April 15, 2021 02:00 PM Paris (GMT +2)
ID: 993 0424 8826
Password: Hofstadter
ESR-STM : from continuous-wave to pulsed mode
Thursday April 15 at 2:00 pm (GMT+2) Paris time
Abstract : ESR-STM : from continuous-wave to pulsed mode
Hervé Aubin
Universités Paris-Saclay, CNRS, Centre de Nanosciences et de Nanotechnologies, 91120, Palaiseau, France
*Work done during visiting at : Center for Quantum Nanoscience, Institute for Basic Science (IBS), Seoul 03760, Republic of Korea
ESR-STM is an emerging technique that enables spin-resonance detection of single spins.
The principle of this method consists in measuring the spin-polarized tunnel current as function of the frequency of a microwave signal (DC- 40 GHz) irradiating the sample.
In this talk, I will first describe the working principles of ESR-STM used in the continuous mode and its application to measurements of the magnetic spectrum of magnetic molecules(FePc) deposited on Ag(100)/MgO(100).
Second, I will show that ESR-STM can also be used in the pulsed mode, enabling single spin manipulation. I will show that best results are obtained by designing sequences combining microwave pulses and tip-bias pulses.
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