Spherical, cylindrical and tetrahedral symmetries; hydrogenic states at high magnetic field in Si:P

Authors

R A. Lewis, University of WollongongFollow
A Bruno-Alfonso, Universidade Estadual Paulista
G V B de Souza, Universidade Estadual Paulista
R E M Vickers, University of WollongongFollow
J A Colla, University of WollongongFollow
E Constable, University of WollongongFollow

RIS ID

85691

Publication Details

Lewis, R., Bruno-Alfonso, A., de Souza, G., Vickers, R., Colla, J. & Constable, E. (2013). Spherical, cylindrical and tetrahedral symmetries; hydrogenic states at high magnetic field in Si:P. Scientific Reports, 3 (3488), 1-3.

Abstract

Phosphorous donors in silicon have an electronic structure that mimics the hydrogen atom, albeit on a larger length, smaller energy and smaller magnetic field scale. While the hydrogen atom is spherically symmetric, an applied magnetic field imposes cylindrical symmetry, and the solid-state analogue involves, in addition, the symmetry of the Si crystal. For one magnetic field direction, all six conduction-band valleys of Si:P become equivalent. New experimental data to high laboratory fields (30 T), supported by new calculations, demonstrate that this high symmetry field orientation allows the most direct comparison with free hydrogen.

Grant Number

ARC/DP130102956

Additional Grant Number

http://purl.org/au-research/grants/arc/DP130102956