Hybrid functional devices based on graphene

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• Vincent Bouchiat, Institut Néel, CNRS-Grenoble, France
• Thursday 26 November 2015, 16:00-17:00
• Mott Seminar Room, Cavendish Laboratory.

If you have a question about this talk, please contact Stephen Walley.

Graphene has a great potential for implementation of tunable field effect devices. The accessible and surface-exposed 2D electron gas offered by graphene provides indeed an ideal platform on which to tune, via application of an electrostatic gate, the coupling between adsorbates deposited on its surface. This situation is particularly interesting when the network of adsorbates can induce some electronic order within the underlying graphene substrate, such as magnetic or superconducting correlations. We have experimentally studied the case of macroscopic graphene transistors decorated with an array of superconducting tin nanoparticles, which induce via percolation of proximity effect a global but tunable 2D superconducting state which critical temperature Tc can be tuned by gate voltage. I will present other types of generic systems where molecules on top of graphene see their interaction modulated by the electrostatic field applied to the graphene layer. In that second type of experiment, we use Raman spectroscopy as the probe te measure the modulated interaction.

This talk is part of the Physics and Chemistry of Solids Group series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Mott Seminar Room, Cavendish Laboratory
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• Physics and Chemistry of Solids Group
• School of Physical Sciences
• Thin Film Magnetic Talks

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