Anomalous Hall- and magneto- resistances on Cr-doped Ge in high magnetic fields observed up to room temperature

Y. Yamamoto, S. Itaya, K. Suga, T. Takenobu, Y. Iwasa, M. Hagiwara, K. Kindo, H. Hori

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Abstract

Ge1-xCrx films grown by MBE show quite large magneto-transport effects in the temperature range up to the room temperature. Especially, Hall resistance in DC- fields up to 10 Tesla and magneto-resistances in pulsed fields up to 60 Tesla show significant nonlinear field dependence. The magnetic field effects on the transport properties are usually quite small in conducting materials and phonon plays main role above liq. N2 temperature. ESR measurements suggest that antiferromagnetism up to T Naround 70 K exists and the critical spin fluctuation might affects to the nonlinear field dependence in magneto-transport phenomena in high temperatures.

Original languageEnglish
Article number025
Pages (from-to)115-118
Number of pages4
JournalJournal of Physics: Conference Series
Volume51
Issue number1
DOIs
Publication statusPublished - 2006 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yamamoto, Y., Itaya, S., Suga, K., Takenobu, T., Iwasa, Y., Hagiwara, M., Kindo, K., & Hori, H. (2006). Anomalous Hall- and magneto- resistances on Cr-doped Ge in high magnetic fields observed up to room temperature. Journal of Physics: Conference Series, 51(1), 115-118. [025]. https://doi.org/10.1088/1742-6596/51/1/025