@article{f9c910885a27460eb0b09aebbfa8dd95,
title = "Quantum point contact with large subband energy spacings",
abstract = "Quantum point contact (QPC) with an extra metallic gate in between the split gates of a conventional QPC was fabricated and studied. Clear conductance quantization was observed at 4.2 K when a proper positive voltage was set to the middle gate of the QPC. The maximum energy spacing between the ground and the first exited state of the QPC was around 7 meV which is at least a few times larger than that of conventional QPCs. Using same approach, a possibility of making a relatively clean and long 1D wire has been tested. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4710522]",
author = "Um, {Y. J.} and Oh, {Y. H.} and M. Seo and Lee, {Seung Joon} and Yunchul Chung and N. Kim and Umansky, {Vladimir Y.} and Diana Mahalu",
note = "National Research Foundation of Korea (NRF) [2011-0003109]; Korea Science and Engineering Foundation (KOSEF) [2010-0000268]; Korea government (MEST)We thank M. Heiblum for helpful discussion and experimental support. This work was partially supported by the National Research Foundation of Korea (NRF) grant (No. 2011-0003109) and the Korea Science and Engineering Foundation (KOSEF) grant (No. 2010-0000268) funded by the Korea government (MEST).",
year = "2012",
month = apr,
doi = "https://doi.org/10.1063/1.4710522",
language = "الإنجليزيّة",
volume = "100",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "18",
}