Search results for phonons

Nanomaterials Nov 4, 2020

High thermoelectric performance achieved in P-type alloys

Recently, scientists from the Institute of Solid State Physics, along with their collaborators from the Southern University of Science and Technology (SUSTech), reported high thermoelectric performance of p-type Bi0.4Sb1.6Te3 ...

Superconductivity Nov 3, 2020

A new approach for studying electric charge arrangements in a superconductor

High-temperature superconductors are a class of materials that can conduct electricity with almost zero resistance at temperatures that are relatively high compared to their standard counterparts, which must be chilled to ...

General Physics Nov 2, 2020

Researchers develop a high-power, portable terahertz laser

Researchers at MIT and the University of Waterloo have developed a high-power, portable version of a device called a quantum cascade laser, which can generate terahertz radiation outside of a laboratory setting. The laser ...

Materials Science Oct 29, 2020

Better thermoelectric properties achieved in n-type composite

Recently, a research team from the Institute of Solid State Physics, Hefei Institutes of Physical Science showed a way to achieve high thermoelectric properties in n-type Bi2Te2.7Se0.3 (BTS).

Materials Science Oct 26, 2020

Researchers investigate material properties for longer-lasting, more efficient solar cells

The designers of solar cells know their creations must contend with a wide range of temperatures and all sorts of weather conditions—conditions that can impact their efficiency and useful lifetime.

Materials Science Oct 16, 2020

Scientists discover mechanisms behind thermoelectric material

Recently, a research group led by Prof. Zhang Yongsheng from the Institute of Solid State Physics, Hefei Institutes of Physical Science successfully explained the novel physical mechanisms behind pyrite-type ZnSe2.

Materials Science Oct 15, 2020

Sprinkled with power: How impurities enhance a thermoelectric material at the atomic level

In the search for solutions to ever-worsening environmental problems, such as the depletion of fossil fuels and climate change, many have turned to the potential of thermoelectric materials to generate power. These materials ...

Superconductivity Oct 14, 2020

RETRACTED ARTICLE: Researchers synthesize room temperature superconducting material

Compressing simple molecular solids with hydrogen at extremely high pressures, University of Rochester engineers and physicists have, for the first time, created material that is superconducting at room temperature.

Nanomaterials Oct 13, 2020

Surface waves can help nanostructured devices keep their cool

Due to the continuing progress in miniaturization of silicon microelectronic and photonic devices, the cooling of device structures is increasingly challenging. Conventional heat transport in bulk materials is dominated by ...

General Physics Sep 29, 2020

The magnetization dynamics of rare-earth metals and the role of ultrafast magnon generation

Rare-earth magnetism is dominated by localized 4f electrons, relative to inner transition metals (that are mostly comprised of lanthanides) and cannot be directly excited through an optical laser pulse. As a result, ultrafast ...

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