News tagged with ferromagnetic materials
An unlikely route to ferroelectricity
(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...
May 18, 2012 |
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Ferroelectric oxides do the twist
(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 ...
Apr 12, 2012 |
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Magnetic cloak: Physicists create device invisible to magnetic fields
Autonomous University of Barcelona researchers, in collaboration with an experimental group from the Academy of Sciences of Slovakia, have created a cylinder which hides contents and makes them invisible to ...
Mar 22, 2012 |
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An electrical switch for magnetic current
(PhysOrg.com) -- A new mechanism will make it possible to switch data storage in the future. Researchers at the Max Planck Institute of Microstructure Physics in Halle use a short electric pulse to change ...
Mar 01, 2012 |
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Researchers resolve controversy over gallium manganese arsenide that could boost spintronic performance
A long-standing controversy regarding the semiconductor gallium manganese arsenide, one of the most promising materials for spintronic technology, looks to have been resolved. Researchers with the Lawrence ...
Feb 27, 2012 |
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Origin of large polarization in multiferroic YMnO3 thin films
Multiferroic materials have attracted much interest because of their ability to control magnetism through the application of a voltage. This ability can be utilized to reduce the power required by electronic ...
Feb 16, 2012 |
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A 50-year quest to isolate the thermoelectric effect is now over: Magnon drag unveiled
In a paper published in Nature Materials, a group of researchers at the Catalan Institute of Nanotechnology (ICN, Spain) led by Prof. Sergio O. Valenzuela reports the observation of the magnon drag. This w ...
Dec 18, 2011 |
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New nanostructure-based process will streamline production of magnetic materials
Scientists at the University of Massachusetts Amherst report that for the first time they have designed a much simpler method of preparing ordered magnetic materials than ever before, by coupling magnetic ...
Sep 27, 2011 |
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Building better memories with supramolecular structures that act as tiny magnets
In a step towards realizing ultrahigh-density storage devices based on individual molecules behaving as magnets, researchers in Japan have developed a candidate building block -- a supramolecular ferromagnet, ...
Sep 16, 2011 |
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Novel magnetic material operates under extreme stress conditions
(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 ...
Sep 16, 2011 |
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Ultrathin copper-oxide layers behave like quantum spin liquid
(PhysOrg.com) -- Magnetic studies of ultrathin slabs of copper-oxide materials reveal that at very low temperatures, the thinnest, isolated layers lose their long-range magnetic order and instead behave like ...
Jun 10, 2011 |
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Chameleon magnets: ability to switch magnets 'on' or 'off' could revolutionize computing
(PhysOrg.com) -- What causes a magnet to be a magnet, and how can we control a magnet's behavior? These are the questions that University at Buffalo researcher Igor Zutic, a theoretical physicist, has been ...
May 27, 2011 |
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Electron 'pairing': Triplet superconductivity proven experientially for first time
Researchers at Ruhr-Universitat Bochum, Christian-Albrechts-Universitat zu Kiel and Santa Barbara have made the first experimental breakthrough in quantum physics: Their studies on the "pairing behavior" of electrons have ...
Dec 01, 2010 |
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Scientists demonstrate more efficient way to connect nanoparticles for single-electron devices
(PhysOrg.com) -- By connecting single nano-objects together, scientists can fabricate tiny solid-state devices through which a precisely controlled single-electron current can flow. In the past several years, ...
Oct 28, 2010 |
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Probing spin liquids with a new pulsed-magnet system
Entirely new experimental vistas could be opened by a device called a precursor pulsed-magnet system developed by an international team of scientists. This system can generate magnetic fields as high as 30 ...
Aug 30, 2010 |
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