The negative-U impurity stripes confining the edge channels of semiconductor quantum wells are shown to allow the effective cooling inside in the process of the spin-dependent transport, with the reduction of the electron-electron interaction. The aforesaid promotes also the creation of composite bosons and fermions by the capture of single magnetic flux quanta on the edge channels under the conditions of low sheet density of carriers, thus opening new opportunities for the registration of the quantum kinetic phenomena in weak magnetic fields at high temperatures up to the room temperature. As a certain version noted above we present the first findings of the high temperature de Haas-van Alphen, 300K, quantum Hall, 77K, effects as well as quantum conductance staircase in the silicon sandwich structure that represents the ultra-narrow, 2 nm, p-type quantum well (Si-QW) confined by the delta barriers heavily doped with boron on the n-type Si (100) surface.
Kinetics of electron-phonon scattering in silicon resolved by Rydberg transitions of donors
Radboud University(拉德堡德大学);Paul Scherrer Institute(保罗谢勒研究所);ETH Zurich(苏黎世联邦理工学院);Institute of Space Research, German Aerospace Center (DLR)(德国航空航天中心空间研究所);Leibniz-Institut für Kristallzüchtung (IKZ)(莱布尼茨晶体生长研究所);University of Iowa(爱荷华大学);Eindhoven University of Technology(埃因霍温理工大学);University of Surrey(萨里大学)