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

doi:10.1088/1742-6596/51/1/025

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Ge_1-xCr_x 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 language	English
Article number	025
Pages (from-to)	115-118
Number of pages	4
Journal	Journal of Physics: Conference Series
Volume	51
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/51/1/025
Publication status	Published - 2006 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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

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.",

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T1 - Anomalous Hall- and magneto- resistances on Cr-doped Ge in high magnetic fields observed up to room temperature

AU - Yamamoto, Y.

AU - Itaya, S.

AU - Suga, K.

AU - Takenobu, T.

AU - Iwasa, Y.

AU - Hagiwara, M.

AU - Kindo, K.

AU - Hori, H.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - 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.

AB - 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.

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

Abstract

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