Magnetic-field effects on the pseudogap in CeRhAs

Shunsuke Yoshii, Koichi Kindo, Tetsuya Sasakawa, Toshiaki Suemitsu, Toshiro Takabatake

Research output: Contribution to journalArticlepeer-review


The electrical resistivity and magnetization M(H) of single crystal CeRhAs, which is the so-called Kondo insulator, have been measured in magnetic field up to 55 T. At 1.3 K, the slopes of M(H b) and M(H∥c) decrease at around 16 and 13 T, respectively, while M(H∥a) increases monotonously. The longitudinal magnetoresistances along the b- and c-axes show characteristic structures partly associated with the anomaly of M(H), while it along the a-axis shows only a broad maximum. The transverse magnetoresistances for I/:b follow Hγ (γ = 1.5-1.7). These observations suggest the existence of a narrow and anisotropic structure within the wide pseudogap.

Original languageEnglish
Pages (from-to)568-569
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberII
Publication statusPublished - 2003 May
Externally publishedYes


  • CeRhAs
  • High magnetic field
  • Kondo insulator
  • Transport and magnetic properties

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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