Novel topological crystalline insulator shows mass appeal

Disrupting the symmetrical structure of a solid-state topological crystalline insulator creates mass in previously mass-less electrons and imparts an unexpected level of control in this nascent class of materials, an international ...

ORNL finding goes beyond surface of oxide films

(Phys.org) —Better batteries, catalysts, electronic information storage and processing devices are among potential benefits of an unexpected discovery made by Oak Ridge National Laboratory scientists using samples isolated ...

Large wave-vector phonon modes in silicon nanomembranes

(Phys.org) —Modified large wave-vector phonons in semiconductor membranes via hard X-ray thermal diffuse scattering (TDS) were observed that provide new insight into the fundamental thermal and electronic properties of ...

'Invisible' particles could enhance thermoelectric devices

Thermoelectric devices—which can either generate an electric current from a difference in temperature or use electricity to produce heating or cooling without moving parts—have been explored in the laboratory since the ...

Nano oscillators synchronized by light

(Phys.org)—Synchronization phenomena are everywhere in the physical world—from circadian rhythms to side-by-side pendulum clocks coupled mechanically through vibrations in the wall. Researchers have now demonstrated synchronization ...

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