Understanding how materials behave at tiny length scales is crucial for developing future nanotechnologies and continues to be a great challenge for both theoretical and experimental physicists alike. Now, a physicist at the Institute of Electronics, Microelectronics and Nanotechnology (IEMN) in Villeneuve d'Ascq, France, has borrowed from 19th century physics to come up with a new 'universal' equation that predicts how size affects the key physical properties of nanometre-sized structures, which behave very differently from their macroscopic counterparts.
The surface-to-volume ratio of a structure increases dramatically as it is made smaller and therefore surface effects can be very important for tiny devices. 'My equation links size effects not only to this surface-to-volume ratio but also to the intrinsic nature of the nanoparticles involved - that is, whether they are fermions or bosons,' Grégory Guisbiers told physicsworld.com.
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physicsworld.com
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