Author:
Jiao Hui-Cong ,An Xing-Tao ,Liu Jian-Jun , , ,
Abstract
In the paper, we study electronic transport property through a quantum point contact with the saddle-point potential. Our numerical approach is based on the Green's function technique which is evaluated at the Hartree-Fork level. We reproduce relevant features of 0.7 structure when the strength of electron-electron interaction has changed. Besides, we calculate spin accumulation and noise factor at zero temperature. We deepen the understanding of the effect of strong correlation interaction on spin transport in nanometer semiconductor device.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Reference20 articles.
1. Yan S S, Gan Z Z 1995 Mesoscopic Physics (Beijing: Beijing University Press) p3 (in Chinese) [阎守胜, 甘子钊 1995 介观物理 (北京: 北京大学出版社)第3页]
2. van Wees B J, van Houten H, Beenakker C W J, Williamson J G, Kouwenhoven L P, van der Marel D, Foxon C T 1988 Phys. Rev. Lett. 60 848
3. Wharam D A, Thornton T J, Newbury R, Pepper M, Ahmed H, Frost J E F, Hasko D G, Peacock D C, Ritchie D A, Jones G A C 1988 J. Phys. C 21 L209
4. Thomas K J, Nicholls J T, Simmons M Y, Pepper M, Mace D R, Ritchie D A 1996 Phys. Rev. Lett. 77 135
5. Cornaglla P S, Balseiro C A, Avignon M 2005 Phys. Rev. B 71 024432