Magnetic focusing with quantum point contacts in the non-equilibrium transport regime

T. M. Chen, M. Pepper, I. Farrer, D. A. Ritchie, G. A.C. Jones

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We report an experimental investigation of magnetic focusing in the 1D non-equilibrium transport regime and utilize it to study the energy variation of electrons propagating through a quantum point contact. The results give insight into the behavior of electrons with different energies when current is both unidirectional and bidirectional, in particular, a splitting of the focusing peaks which demonstrates that the intrinsic resistance within the point contact is negligible and that the voltage drop is at least 3 μm away from the ends of the point contact.

Original languageEnglish
Article number093503
JournalApplied Physics Letters
Volume103
Issue number9
DOIs
Publication statusPublished - 2013 Aug 26

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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