A new device has been fabricated that can demonstrate the quantum anomalous Hall effect, in which tiny, discrete voltage steps are generated by an external magnetic field. This work may enable extremely low-power electronics, ...
Quantum Physics
Sep 12, 2022
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493
Dilute magnetic semiconductors (DMS) have recently been a major focus of magnetic semiconductor research. A laboratory from the University of Science and Technology of China explored the feasibility of doping manganese (Mn) ...
Condensed Matter
Feb 20, 2012
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0
(Phys.org) -- Some materials, by their nature, do what we want them to do -- notably, the ubiquitous, semiconducting silicon found in almost every electronic device. But sometimes, naturally occurring materials need a little ...
Condensed Matter
Apr 12, 2012
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0
(PhysOrg.com) -- The Fermi level position and band structure of gallium manganese arsenide has been determined for the first time, shedding light on the precise mechanism behind ferromagnetism in the material.
General Physics
Mar 29, 2011
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0
The fact that an ultrashort laser pulse is capable of demagnetizing a ferromagnetic layer in a jiffy has been well-known since approximately 1996. What we don't yet understand, however, is how exactly this demagnetization ...
Condensed Matter
Jan 27, 2013
1
0
A review published in IEEE Transactions on Magnetics compiles the approaches that have been employed for reading and storing information in antiferromagnets and answers the question about how to write on antiferromagnetics ...
General Physics
Jun 5, 2015
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46
As demands for computing resources continue to increase rapidly, scientists and engineers are looking for ways to build faster systems for processing information. One possible solution is to use patterns of electron spins, ...
Condensed Matter
Jan 31, 2024
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594
Vortices are common in nature, but their formation can be hampered by long range forces. In work recently published in Nature Materials, an international team of researchers has used mapped X-ray magnetic linear and circular ...
General Physics
Aug 13, 2018
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110
(PhysOrg.com) -- Ferromagnetic materials are key ingredients in vast arrays of technologies including wind turbines, computer hard-disks, credit card readers, and many more. Typically these magnets operate in moderate environments. ...
Condensed Matter
Sep 16, 2011
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0
Spanish and U.S. physicists studying nanoelectronics have found that size really does matter when it comes to predicting the behavior of electrical contacts that are just one atom wide.
General Physics
Apr 29, 2009
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