article published yes Joost Ridderbos author Matthias Brauns author 33F94E3C-F248-11E8-B48F-1D18A9856A87 Jie Shen author Folkert K. de Vries author Ang Li author Erik P. A. M. Bakkers author Alexander Brinkman author Floris A. Zwanenburg author GeKa department A Ge–Si core–shell nanowire is used to realize a Josephson field‐effect transistor with highly transparent contacts to superconducting leads. By changing the electric field, access to two distinct regimes, not combined before in a single device, is gained: in the accumulation mode the device is highly transparent and the supercurrent is carried by multiple subbands, while near depletion, the supercurrent is carried by single‐particle levels of a strongly coupled quantum dot operating in the few‐hole regime. These results establish Ge–Si nanowires as an important platform for hybrid superconductor–semiconductor physics and Majorana fermions. Wiley2018 eng 0935-9648 1809.08487 00045023280001510.1002/adma.201802257 3044 Ridderbos J, Brauns M, Shen J, et al. Josephson effect in a few-hole quantum dot. <i>Advanced Materials</i>. 2018;30(44). doi:<a href="https://doi.org/10.1002/adma.201802257">10.1002/adma.201802257</a> J. Ridderbos, M. Brauns, J. Shen, F.K. de Vries, A. Li, E.P.A.M. Bakkers, A. Brinkman, F.A. Zwanenburg, Advanced Materials 30 (2018). Ridderbos J, Brauns M, Shen J, de Vries FK, Li A, Bakkers EPAM, Brinkman A, Zwanenburg FA. 2018. Josephson effect in a few-hole quantum dot. Advanced Materials. 30(44), 1802257. Ridderbos, Joost, et al. “Josephson Effect in a Few-Hole Quantum Dot.” <i>Advanced Materials</i>, vol. 30, no. 44, 1802257, Wiley, 2018, doi:<a href="https://doi.org/10.1002/adma.201802257">10.1002/adma.201802257</a>. J. Ridderbos <i>et al.</i>, “Josephson effect in a few-hole quantum dot,” <i>Advanced Materials</i>, vol. 30, no. 44. Wiley, 2018. Ridderbos, J., Brauns, M., Shen, J., de Vries, F. K., Li, A., Bakkers, E. P. A. M., … Zwanenburg, F. A. (2018). Josephson effect in a few-hole quantum dot. <i>Advanced Materials</i>. Wiley. <a href="https://doi.org/10.1002/adma.201802257">https://doi.org/10.1002/adma.201802257</a> Ridderbos, Joost, Matthias Brauns, Jie Shen, Folkert K. de Vries, Ang Li, Erik P. A. M. Bakkers, Alexander Brinkman, and Floris A. Zwanenburg. “Josephson Effect in a Few-Hole Quantum Dot.” <i>Advanced Materials</i>. Wiley, 2018. <a href="https://doi.org/10.1002/adma.201802257">https://doi.org/10.1002/adma.201802257</a>. 59902019-02-14T12:14:26Z2023-09-19T14:29:58Z