Search results for phonons

Nanophysics Jun 11, 2021

Researchers observe sound-light pulses in 2D materials for the first time

Using an ultrafast transmission electron microscope, researchers from the Technion—Israel Institute of Technology have, for the first time, recorded the propagation of combined sound and light waves in atomically thin materials.

Quantum Physics Jun 9, 2021

Researchers realize unconventional coherent control of solid-state spin qubits

A research team led by Prof. Guo Guangcan from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), together with Prof. Adam Gali from Wigner Research Centre for Physics, realized ...

General Physics Jun 2, 2021

World's smallest, best acoustic amplifier emerges from 50-year-old hypothesis

Scientists at Sandia National Laboratories have built the world's smallest and best acoustic amplifier. And they did it using a concept that was all but abandoned for almost 50 years.

General Physics May 31, 2021

Phonon catalysis could lead to a new field

Batteries and fuel cells often rely on a process known as ion diffusion to function. In ion diffusion, ionized atoms move through solid materials, similar to the process of water being absorbed by rice when cooked. Just like ...

Materials Science May 27, 2021

Comprehensive electronic-structure methods for materials design

Nicola Marzari, head of the Theory and Simulation of Materials laboratory at EFPL and director of NCCR MARVEL, has just published a review of electronic-structure methods as part of a special edition Insight on Computational ...

Optics & Photonics May 10, 2021

THz emission spectroscopy reveals optical response of GaInN/GaN multiple quantum wells

A team of researchers at the Institute of Laser Engineering, Osaka University, in collaboration with Bielefeld University and Technical University Braunschweig in Germany, came closer to unraveling the complicated optical ...

Nanomaterials May 7, 2021

Discovery of huge Raman scattering at atomic point contact

Nanofabrication of electronic devices has reached a single nanometer scale (10-9 m). The rapid advancement of nanoscience and nanotechnology now requires atomic-scale optical spectroscopy in order to characterize atomistic ...

Quantum Physics May 6, 2021

Team directs and measures quantum drum duet

Like conductors of a spooky symphony, researchers at the National Institute of Standards and Technology (NIST) have "entangled" two small mechanical drums and precisely measured their linked quantum properties. Entangled ...

Superconductivity May 5, 2021

Superconductivity, high critical temperature found in 2D semimetal tungsten nitride

Superconductivity in two-dimensional (2D) systems has attracted much attention in recent years, both because of its relevance to our understanding of fundamental physics and because of potential technological applications ...

Optics & Photonics Apr 30, 2021

World's first fiber-optic ultrasonic imaging probe for future nanoscale disease diagnostics

Scientists at the University of Nottingham have developed an ultrasonic imaging system, which can be deployed on the tip of a hair-thin optical fiber, and will be insertable into the human body to visualize cell abnormalities ...

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