News tagged with spin
Of orbits and ice ages: Researcher confirms that axis shifts help to propel temperature changes
Though it was first suggested well over a century ago, the hypothesis that changes in Earth’s orientation relative to its orbit influence the growth and decline of ice sheets was only recently tested.
Space & Earth / Earth Sciences
Jan 11, 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 evidence suggests large asteroid strike may have influenced Mercury's spin
(PhysOrg.com) -- Planets orbiting a sun generally, but not always spin on their axis. Some spin east to west, others west to east. Those that don’t spin are said to be tidal locked with their sun; always ...
Space & Earth / Space Exploration
Dec 12, 2011 |
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Study of switching behavior in differential dual spin valves reveals the role of interlayer couplings
Spin valves are essential building blocks in the magnetic sensors of read heads in hard disk drives. They consist of two magnetic layers separated by a non-magnetic layer and act as valves for electrons depending ...
Dec 12, 2011 |
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Team controls thermal fluctuations with spin current
(PhysOrg.com) -- A team of researchers from the NIST Center for Nanoscale Science and Technology, the University of Muenster, and West Virginia University have demonstrated control of magnetic thermal fluctuations ...
Nov 17, 2011 |
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Spin lasers in the fast lane: New concept for ultrafast lasers developed
Electrical engineers in Bochum, Germany, have succeeded in developing a new concept for ultrafast semiconductor lasers. The researchers make clever use of the intrinsic angular momentum of electrons, called spin, to successfully ...
Oct 28, 2011 |
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Bismuth-based semiconducting material could enable control of electron spin
In the developing field of spintronics, physicists are designing devices to transmit data using the inherent axial rotation, or spin, of electrons rather than their charge as is used in electronics. Weak coupling ...
Oct 14, 2011 |
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Moving forward, spin goes sideways
Building electronic devices that work without needing to actually transport electrons is a goal of spintronics researchers, since this could lead to: reduced power consumption, lower levels of signal noise, faster ...
Oct 07, 2011 |
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Physicists to develop new way of electronic computing
The University of California, Riverside has received a $1.85 million grant to develop a new way of computing that is beyond the scope of conventional silicon electronics.
Oct 05, 2011 |
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Current flowing along the edges of a promising quantum device is insensitive to its magnetic impurities
Conductors of electrical current, including copper, heat up and limit the ability to increase circuit densities. Unusual materials that exhibit the so-called ‘quantum spin Hall effect’, in which ...
Sep 30, 2011 |
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Generation of spin current by acoustic wave spin pumping
Tohoku University, Japan Science and Technology Agency (JST) and Japan Atomic Energy Agency (JAEA) announced on August 22, 2011 that Kenichi Uchida, a PhD student, and Professor Eiji Saitoh of Tohoku University and their ...
Sep 26, 2011 |
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The apple doesn't fall far from the tree; Or does it?
Research at EPFL’s Chair of Corporate Strategy and Innovation has shown that contrary to what was thought from previous studies, spin-outs don’t systematically set up shop near their parent companies. ...
Other Sciences / Economics & Business
Sep 16, 2011 |
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Could silicon be ideal in quantum computing?
(PhysOrg.com) -- "Quantum computing could provide a way to significantly speed up the way we process certain algorithms," Malcolm Carroll tells PhysOrg.com. "The primary issue, though, is that you need a well controlled two-le ...
Sep 16, 2011 |
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Spin pumping effect proven for the first time
German physicists led by Prof. Dr. Hartmut Zabel have demonstrated the spin pumping effect in magnetic layers for the first time experimentally. The behaviour of the spin pumping had previously only been predicted theoretically. ...
Sep 12, 2011 |
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Nanoscale spin waves can replace microwaves
A group of scientists from the University of Gothenburg and the Royal Institute of Technology (KTH), Sweden, have become the first group in the world to demonstrate that theories about nanoscale spin waves ...
Sep 07, 2011 |
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