caa a22 4500 463215117 CHVBK 20180405153154.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s00339-007-3900-5 doi (NATIONALLICENCE)springer-10.1007/s00339-007-3900-5 Quantum point contact due to Fermi-level pinning and doping profiles in semiconductor nanocolumns [Elektronische Daten] [K.M. Indlekofer, M. Goryll, J. Wensorra, M.I. Lepsa] We show that nanoscale doping profiles inside a nanocolumn in combination with Fermi-level pinning at the surface give rise to the formation of a saddle-point in the potential profile. Consequently, the lateral confinement inside the channel varies along the transport direction, yielding an embedded quantum point contact. An analytical estimation of the quantization energies is given. Springer-Verlag, 2007 Indlekofer K.M. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut Goryll M. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut Wensorra J. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut Lepsa M.I. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut Applied Physics A Springer-Verlag 87/3(2007-06-01), 559-562 0947-8396 87:3<559 2007 87 339 https://doi.org/10.1007/s00339-007-3900-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-007-3900-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Indlekofer K.M. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut NATIONALLICENCE 700 1- Goryll M. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut NATIONALLICENCE 700 1- Wensorra J. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut NATIONALLICENCE 700 1- Lepsa M.I. Center of Nanoelectronic Systems for Information Technology, IBN-1, Research Centre Jülich, 52425, Jülich, Germany aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 87/3(2007-06-01), 559-562 0947-8396 87:3<559 2007 87 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer