Absence of evidence for chiral Majorana modes in quantum anomalous Hall-superconductor devices
Abstract
Chiral Majorana modes have been predicted to exist in heterostructures consisting of a quantum anomalous Hall insulator and a superconductor. Kayyalha et al. fabricated more than 30 such samples and used transport measurements to look for signatures of the Majorana modes. The data indicated that the transport signatures previously thought to be associated with Majorana physics could, in their samples, be explained using a more mundane mechanism.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 03, 2020
- Source ID
- 10.1126/science.aax6361
Entities
People
- Charles Gould
- Cui-Zu Chang
- Di Xiao
- Fei Wang
- Jaeho Shin
- Jue Jiang
- Kajetan M. Fijalkowski
- Laurens W. Molenkamp
- Ling Zhang
- Martin Winnerlein
- Morteza Kayyalha
- Moses H. W. Chan
- Nitin Samarth
- Pankaj Mandal
- Qi Li
- Run Xiao
- Ruoxi Zhang
- Yi-Fan Zhao
Organizations
- National Science Foundation
- Office of Naval Research
- Pennsylvania State University
- United States Department of Energy
- University of Würzburg