Hostname: page-component-7b7567c8c-kwt9d Total loading time: 0 Render date: 2026-11-13T12:25:14.768Z Has data issue: false hasContentIssue false
  • English
  • Français

Double Quantum Wire Magnetic Response

Published online by Cambridge University Press:  10 February 2011

Anatoly Yu. Smirnov,
Lev G. Mourokh and
Norman J.M. Horing
Anatoly Yu. Smirnov
Affiliation:
D-WaveSystems Inc., 320–1985 W. Broadway Vancouver, British Columbia, Canada V6J 4Y3
Lev G. Mourokh
Affiliation:
Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, NJ 07030
Norman J.M. Horing
Affiliation:
Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, NJ 07030
Get access

Abstract

The induced magnetic moment of a biased semiconductor tunnel-coupled parallel double quantum wire system is examined here. The wires are in a series arrangement with tunnel coupling to each other and to leads. Their parallel lengths and associated continuous spectrum are taken in the direction perpendicular to the lead-to-lead current. The equations of motion for the double-wire electron Green's function are formulated and analyzed using the transfer-tunneling Hamiltonian formalism. We determine the average magnetic moment of the double-wire system induced by a magnetic field applied perpendicular to the plane of the structure and we show that there are crossovers between diamagnetic and paramagnetic behavior, depending on the bias voltage, equilibrium chemical potential of the leads and temperature.

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

1. Bertoni, A., Bordone, P., Brunetti, R., Jacoboni, C., and Reggiani, S., Phys. Rev. Lett. 84, 5912 (2000).Google Scholar
2. Governale, M., Macucci, M., and Pellegrini, B., Phys. Rev. B 62, 4557 (2000).Google Scholar
3. Boese, D., Governale, M., Rosch, A., and Zülicke, U., Phys. Rev. B 64, 085315 (2001).Google Scholar
4. Kouwenhoven, L.P., Marcus, C.M., McEuen, P.L., Tarusha, S., Westervelt, R.M., and Wingreen, N.S., in Mesoscopic Electron Transport, edited by Sohn, L., Kouwenhoven, L.P., and Schön, G. (Kluwer Series E345, Dordrecht, 1997).Google Scholar
5. Loss, D. and Divincenzo, D.P., Phys. Rev. A 57, 120 (1998).Google Scholar
6. Thomas, K.J., Nicholls, J.T., Simmons, M.Y., Tribe, W.R., Davies, A.G., and Pepper, M., Phys. Rev. B 59, 12252 (1999).Google Scholar
7. Auslaender, O. M., Yakoby, A., de Ricciotto, R., Baldwin, K. W., Pfeifer, L. N., and West, K. W., Science 295, 825 (2002).Google Scholar
8. Jauho, A.-P., Wingreen, N.S., and Meir, Y., Phys. Rev. B 50, 5528 (1994).Google Scholar