Ferromagnetic behavior of 1:2 TCNQ/TCNQ-. mixed salts at room temperature

Toyonari Sugimoto, Kazumasa Ueda, Satoshi Endo, Naoki Toyota, Masakado Kohama, Koji Yamamoto, Hiroshi Morimoto, Toshiyuki Yamaguchi, Yusaku Suenaga, Megumu Munakata, Nobuyoshi Hosoito, Nobuko Kanehisa, Nobuyuki Shibamoto, Yasushi Kai

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Ferromagnetic behavioral room temperature was observed in the tetramethylammonium (NMe4+) and cesium (Cs+) salts of tetracyanoquinodimethane (TCNQ) and its radical anion (TCNQ-.) in a molecular ratio of 1:2. The saturation magnetizations and coercive forces are 0.79 emu/mol and ca. 300 Oe for (NMe4+·TCNQ-.)·1/2TCNQ, and 1.46 emu/mol and ca. 100 Oe for(Cs+·TCNQ-.)· 1/2TCNQ, respectively. In contrast, the 1:1 TCNQ/ TCNQ-. mixed tetraethyammonium (NEt4+) salt, (NEt4+·TCNQ-.)·TCNQ, exhibited no ferromagnetic behavior at room temperature and also at lower temperatures.

Original languageEnglish
Pages (from-to)217-226
Number of pages10
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume305
DOIs
Publication statusPublished - 1997 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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