Magnetoresistance in PrInAg2 at 40 mK

H. Mitamura, N. Takeshita, Y. Uwatoko, H. Mori, A. Yamaguchi, T. Tomita, H. Wada, N. Môri, H. Ishimoto, T. Goto

Research output: Contribution to journalConference article

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Abstract

The magneto- (electrical-) resistivity of a Heusler-type intermetallic paramagnetic compound PrInAg2 is measured under high fields up to 12 T at 40 mK (down to 50 mK under zero field). No evidence of any transition is detected under zero field in our sample and deviations of the resistivity can well fit as ∝+log T function below 1 K down to even 50 mK. The magnetoresistivity is positive at any measuring fields. It seems that the external magnetic field dissolves the anomaly at low temperature via breaking the cubic symmetry. Moreover, the magnetoresistivity varies with +log H from 0.01 T to 1 T and is scaleable to the electrical resistivity via the relation of T∝+|Hn|(n≈2/3). Then both of the anomalies between the magneto- and the electrical-resistivity must be originated from a common source. Thereon, the value of the exponent n does not take 1, i.e. the field effect on the resistivity is not Zeemanian. It has been already known that a Pr3+(4f2) ion in the compound is located in cubic symmetry and has a non-magnetic non-Kramers doublet Γ3 ground state. It is possible that the anomalies originate from the Γ3 ground state.

Original languageEnglish
Pages (from-to)150-151
Number of pages2
JournalPhysica B: Condensed Matter
Volume281-282
DOIs
Publication statusPublished - Jun 1 2000
Externally publishedYes
EventYamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn
Duration: Aug 24 1999Aug 28 1999

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All Science Journal Classification (ASJC) codes

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

Cite this

Mitamura, H., Takeshita, N., Uwatoko, Y., Mori, H., Yamaguchi, A., Tomita, T., ... Goto, T. (2000). Magnetoresistance in PrInAg2 at 40 mK. Physica B: Condensed Matter, 281-282, 150-151. https://doi.org/10.1016/S0921-4526(99)00958-8