The world experienced a few centuries of apocalyptic conditions 42,000 years ago, triggered by a reversal of the Earth's magnetic poles combined with changes in the Sun's behavior. That's the key finding of our new multidisciplinary ...
Earth Sciences
Feb 19, 2021
4
290
The space environment around Earth is characterized by interactions between Earth's magnetic field and nearby plasma. A key physical process in these interactions is magnetic reconnection, in which two adjacent field lines ...
Earth Sciences
Feb 16, 2021
0
105
A NIMS research team devised a new thermoelectric generation mechanism with a hybrid structure composed of thermoelectric and magnetic materials. The team then actually fabricated this structure and observed the record-high ...
Materials Science
Feb 16, 2021
0
5
Apart from black holes, magnetars may be the most extreme stars in the universe. With a diameter less than the length of Manhattan, they pack more mass than that of our sun, wield the largest magnetic field of any known object—more ...
Astronomy
Jan 13, 2021
1
231
A remarkable prediction of Einstein's theory of general relativity—the theory that connects space, time, and gravity—is that rotating black holes have enormous amounts of energy available to be tapped.
General Physics
Jan 13, 2021
5
3010
The U.S. Department of Energy's (DOE's) Critical Materials Institute has developed a low-cost, high performance permanent magnet by drawing inspiration from an out-of-this-world source: iron-nickel alloys in meteorites. The ...
Materials Science
Dec 10, 2020
0
14
Researchers at Pohang University of Science and Technology (POSTECH) and Seoul National University in South Korea have demonstrated a new way to enhance the energy efficiency of a non-volatile magnetic memory device called ...
General Physics
Dec 10, 2020
1
25
Scientists of Far Eastern Federal University (FEFU) with international collaborators have proposed direct magnetic writing of skyrmions, i.e., magnetic quasiparticles, and skyrmion lattices, within which it is possible to ...
Nanomaterials
Nov 30, 2020
0
13
Magnetic materials are ubiquitous in modern society, present in nearly all the technological devices we use every day. In particular, personal electronics like smartphones/watches, tablets, and desktop computers all rely ...
Quantum Physics
Nov 18, 2020
0
59
Free electron X-ray lasers deliver intense, ultrashort pulses of X-rays, which can be used to image nanometer-scale objects in a single shot. When the X-ray wavelength is tuned to an electronic resonance, magnetization patterns ...
General Physics
Sep 21, 2020
0
16
