Kavli Affiliate: Mamoru Matsuo
| First 5 Authors: Yuya Ominato, Ai Yamakage, Mamoru Matsuo, ,
| Summary:
We study a dynamical spin response of surface Majorana fermions in a
topological superconductor-magnet hybrid under microwave irradiation. We find a
method to toggle between dissipative and non-dissipative Majorana Ising spin
dynamics by adjusting the external magnetic field angle and the microwave
frequency. This reflects the topological nature of the Majorana fermions,
enhancing the Gilbert damping of the magnet, thereby, providing a detection
method for the Majorana Ising spins. Our findings illuminate a magnetic probe
for Majorana fermions, paving the path to innovative spin devices.
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