[en] We theoretically discuss electronic transport via Majorana states in magnetic topological insulatorsuperconductor junctions with an asymmetric split of the applied bias voltage. We study normal-superconductornormal (NSN) junctions made of narrow (wirelike) or wide (filmlike) magnetic topological insulator slabs with a central proximitized superconducting sector. The occurrence of charge-nonconserving Andreev processes entails a nonzero conductance related to an electric current flowing to ground from the proximitized sector of the NSN junction. We show that topologically protected Majorana modes require an antisymmetry of this conductance with respect to the point of equally split bias voltage across the junction.
Disciplines :
Physics
Author, co-author :
Miceli, Daniele; Institute for Cross-Disciplinary Physics and Complex Systems (CSIC-UIB), Palma, Spain ; Department of Physics and Materials Science, University of Luxembourg, Luxembourg, Luxembourg
Zsurka, Eduárd ; Department of Physics and Materials Science, University of Luxembourg, Luxembourg, Luxembourg ; Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, Jülich, Germany ; JARA-Fundamentals of Future Information Technology, Jülich-Aachen Research Alliance, Forschungszentrum Jülich and RWTH Aachen University, Jülich, Germany
LEGENDRE, Julian ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
MOORS, Kristof ; University of Luxembourg > Faculty of Science, Technology and Medicine > Department of Physics and Materials Science ; Peter Grünberg Institute (PGI-9), Forschungszentrum Jülich, Jülich, Germany ; JARA-Fundamentals of Future Information Technology, Jülich-Aachen Research Alliance, Forschungszentrum Jülich and RWTH Aachen University, Jülich, Germany
SCHMIDT, Thomas ; University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) ; School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
Serra, Llorenç ; Institute for Cross-Disciplinary Physics and Complex Systems (CSIC-UIB), Palma, Spain ; Department of Physics, University of the Balearic Islands, Palma, Spain
External co-authors :
yes
Language :
English
Title :
Conductance asymmetry in proximitized magnetic topological insulator junctions with Majorana modes
