Ares, Natalia; Golovach, Vitaly N; Katsaros, GeorgiosIST Austria; Stoffel, Mathieu; Fournel, Frank; Glazman, Leonid I; Schmidt, Oliver G; De Franceschi, Silvano
We report an electric-field-induced giant modulation of the hole g factor in SiGe nanocrystals. The observed effect is ascribed to a so-far overlooked contribution to the g factor that stems from the mixing between heavy- and light-hole wave functions. We show that the relative displacement between the confined heavy- and light-hole states, occurring upon application of the electric field, alters their mixing strength leading to a strong nonmonotonic modulation of the g factor.
Physical Review Letters
We acknowledge financial support from the Nanosciences Foundation (Grenoble, France), DOE under Contract No. DEFG02-08ER46482 (Yale), the Agence Nationale de la Recherche, and the European Starting Grant. G. K. acknowledges support from the European Commission via a Marie Curie Carrer Integration Grant and the FWF for a Lise-Meitner Fellowship
Ares N, Golovach V, Katsaros G, et al. Nature of tunable hole g factors in quantum dots. Physical Review Letters. 2013;110(4). doi:10.1103/PhysRevLett.110.046602
Ares, N., Golovach, V., Katsaros, G., Stoffel, M., Fournel, F., Glazman, L., … De Franceschi, S. (2013). Nature of tunable hole g factors in quantum dots. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.110.046602
Ares, Natalia, Vitaly Golovach, Georgios Katsaros, Mathieu Stoffel, Frank Fournel, Leonid Glazman, Oliver Schmidt, and Silvano De Franceschi. “Nature of Tunable Hole g Factors in Quantum Dots.” Physical Review Letters. American Physical Society, 2013. https://doi.org/10.1103/PhysRevLett.110.046602.
N. Ares et al., “Nature of tunable hole g factors in quantum dots,” Physical Review Letters, vol. 110, no. 4. American Physical Society, 2013.
Ares N, Golovach V, Katsaros G, Stoffel M, Fournel F, Glazman L, Schmidt O, De Franceschi S. 2013. Nature of tunable hole g factors in quantum dots. Physical Review Letters. 110(4).
Ares, Natalia, et al. “Nature of Tunable Hole g Factors in Quantum Dots.” Physical Review Letters, vol. 110, no. 4, American Physical Society, 2013, doi:10.1103/PhysRevLett.110.046602.