Ohm's law is well-known from physics class. It states that the resistance of a conductor and the voltage applied to it determine how much current will flow through the conductor. The electrons in the material—the negatively ...
Nanophysics
Sep 9, 2021
0
765
Progress in lithium-ion (Li-ion) batteries have made all sorts of portable devices feasible and fueled the growth of electronics. However, the intrinsic disadvantages of conventional Li-ion batteries, whose cells use a liquid ...
Materials Science
Aug 27, 2021
0
233
Diodes are widely used electronic devices that act as one-way switches for current. A well-known example is the LED (light-emitting diode), but there is a special class of diodes designed to make use of the phenomenon known ...
Optics & Photonics
Apr 20, 2021
0
8
Two-dimensional (2D) semiconductors can host a rich set of excitonic species because of the greatly enhanced Coulomb interactions. The excitonic states can exhibit large oscillator strengths and strong light-matter interactions, ...
Optics & Photonics
Mar 11, 2021
0
11
New Zealand Prime Minister Jacinda Ardern paid emotional tribute to victims of the White Island volcano eruption Wednesday on the first anniversary of the disaster that claimed 22 lives.
Environment
Dec 9, 2020
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4
Researchers from MIPT and their colleagues from Ural Federal University have combined optical and acoustic approaches and found that incorporating titanium atoms into barium hexaferrite leads to an unexpected substructure ...
Materials Science
Jul 28, 2020
0
48
Scientists from the PTB and the Max Planck Institute for Nuclear Physics (MPIK), both Germany, have carried out pioneering optical measurements of highly charged ions with unprecedented precision. To do this, they isolated ...
Optics & Photonics
Jan 29, 2020
0
441
For years, physicists have assumed that Cooper pairs, the electron duos that enable superconductors to conduct electricity without resistance, were two-trick ponies. The pairs either glide freely, creating a superconducting ...
Condensed Matter
Nov 15, 2019
3
4146
In superconducting materials, an electric current will flow without any resistance. There are quite a few practical applications of this phenomenon; however, many fundamental questions remain as yet unanswered. Associate ...
Nanophysics
Nov 5, 2019
0
140
A catalyst's utility is influenced by its surface charge and how that charge is transferred. Until recently, studying charge transfer has relied on complex imaging techniques that are both expensive and time-consuming. Scientists ...
Nanomaterials
Oct 17, 2019
0
5
