Search results for phonons

Optics & Photonics Jan 4, 2022

Ultrafast imaging of terahertz electric waveforms using quantum dots

Microscopic electric fields govern a remarkable variety of phenomena in condensed matter and their ultrafast evolutions drive plasmonics, phononics and highspeed nanoelectronics. Access to high-frequency electric waveforms ...

General Physics Dec 21, 2021

Researchers develop new measurements for designing cooler electronics

When cell phones, electric vehicle chargers, or other electronic devices get too hot, performance degrades, and eventually overheating can cause them to shut down or fail. In order to prevent that from happening researchers ...

Nanomaterials Dec 17, 2021

Scientists develop colossal 3D electrical anisotropy of MoAlB single crystal

Three-dimensional (3D) anisotropic functional properties of a single material (such as magnetic, electrical, thermal and optical properties, etc.) are not only conducive to the multi-use of materials, but also help to enrich ...

General Physics Dec 15, 2021

Understanding phase change materials for thermal energy storage

As the world searches for practical ways to decarbonize our activities and mitigate associated climate change, approaches to alternative energy are hampered by the intermittent nature of energy sources, such as solar and ...

Superconductivity Dec 13, 2021

New crystal structure for hydrogen compounds for high-temperature superconductivity

Superconductivity is the disappearance of electrical resistance in certain materials below a certain temperature, known as "transition temperature." The phenomenon has tremendous implications for revolutionizing technology ...

Optics & Photonics Dec 9, 2021

Towards quantum states of sound

Researchers make key steps towards generating quantum states of sound inside a microscopic device using laser light and single-photon measurements.

Superconductivity Dec 3, 2021

Iron selenide film reveals clues about superconductivity

Through their study of two-dimensional iron selenide (FeSe) films, a research team has unlocked some intriguing clues about superconductivity.

Superconductivity Dec 3, 2021

Never-before-seen electron behavior could help scientists create superwires for supercharged technology

Wakanda, the mythical setting for Marvel's superhero film "Black Panther," is home to some not-so-mythical technology. An indestructible cape might not yet be possible, but Wakanda's levitating high-speed trains could zoom ...

Nanomaterials Dec 2, 2021

Boosting thermopower of oxides via artificially laminated metal/insulator heterostructure

Thermoelectric materials have the ability to generate electricity when a temperature difference is applied to them. Conversely, they can also generate a temperature gradient when current is applied to them. Therefore, these ...

General Physics Dec 1, 2021

Magnons vs electrons: A new spin on computer processing

In 1965, Gordon Moore of Intel predicted that microprocessors would double in speed and capacity every couple of years. This prediction, now known as "Moore's Law," has with some modification in 1975 been reliably prophetic ...

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