Abstract
The ground state of an impurity in the center of a quantum well is calculated variationally, including both the Coulomb and the short-range potential V S in the presence of a perpendicular magnetic field. The chemical shifts ΔE due to V S are determined together with the wave function at the impurity site ‖F(0,0)‖2. Both of these quantities show a significant increase (over an order of magnitude for donors in GaAs) when the well width is reduced. The increase in ΔE should be observable in far-infrared impurity spectra while the increase in ‖F(0,0)‖2 should appear in the electron-spin-resonance linewidths. Large chemical shifts in quantum wells might be helpful in identifying the chemical nature of residual donors.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.