Scientific Objectives:

  • Clarification of the mechanisms of the phenomenon of the STM spin noise process.

  • Improvement of the sensitivity of ESN-STM - under ambient conditions.

  • Development of a low temperature (LT)-ESN-STM - with impedance matching at LT.

  • Measurement of the g tensor of a single spin. Characterizing the dependence on the tunneling current, the bias voltage and the temperature.

  • Synthesis of tailored molecules with appropriate electronic spin properties in isolated or aggregated states and their grafting on surfaces.

  • Development of Fourier transform - quadrature detection - to distinguish between spin up or down and to measure spin flips and longitudinal relaxation times - of a single spin.

  • Measurement of hyperfine couplings at LT and UHv of molecules and defects.

  • Evaluation of the ability of ESN-STM to follow relaxation processes of isolated spin systems: Measurement of relaxation times as a function of temperature and magnetic fields.

  • Measurement of local fluctuations in the spectroscopic parameters:  Attempting to understand these local fluctuations from the STM image.

  • Measurement of the hyperfine coupling between a paramagnetic atom on the tip and the nuclei on the surface