A high-resolution TEM image of the nanoparticles studied in this work. Courtesy: J Belo Most materials expand when they are heated up and contract when cooled down – a phenomenon known as positive ...

Negative thermal expansion (NTE) is fascinating as it involves a material’s volume contraction rather than expansion upon heating. Although NTE lattices typically have highly flexible frameworks, the ...

When the search for habitable exoplanets requires a 1,000 times more stable telescope than James Webb Space Telescope, even minimal material expansion down to a fraction of the width of an atom is the ...