Engineering of hole-spin polarization in nanowires

Ulrich Zülicke; Dan Csontos

doi:10.1117/12.765230

9 January 2008 Engineering of hole-spin polarization in nanowires

Ulrich Zülicke, Dan Csontos

Proceedings Volume 6800, Device and Process Technologies for Microelectronics, MEMS, Photonics, and Nanotechnology IV; 68000A (2008) https://doi.org/10.1117/12.765230
Event: SPIE Microelectronics, MEMS, and Nanotechnology, 2007, Canberra, ACT, Australia

Abstract

We present a theoretical study of Zeeman spin splitting for quasi-onedimensional valence-band edges in cylindrical nanowires subject to a magnetic field parallel to the wire direction. The interplay between quantum confinement and strong spin-orbit coupling in the valence band gives rise to a controllable large variation of the effective g-factor for single wire levels. A direct correspondence is established between values for hole g-factors and characteristic spin-polarization profiles for wire-level bound states. The correlation between hole spin splittings and polarizations is mapped over the range of spin-orbit coupling strengths present in typical semiconductor materials. We propose to use nanowire subband edges as a versatile laboratory for experimental and theoretical study of the complex spin properties exhibited by quantum-confined holes.

Citation Download Citation

Ulrich Zülicke and Dan Csontos "Engineering of hole-spin polarization in nanowires", Proc. SPIE 6800, Device and Process Technologies for Microelectronics, MEMS, Photonics, and Nanotechnology IV, 68000A (9 January 2008); https://doi.org/10.1117/12.765230

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