Tunable anomalous Hall effect in a nonferromagnetic system

John Cumings, L. S. Moore, H. T. Chou, K. C. Ku, G. Xiang, S. A. Crooker, N. Samarth, D. Goldhaber-Gordon

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We measure the low-field Hall resistivity of a magnetically doped two-dimensional electron gas as a function of temperature and electrically gated carrier density. Comparing these results with the carrier density extracted from Shubnikov-de Haas oscillations reveals an excess Hall resistivity that increases with decreasing temperature. This excess Hall resistivity qualitatively tracks the paramagnetic polarization of the sample, in analogy to the ferromagnetic anomalous Hall effect. The data are consistent with skew scattering of carriers by disorder near the crossover to localization.

Original languageEnglish (US)
Article number196404
JournalPhysical Review Letters
Volume96
Issue number19
DOIs
StatePublished - May 26 2006

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Hall effect
electrical resistivity
electron gas
crossovers
disorders
oscillations
temperature
polarization
scattering

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Cumings, J., Moore, L. S., Chou, H. T., Ku, K. C., Xiang, G., Crooker, S. A., ... Goldhaber-Gordon, D. (2006). Tunable anomalous Hall effect in a nonferromagnetic system. Physical Review Letters, 96(19), [196404]. https://doi.org/10.1103/PhysRevLett.96.196404
Cumings, John ; Moore, L. S. ; Chou, H. T. ; Ku, K. C. ; Xiang, G. ; Crooker, S. A. ; Samarth, N. ; Goldhaber-Gordon, D. / Tunable anomalous Hall effect in a nonferromagnetic system. In: Physical Review Letters. 2006 ; Vol. 96, No. 19.
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Cumings, J, Moore, LS, Chou, HT, Ku, KC, Xiang, G, Crooker, SA, Samarth, N & Goldhaber-Gordon, D 2006, 'Tunable anomalous Hall effect in a nonferromagnetic system', Physical Review Letters, vol. 96, no. 19, 196404. https://doi.org/10.1103/PhysRevLett.96.196404

Tunable anomalous Hall effect in a nonferromagnetic system. / Cumings, John; Moore, L. S.; Chou, H. T.; Ku, K. C.; Xiang, G.; Crooker, S. A.; Samarth, N.; Goldhaber-Gordon, D.

In: Physical Review Letters, Vol. 96, No. 19, 196404, 26.05.2006.

Research output: Contribution to journalArticle

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AU - Crooker, S. A.

AU - Samarth, N.

AU - Goldhaber-Gordon, D.

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Cumings J, Moore LS, Chou HT, Ku KC, Xiang G, Crooker SA et al. Tunable anomalous Hall effect in a nonferromagnetic system. Physical Review Letters. 2006 May 26;96(19). 196404. https://doi.org/10.1103/PhysRevLett.96.196404