| Texto completo | |
| Autor(es): |
Patlatiuk, T.
[1]
;
Scheller, C. P.
[1]
;
Hill, D.
[2]
;
Tserkovnyak, Y.
[2]
;
Egues, J. C.
[3]
;
Barak, G.
[4]
;
Yacoby, A.
[4]
;
Pfeiffer, L. N.
[5]
;
West, K. W.
[5]
;
Zumbuehl, D. M.
[1]
Número total de Autores: 10
|
| Afiliação do(s) autor(es): | [1] Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel - Switzerland
[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 - USA
[3] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[4] Harvard Univ, Dept Phys, Cambridge, MA 02138 - USA
[5] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 - USA
Número total de Afiliações: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physical Review Letters; v. 125, n. 8 AUG 21 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
We perform momentum-conserving tunneling spectroscopy using a GaAs cleaved-edge overgrowth quantum wire to investigate adjacent quantum Hall edge states. We use the lowest five wire modes with their distinct wave functions to probe each edge state and apply magnetic fields to modify the wave functions and their overlap. This reveals an intricate and rich tunneling conductance fan structure which is succinctly different for each of the wire modes. We self-consistently solve the Poisson-Schrodinger equations to simulate the spectroscopy, reproducing the striking fans in great detail, thus, confirming the calculations. Further, the model predicts hybridization between wire states and Landau levels, which is also confirmed experimentally. This establishes momentum-conserving tunneling spectroscopy as a powerful technique to probe edge state wave functions. (AU) | |
| Processo FAPESP: | 16/50200-4 - Quantum correction to the conductivity of 2D electron gases near the Rashba-Dresselhaus SU(2) sysmmetry point |
| Beneficiário: | José Carlos Egues de Menezes |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 16/08468-0 - Isolantes topológicos e férmions de Majorana |
| Beneficiário: | José Carlos Egues de Menezes |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |