Earth's magnetic field is crucial for our existence, as it shields the life on our planet's surface from deadly cosmic rays. It is generated by turbulent motions of liquid iron in Earth's core. Iron is a metal, which means ...
General Physics
Jan 28, 2015
14
2327
(Phys.org) —Angela Hight Walker of PML's Semiconductor and Dimensional Metrology Division and colleagues have succeeded in measuring a previously unknown but essential property − thermal conductivity −of an ultra-thin ...
Nanophysics
May 23, 2014
0
0
Scientists at the Max Planck Institute for Polymer Research (MPI-P) in Mainz and the National University of Singapore have attested that the thermal conductivity of graphene diverges with the size of the samples. This discovery ...
Nanomaterials
May 13, 2014
18
2
(Phys.org) —Graphene, a one-atom-thick form of the carbon material graphite, has been hailed as a wonder material—strong, light, nearly transparent, and an excellent conductor of electricity and heat. But a number of ...
Nanomaterials
May 6, 2014
0
0
Materials that can be used for thermoelectric devices—those that turn a temperature difference into an electric voltage—have been known for decades. But until now there has been no good explanation for why just a few ...
Materials Science
Apr 29, 2014
0
0
Polymer materials are usually thermal insulators. But by harnessing an electropolymerization process to produce aligned arrays of polymer nanofibers, researchers have developed a thermal interface material able to conduct ...
Nanomaterials
Mar 30, 2014
0
0
We all learn in high school science about the dual nature of light - that it exists as both waves and quantum particles called photons. It is this duality of light that enables the coherent transport of photons in lasers. ...
Condensed Matter
Feb 5, 2014
1
0
When engineers design devices, they must often join together two materials that expand and contract at different rates as temperatures change. Such thermal differences can cause problems if, for instance, a semiconductor ...
Nanomaterials
Dec 2, 2013
1
0
A team of researchers from the University of California, Riverside's Bourns College of Engineering have solved a problem that previously presented a serious hurdle for the use of graphene in electronic devices.
Nanomaterials
Sep 3, 2013
0
0
An unlikely material, cubic boron arsenide, could deliver an extraordinarily high thermal conductivity – on par with the industry standard set by costly diamond – researchers report in the current issue of the journal ...
Nanomaterials
Jul 8, 2013
1
3
