Mapping Donor Electron Wave Function Deformations at a Sub-Bohr Orbit Resolution

Seung Park, Purdue University - Main Campus
Rajib Rahman, Purdue University - Main Campus
Gerhard Klimeck, Network for Computational Nanotechnology, Purdue University
Lloyd CL Hollenberg, Univ Melbourne, Sch Phys, Ctr Quantum Comp Technol

Abstract

Quantum wave function engineering of dopant-based Si nanostructures reveals new physics in the solid state, and is expected to play a vital role in future nanoelectronics. Central to any fundamental understanding or application is the ability to accurately characterize the deformation of the electron wave functions in these atom-based structures through electric and magnetic field control. We present a method for mapping the subtle changes that occur in the electron wave function through the measurement of the hyperfine tensor probed by Si-29 impurities. We calculate Stark parameters for six shells around the donor. Our results show that detecting the donor electron wave function deformation is possible with resolution at the sub-Bohr radius level.

Discipline(s)

Engineering | Nanoscience and Nanotechnology