Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session W42: Superconductivity in Topological Systems
3:00 PM–6:00 PM,
Thursday, March 9, 2023
Room: Room 318
Sponsoring
Unit:
DMP
Chair: Javad Shabani, New York University
Abstract: W42.00003 : Measuring Induced gap of InAs/NbTiN using quantum point contacts in Integer Quantum Hall regime*
4:12 PM–4:24 PM
Presenter:
Mehdi Hatefipour
(New York Universiry)
Authors:
Mehdi Hatefipour
(New York Universiry)
Ashley Argueta
(New York University)
William M Strickland
(New York University (NYU))
Ido Levy
(New York University)
Enrico Rossi
(William & Mary)
Javad Shabani
(New York University (NYU))
Indium Arsenide (InAs) near surface quantum wells are ideal for the fabrication of semiconductor-superconductor heterostructures given that they allow for a strong hybridization between the two-dimensional electron gas (2DEG) in the quantum well and the states in the superconductor. The possibility to drive the 2DEG into different quantum Hall (QH) states, combined with the strong hybridization between 2DEG and superconductor, makes possible, in principle, the realization of non-Abelian anyons with richer statistics than Majorana modes. We introduce NbTiN-InAs in a strong magnetic field as a potential candidate platform to realize non-Abelian anyons, and study the gap induced via the proximity effect, in strong magnetic fields. To quantify the QH-edge-states’ pairing correlations induced by proximity, we fabricate a quantum point contact (QPC) at the interface between the superconductor and the 2DEG. By varying the gate voltage of the QPC we control the number of QH edge modes which can get in close proximity of the superconductor, and by measuring the QPC conductance we extract the strength of the edge modes’ pairing correlation.
*E.R acknowledge support by DOE-BES, Grant DOE DE-SC0022245.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700