Spin-Resolved Magneto-Tunneling and Giant Anisotropic -Factor in Broken Gap InAs-GaSb Core-Shell Nanowires.

We experimentally and computationally investigate the magneto-conductance across the radial heterojunction of InAs-GaSb core-shell nanowires under a magnetic field, , up to 30 T and at temperatures in the range 4.2-200 K. The observed double-peak negative differential conductance markedly blue-shifts with increasing .

Manipulation of Majorana bound states in proximity to a quantum ring with Rashba coupling.

The quest for Majorana zero modes in the laboratory is an active field of research in condensed matter physics. In this regard, there have been many theoretical proposals; however, their experimental detection remains elusive. In this article, we present a realistic setting by considering a quantum ring with Rashba spin-orbit coupling and threaded by a magnetic flux, in contact with a topological superconducting nanowire.

Robust midgap states in band-inverted junctions under electric and magnetic fields.

Several IV-VI semiconductor compounds made of heavy atoms, such as Pb Sn Te, may undergo band-inversion at the point of the Brillouin zone upon variation of their chemical composition. This inversion gives rise to topologically distinct phases, characterized by a change in a topological invariant. In the framework of the · theory, band-inversion can be viewed as a change of sign of the fundamental gap.