@article{8692, author = {{Kähler, D and Knop, M and Kunze, U and Reuter, Dirk and Wieck, A D}}, issn = {{0268-1242}}, journal = {{Semiconductor Science and Technology}}, pages = {{140--143}}, title = {{{Dual-gate GaAs/AlGaAs quantum point contact with tuneable subband energy separation}}}, doi = {{10.1088/0268-1242/20/2/006}}, year = {{2004}}, }