UCI scientists reveal mechanism of electron charge exchange in molecules

Irvine, Calif., Oct. 14, 2019 – Researchers at the University of California, Irvine have developed a new scanning transmission electron microscopy method that enables visualization of the electric charge density of materials at sub-angstrom resolution. With this technique, the UCI scientists were able to observe electron distribution between atoms and molecules and uncover clues to the origins of ferroelectricity, the capacity of certain crystals to possess spontaneous electric polarization that can be switched by the application of an electric field.

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The Materials Research Society Congratulates John B. Goodenough, M. Stanley Whittingham and Akira Yoshino on Receiving the Nobel Prize in Chemistry 2019

According to the official Nobel announcement, “The Nobel Prize in Chemistry 2019 rewards the development of the lithium-ion battery. This lightweight, rechargeable and powerful battery is now used in everything from mobile phones to laptops and electric vehicles. It can also store significant amounts of energy from solar and wind power, making possible a fossil fuel-free society.”

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Seeing sound: Scientists observe how acoustic interactions change materials at the atomic level

By using sound waves, scientists have begun to explore fundamental stress behaviors in a crystalline material that could form the basis for quantum information technologies.

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Paramagnetic Spins Take Electrons for a Ride, Produce Electricity from Heat

Local thermal perturbations of spins in a solid can convert heat to energy even in a paramagnetic material – where spins weren’t thought to correlate long enough to do so. This effect, “paramagnon drag thermopower,” converts a temperature difference into an electrical voltage.

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