoku University

• Kanda Seiichi

  Institute Of Scientific And Industrial Research Osaka University

• HASEDA Taiichiro

  The Research Institute for Iron, Steel and Other Metals

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