Abstract
Zeeman splitting of the ground state of single impurities in the quantum well of a resonant tunneling heterostructure is reported. We determine the absolute magnitude of the effective magnetic spin splitting factor for a single impurity in a quantum well to be 0.28 0.02. This system also allows for independent measurement of the electron tunneling rates through the two potential barriers and estimation of the occupation probability of the impurity state in the quantum well.
- Received 2 June 1995
DOI:https://doi.org/10.1103/PhysRevLett.76.1328
©1996 American Physical Society