Charge ordered insulating state in DODHT salts

H. Nishikawa, Y. Sato, T. Kodama, K. Kikuchi, I. Ikemoto, J. Yamada, H. Oshio, R. Kondo, S. Kagoshima

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Abstract

Radical salts based on DODHT [(1,4-dioxane-2,3-diyldithio)dihydrotetrathiafulvalene] are semiconductors at ambient pressure, but some salts (PF 6, AsF 6, and BF 4 · H 2O salts) exhibit supuerconducting transition under hydrostatic pressure. X-ray diffraction and magnetic susceptibility measurements at ambient pressure for PF 6 salt revealed that the insulating phase at ambient pressure corresponds to a charge ordering (CO) state with stripe-type charge pattern. While the similar magnetic behavior was observed for BF 4 · H 2O salt, temperature dependence of magnetic susceptibility of AsF 6 salt is quite different from those of the other salts.

Original languageEnglish
Pages (from-to)643-647
Number of pages5
JournalJournal of Low Temperature Physics
Volume142
Issue number3-4
DOIs
Publication statusPublished - Feb 2006

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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    Nishikawa, H., Sato, Y., Kodama, T., Kikuchi, K., Ikemoto, I., Yamada, J., Oshio, H., Kondo, R., & Kagoshima, S. (2006). Charge ordered insulating state in DODHT salts. Journal of Low Temperature Physics, 142(3-4), 643-647. https://doi.org/10.1007/s10909-006-9106-y