1. D−centers probed by resonant tunneling spectroscopy
- Author
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P. C. Main, I. K. Marmorkos, Andre K. Geim, T.J. Foster, Mohamed Henini, Nobuya Mori, J.G.S. Lok, Jan C. Maan, François M. Peeters, Laurence Eaves, and J. W. Sakai
- Subjects
Physics ,Astrophysics::High Energy Astrophysical Phenomena ,Scanning tunneling spectroscopy ,Resonance ,equipment and supplies ,Magnetic field ,Condensed Matter::Materials Science ,Astrophysics::Solar and Stellar Astrophysics ,Physics::Chemical Physics ,Atomic physics ,Spectroscopy ,Ground state ,Quantum well ,Shallow donor ,Quantum tunnelling - Abstract
A donor-related resonance is observed in double-barrier resonant tunneling devices with Si donors incorporated in the quantum well. In high magnetic fields the resonance becomes dominant over the Is resonance associated with the ground state of a single donor. The bias position of the donor resonance, its magnetic field dependence, and large amplitude indicate unambiguously that the resonance is due to tunneling through the ground state of a shallow donor with two bound electrons (D- level).
- Published
- 1996
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