Magnetic study of pressure-induced superconductivity in the [Pd(dmit) 2] salt with spin-gapped ground state

Yasuyuki Ishii, Masafumi Tamura, Reizo Kato

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Static magnetic measurements have been applied for the pressure-induced superconducting state in the P21/m phase of EtMe 3P[Pd(dmit)2]2 (Et = C2H 5, Me = CH3 and dmit2- = 1,3-dithiol-2-thione- 4,5-dithiolate, C3S5 2-), which exhibits valence bond (VB) ordering with a spin gap at ambient pressure. Evidence for bulk superconductivity is given. The pressure dependence of the transition temperature (Tc) is obtained in the pressure range 0.2- 0.5 GPa. A possible relation between the VB order and the superconductivity is suggested on the basis of the phase diagram. The nonlinear magnetization process is analyzed to determine the behavior of the lower critical field (Hc1).

Original languageEnglish
Article number033704
JournalJournal of the Physical Society of Japan
Volume76
Issue number3
DOIs
Publication statusPublished - 2007 Mar
Externally publishedYes

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superconductivity
salts
ground state
valence
thiols
pressure dependence
magnetic measurement
transition temperature
phase diagrams
magnetization

Keywords

  • Magnetic susceptibility
  • Pd(dmit)
  • Pressure
  • Superconductivity
  • Triangular antiferromagnet
  • Valence bond order

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magnetic study of pressure-induced superconductivity in the [Pd(dmit) 2] salt with spin-gapped ground state. / Ishii, Yasuyuki; Tamura, Masafumi; Kato, Reizo.

In: Journal of the Physical Society of Japan, Vol. 76, No. 3, 033704, 03.2007.

Research output: Contribution to journalArticle

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