News tagged with hall effect
Exotic quantum states: A new research approach
(PhysOrg.com) -- Theoretical physicists of the University of Innsbruck have formulated a new concept to engineer exotic, so-called topological states of matter in quantum mechanical many-body systems. They ...
Oct 03, 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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Redefining the kilogram and the ampere
New research using graphene presents the most precise measurements of the quantum Hall effect ever made, one of the key steps in the process to redefine two SI units.
Sep 29, 2011 |
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Is graphene the best quantum resistance standard?
New research from NPL's Quantum Detection Group presents the most precise measurements of the quantum Hall effect ever made, using the two-dimensional material graphene.
Sep 19, 2011 |
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Using magnetic fields to control newly identified state of matter could enable more efficient memory devices
Scientists in Japan have shown that the properties of a recently discovered state of matter—a chiral spin liquid—can be controlled by applying a magnetic field1, a concept that could be harnessed ...
Sep 09, 2011 |
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Better 'photon loops' may be key to computer and physics advances
Surprisingly, transmitting information-rich photons thousands of miles through fiber-optic cable is far easier than reliably sending them just a few nanometers through a computer circuit. However, it may soon ...
Aug 22, 2011 |
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Charge it: Neutral atoms made to act like electrically charged particles
(PhysOrg.com) -- Completing the story they started by creating synthetic magnetic fields, scientists from the Joint Quantum Institute (JQI), a collaboration of the National Institute of Standards and Technology a ...
Mar 31, 2011 |
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NIST's new scanning probe microscope is supercool
The discoveries of superconductivity, the quantum Hall effect and the fractional quantum Hall effect were all the result of measurements made at increasingly lower temperatures. Now, pushing the regime of ...
Dec 12, 2010 |
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When old is new again: Hall effect associated with electrons also occurs in non-charged particles
(PhysOrg.com) -- Just as electronics revolutionized computing and communications technology, spintronics is touted to follow suit. This relatively new field involves manipulating the flow of a magnetism-related ...
Oct 04, 2010 |
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Research gives insight into using graphene in electronics
(PhysOrg.com) -- New findings from the laboratory of University of Illinois researcher Joe Lyding are providing valuable insight into graphene, a single two-dimensional layer of graphite with numerous electronic and mechanical ...
Nanotechnology / Nanomaterials
Sep 22, 2010 |
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Graphene shows strange new behavior better suited for electronic devices
Regarded as a possible replacement for silicon-based semiconductors, graphene, a sheet of pure carbon, has been discovered to have an uncommon and astonishing property that might make it better matched for ...
Nanotechnology / Nanomaterials
Jul 29, 2010 |
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Artificial magnetic fields for light could illuminate correlated quantum systems
(PhysOrg.com) -- In general, the field of many-body physics involves the interactions and collective behavior of large numbers of particles. Scientists have made significant progress in exploring this field, ...
Feb 03, 2010 |
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European researchers make breakthrough in developing super-material graphene
(PhysOrg.com) -- A collaborative research project has brought the world a step closer to producing a new material on which future nanotechnology could be based. Researchers across Europe, including the UK's ...
Nanotechnology / Nanomaterials
Jan 19, 2010 |
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Researchers create 'synthetic magnetic fields' for neutral atoms
(PhysOrg.com) -- Achieving an important new capability in ultracold atomic gases, researchers at the Joint Quantum Institute, a collaboration of the National Institute of Standards and Technology and the University ...
Dec 02, 2009 |
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New study confirms exotic electric properties of graphene
(PhysOrg.com) -- First, it was the soccer-ball-shaped molecules dubbed buckyballs. Then it was the cylindrically shaped nanotubes. Now, the hottest new material in physics and nanotechnology is graphene: ...
Nanotechnology / Nanomaterials
Nov 17, 2009 |
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