The Effect of Spin Splitting on the Metallic Behavior of a Two-Dimensional System

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Science  26 Mar 1999:
Vol. 283, Issue 5410, pp. 2056-2058
DOI: 10.1126/science.283.5410.2056

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Experiments on a constant-density two-dimensional hole system in a gallium arsenide quantum well revealed that the metallic behavior observed in the zero–magnetic-field temperature dependence of the resistivity depends on the symmetry of the confinement potential and the resulting spin splitting of the valence band.

  • * To whom correspondence should be addressed. E-mail: papadaks{at}

  • Present address: IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USA.

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