Spin-Selective Electron Quantum Transport in Nonmagnetic MgZnO/ZnO Heterostructures

D. Maryenko, J. Falson, M. S. Bahramy, I. A. Dmitriev, Y. Kozuka, A. Tsukazaki, M. Kawasaki

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We report magnetotransport measurements on a high-mobility two-dimensional electron system at the nonmagnetic MgZnO/ZnO heterointerface showing distinct behavior for electrons with spin-up and spin-down orientations. The low-field Shubnikov-de Haas oscillations manifest alternating resistance peak heights which can be attributed to distinct scattering rates for different spin orientations. The tilt-field measurements at a half-integer filling factor reveal that the majority spins show usual diffusive behavior, i.e., peaks with the magnitude proportional to the index of the Landau level at the Fermi energy. By contrast, the minority spins develop "plateaus" with the magnitude of dissipative resistivity that is fairly independent of the Landau level index and is of the order of the zero-field resistivity.

Original languageEnglish
Article number197601
JournalPhysical review letters
Issue number19
Publication statusPublished - 2015 Nov 5

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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