High field studies on the novel antiferromagnetic states of the organic conductor α-(BEDT-TTF)2KHg(SCN)4

Takahiko Sasaki, Naoki Toyota

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We present the magnetization and Hall effect measurements at high fields perpendicular to the conducting plane of α-(BEDT-TTF)2KHg(SCN)4, in order to get more detailed insight into the magnetic phase diagram which we have previously proposed from the magnetoresistance measurements. The magnetization curve shows a remarkable hysteresis in the same field range where the magnetoresistance does. The de Haas-van Alphen oscillations superimposed on these magnetization are essentially reversible and drastically enhanced above the high field phase boundary. Standard analysis on the Lifshitz-Kosevich theory show no field-dependence of the effective mass, essentially constant of 1.6m0 up to above the phase boundary, but that the Dingle temperature changes from 4K to 15K discontinuously at the phase boundary. The Hall resistance shows the prominent non-linear behavior at high fields above 10T. These results are discussed and compared with those by other groups.

Original languageEnglish
Pages (from-to)2296-2302
Number of pages7
JournalSynthetic Metals
Volume56
Issue number1
DOIs
Publication statusPublished - 1993 Mar 29

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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