The Weyl semimetal Tantalum Arsenide has a colossal bulk photovoltaic effect – an intrinsic, or non-linear, generation of current from light more than ten times larger than ever previously achieved, according to researchers from Boston College, the University of California Los Angeles, and Ecole Polytechnique Federale de Lausanne. Credit: Kenneth Burch/Boston College Read more here. DOI: https://doi.org/10.1038/s41563-019-0297-4
Universe Preceded by an Antiuniverse?
A new cosmology model suggests that our Universe has a mirror image in the form of an “antiuniverse” that existed before the big bang, see Synopsis here.
One-Way Transfer of Magnetic Fields
Researchers have created a material that acts as a magnetic diode, transferring magnetism from one object to another but not the other way around. An electric current flowing through a coil of copper wire induces a magnetic field in the coil. This magnetic field can then transfer to a nearby magnetic object, such as a second coil of wire. The laws of electromagnetism, and experimental…
Nobel Prize 2018 — Lasers as Tools
The 2018 Nobel Prize in Physics goes to innovators in laser physics responsible for optical tweezers and high-intensity, ultrashort optical pulses. For more information see Physics Focus and Press Release.