Search results for phonons

Condensed Matter Oct 18, 2022

Making a case for femto-phono-magnetism in ultrafast times

Magnetic matter can be regulated by ultrafast laser pulses in the field of ferromagnetism. In a new report now published in Science Advances, Sangeeta Sharma and a team of scientists at the Max-Planck Institute in Germany ...

Materials Science Oct 7, 2022

Researchers develop thermoformable ceramics, 'a new frontier in materials'

It was one of those happy accidents of science. Northeastern professor Randall Erb and Ph.D. student Jason Bice were working on a product for a university client—and wound up with an entirely new class of material.

Nanophysics Oct 7, 2022

New system designs nanomaterials that conduct heat in specific ways

Computer chips are packed with billions of microscopic transistors that enable powerful computation, but also generate a great deal of heat. A buildup of heat can slow a computer processor and make it less efficient and reliable. ...

Quantum Physics Oct 7, 2022

Stabilizing polarons opens up new physics

Physicists at EPFL have developed a formulation to solve the longstanding problem of electron self-interaction when studying polarons—quasiparticles produced by electron-phonon interactions in materials. The work can lead ...

Analytical Chemistry Sep 16, 2022

Decoupling engineering of formamidinium–cesium perovskites for efficient photovoltaics

Metal halide perovskites (ABX3) have emerged as promising candidates for various optoelectronic applications due to their excellent optoelectronic properties and low-cost fabrication. At present, the light-absorbing layer ...

Condensed Matter Sep 12, 2022

The strange behavior of sound through solids

Not everything needs to be seen to be believed; certain things are more readily heard, like a train approaching its station. In a recent paper, published in Physical Review Letters, researchers have put their ears to the ...

General Physics Sep 7, 2022

A fresh look at metals reveals a 'strange' similarity

Our theoretical understanding of the way in which metals conduct electricity is incomplete. The current taxonomy appears to be too blurry and contains too many exceptions to be convincing. This is the conclusion that materials ...

Condensed Matter Aug 29, 2022

Chemical trends in high thermoelectric performance proved in pyrite-type dichalcogenides

Prof. Zhang Yongsheng's research group at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has systematically investigated the thermoelectric (TE) properties of three pyrite-type IIB-VIA2 dichalcogenides ...

Nanophysics Aug 24, 2022

Researchers reveal origin of ultrafast mystery signals in valleytronic materials

Tiny materials hold big mysteries, the solutions to which could bring about next-generation electronics. An international collaboration led by researchers based in Japan has solved the whodunit of cryptic overtone signals ...

Superconductivity Aug 15, 2022

Scientists clarify how best known superconductor works

In a series of experiments on lanthanum superhydride with impurities, researchers from Skoltech, Lebedev Physical Institute of RAS and their colleagues from the United States, Germany and Japan, have established the mechanism ...

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