Hamilton Colloquium Series - Ali Yazdani, Princeton University, "Spotting the elusive Majorana under the microscope"

Date
Mar 26, 2015, 4:30 pm6:00 pm
Location
Jadwin A10

Details

Event Description

There has been considerable interest in creating condensed matter systems that host Majorana fermions. This goal is motivated in part by Majorana fermions’ potential use in topological qubits to perform fault-tolerant computation aided by their non-Abelian characteristics. Recently, together with Andrei Bernevig, we have proposed a new platform for the realization of Majorana fermions in condensed matter, based on chains of magnetic atoms on the surface of a superconductor. This platform lends itself to measurements with the scanning tunneling microscope (STM) that can be used to directly visualize the Majorana edge modes with both high energy and spatial resolution. Using unique STM instrumentation developed here in Jadwin, we have succeeded in creating this platform and have observed the predicted signatures of localized Majorana zero modes. I will describe our Majorana platform, the experiments to date, and the outlook for further experiments on Majorana fermions in condensed matter systems.