Discovery of fundamental law of friction leads to new materials that can minimize energy loss miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
New Technique Could Shed Light on Nanoscale Phenomena
Written by AZoNanoMay 17 2021
Nowadays, several well-studied materials in numerous fields like catalysis and electronics are in the vicinity of reaching their practical limits.
(left) Schematic illustration of the technique. The stiffness of nanomaterials such as platinum (Pt) atomic chains can be measured using a length-extension resonator (LER) made with a quartz crystal. The atomic structure of the chain can be observed using a transmission electron microscope (TEM). We found that the atomic bond strength in the Pt monoatomic chains is 25 N/m, which is higher than the bulk value (20 N/m). (right) Experimental and simulated TEM images of a monoatomic Pt chain and time evolution of its electrical conductance and stiffness during stretching. The maximum strain was 24% on average. Image Credit: Yoshifumi Oshima.
Nanotechnology Now - Press Release: Hanging by a thread: Imaging and probing chains of single atoms: Scientists develop a method to visualize monoatomic chains and measure the strength and conductance of single-atom bonds nanotech-now.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nanotech-now.com Daily Mail and Mail on Sunday newspapers.
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A fascinating substance with unique properties, ice has intrigued humans since time immemorial. Unlike most other materials, ice at very low temperature is not as ordered as it could be. A collaboration between the Scuola Internazionale Superiore di Studi Avanzati (SISSA), the Abdus Salam International Centre for Theoretical Physics (ICTP), the Institute of Physics Rosario (IFIR-UNR), with the support of the Istituto Officina dei Materiali of the Italian National Research Council (CNR-IOM), made new theoretical inroads on the reasons why this happens and on the way in which some of the missing order can be recovered. In that ordered state the team of scientists have described a relatively obscure and yet fundamental property of very low temperature ice, ferroelectricity. The results, published in