Magnetic field sensors can enhance applications that require efficient electric energy management. Improving magnetic field sensors below the picoTesla range could enable a technique to measure brain activity at room temperature ...
Condensed Matter
Dec 18, 2018
0
20
The magnetoresistance effect is the tendency of a material to change the value of its electrical resistance in an externally-applied magnetic field. It has been widely applied in sensors and hard disk heads. So far, no link ...
General Physics
Apr 27, 2018
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133
Electronics could work faster if they could read and write data at terahertz frequency, rather than at a few gigahertz. Creating such devices would be eased with materials that can undergo a huge change in how easily they ...
Nanophysics
Feb 20, 2018
0
18
From various magnetic tapes, floppy disks and computer hard disk drives, magnetic materials have been storing our electronic information along with our valuable knowledge and memories for well over half of a century.
General Physics
Jan 9, 2018
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548
Physicists at the U.S. Department of Energy's Ames Laboratory compared similar materials and returned to a long-established rule of electron movement in their quest to explain the phenomenon of extremely large magnetoresistance ...
General Physics
Dec 7, 2017
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2
(Phys.org)—In 2015, scientists discovered a new magnetoresistance effect—that is, a new way in which magnetization affects a material's electric resistance—but hadn't yet found a promising application for the discovery, ...
Scientists at Tokyo Institute of Technology, the Kanagawa Academy of Science and Technology have reported an unusual charge distribution of Pb2+Pb4+3Co2+2Co3+2O12 for a perovskite PbCoO3 synthesized at 12 GPa, with charge ...
Materials Science
May 9, 2017
0
6
Colossal magnetoresistance is a property with practical applications in a wide array of electronic tools including magnetic sensors and magnetic RAM. New research from a team including Carnegie's Maria Baldini, Ho-Kwang "Dave" ...
Condensed Matter
Aug 11, 2015
1
29
More than 150 years ago, William Thomson, later Lord Kelvin, discovered the magnetoresistive effect. Today, this finding enables sensors to measure the rotational speed of a car wheel, and is also used in compass navigation ...
General Physics
Jun 16, 2015
0
68
Changing the polarity of the magnetic field response of a material one thousandth the width of a human hair may seem like the stuff of science fiction, but that's exactly what's happening at NIST.
General Physics
Jul 11, 2014
0
0
