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H2020Individual fellowship2015–2017

SN-STM_FM · Shot noise scanning probe microscopy: probing the dynamics at the atomic scale

Horizon 2020 — Marie Skłodowska-Curie Actions

Duration
2015-04-01 → 2017-03-31
EU contribution
€173,076
Participants
1
Scheme
MSCA-IF-EF-ST

Lines connect the coordinator with its partners.

Results in brief

Shot noise scanning probe microscopy: probing the dynamics at the atomic scale

The dynamics of exotic systems such as high-temperature superconductors and heavy fermion materials is gaining ever increasing interest as it contains important clues to the mechanism driving the often unanticipated and technologically very relevant properties. To address the dynamics at the scale where the action occurs, namely that of the atoms and electrons, this Marie Curie action set out to design and construct a low temperature, finite frequency compatible shot noise scanning tunnelling microscope. Within the scope of this action, atomic scale shot noise measurements of one correlated electron system was anticipated, providing the first time-dependent information at the atomic scale of the system. Indeed, after designing and constructing the novel microscope, and subsequent extensive calibration measurements, atomic scale shot noise measurements of the high temperature superconductor Bi2Sr2CaCu2O8+x have been performed, the results of which will be published soon. Beyond the duration of this action, the new facility will continue to give powerful new information in the time domain of quantum matter systems.

Data: CORDIS, © European Union

Project objective

The dynamics of exotic systems such as high-temperature superconductors and heavy fermion materials is gaining ever increasing interest as it contains important clues to the mechanism driving the often unanticipated and technologically very relevant properties. Shot noise spectroscopy is a very powerful technique to study the dynamics of electronic correlations in such quantum electron systems, but to date has been limited to mesoscopic systems. We propose to set up, test and use an experimental probe that can perform shot noise measurements on the atomic scale, thereby gaining access to crucial information on the scale where all the action occurs: the atoms, the electrons, and – in combination with spin resolved tunneling spectroscopy – the spins. We will achieve this by developing a low temperature, high frequency compatible scanning tunneling microscope. This project will combine expertise on shot noise spectroscopy at CNRS in Paris and low temperature scanning tunneling spectroscopy expertise of the experienced researcher, and will bring important new insights into the time domain properties of correlated electron systems.

Original text from CORDIS.

Participants

  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS · ParisCoordinatorFrance

Links

Data: CORDIS, © European Union