We observe a lifting of the twofold spin degeneracy of conduction-band electrons in an upper-valley subband with in-plane magnetic field in a SiO 2 /Si (100) / SiO2 quantum well, which is manifest in a splitting of a feature in the conductivity accompanying the occupation of the upper-valley subband. The splitting increases in proportion to the in-plane magnetic field, allowing the product of the effective g -factor and effective mass g m to be obtained. The value remains constant over wide ranges of valley splitting, total electron density, and potential bias.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)