SAMS-4 is the 4th edition of the Workshop on Scattering of Atoms and Molecules from Surfaces, which is organized every three years. Previous editions were held in Rehovot (Israel, 2010), Postdam (Germany, 2013) and Bergen (Norway, 2016) with great success. This year, organized by Prof. Daniel Farías the event will be held in Madrid.

Stefan Bilan kindly asked me to make a picture for their website. And this is what I did.

Cool, man!

[Sorry for the bad joke]

One of the issues of nanocircuits is heat dissipation. As in the macro world, at the nanoscale, it is imperative to find a way to cool circuits. Thanks to a collaboration between the University of Michigan and the Universidad Autónoma de Madrid, has been proved that a particular arrangement of molecules in nanocircuits, achieves and optimizes molecular termoelectric refrigeration.

This result has been published in Nature Nanotecnology.

Hammering viruses

Prof. Pedro de Pablo (Nanoforces Lab) has been using atomic force microscopy to break viruses for a while. Apart from the obvious pleasure that breaking things produces, their main focus is to study the stability of viruses. Viruses infect cells by releasing their highly packed genetic material. So the understanding of the stability of the viruses capsides will offer new venues for the development of novel antiviral strategies [article].

Mapping stress at the nanoscale

Stress is the main cause of failure in mechanical and electronic devices incorporating thin films. At the same time, our knowledge of stress at the nanoscale, happens to be very limited and one of the reasons is that we have no access to the measurement of stress at this tiny scale.

And this is what Celia Polop, Enrique Vasco, Alma P. Perrino and Ricardo García (Universidad Autónoma de Madrid and Material Science Institute of Madrid-CSIC) have solved. They’ve just presented a novel method to map stress on surfaces with a sub 10nm resolution. This method, supported by finite element simulations, has allowed them to map stress on polycrystalline gold films.

We made this image (featured in Nanoscale) illustrating their work, strongly supported by Enrique Vasco and Celia Polop.

Quantized thermal transport: this is big

For the first time, a solid proof of the quantized nature of thermal transport in single atom junctions. That’s it.

While quantized electrical conductance was pretty well known and proof for quite a while, quantized thermal transport observation was still slipping away from researchers eyes. Until now.

A group of researchers from Michigan University, Universidad Autonoma de Madrid and Universität Konstanz have managed to reach the amazing levels of accuracy and stability this measurement requires.

This changes the game. And we had the opportunity to make this explanatory video for them with the help of Prof. J. C. Cuevas (UAM) and Longji Cui (UMICH). One of those times when your job pays off.