News tagged with magnetic interactions
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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Monkeys with larger friend networks have more gray matter
New research in the UK on rhesus macaque monkeys has found for the first time that if they live in larger groups they develop more gray matter in parts of the brain involved in processing information on social ...
Other Sciences / Social Sciences
Nov 04, 2011 |
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Unexpected magnetic excitations in doped insulator surprise researchers
When doping a disordered magnetic insulator material with atoms of a nonmagnetic material, the conventional wisdom is that the magnetic interactions between the magnetic ions in the material will be weakened.
Oct 24, 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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Like humans, chimps are born with immature forebrains
In both chimpanzees and humans, portions of the brain that are critical for complex cognitive functions, including decision-making, self-awareness and creativity, are immature at birth. But there are important differences, ...
Aug 11, 2011 |
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Tunnel view of how electrons play
(PhysOrg.com) -- Electrons behave like football teams: the match becomes interesting when the teamwork is as good as that conjured up by the players of FC Barcelona. Electrons which interact strongly with ...
Jun 21, 2011 |
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Superconductivity's third side unmasked
The debate over the mechanism that causes superconductivity in a class of materials called the pnictides has been settled by a research team from Japan and China. Superconductivity was discovered in the pnictides ...
Jun 17, 2011 |
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Team calculates the role of buried layers in few-layer epitaxial graphene
A CNST-led collaboration with the University of Maryland and the University of Texas has computed how electrostatic interactions between electrons in different layers of few-layer graphene affect the properties ...
Nanotechnology / Nanomaterials
Jun 08, 2011 |
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Neutron analysis reveals '2 doors down' superconductivity link
Neutron scattering analysis of two families of iron-based materials suggests that the magnetic interactions thought responsible for high-temperature superconductivity may lie "two doors down": The key magnetic ...
Feb 07, 2011 |
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Magnetism relieves electrons of their resistance
(PhysOrg.com) -- Physics is sometimes just like a criminal investigation. Researchers gather one piece of evidence after another in order to solve a mystery - for example, the question as to how unconventional ...
Dec 13, 2010 |
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X-Ray observations of an extrasolar planetary system
(PhysOrg.com) -- The majority of extra-solar planets (about 278 of them) are more massive than Jupiter. About 20% of this majority group orbit their stars at a distances of less than one-tenth of an astronomical ...
Oct 22, 2010 |
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The art of mindreading -- empathy or rational inference?
The ability to infer what another person is thinking is an essential tool for social interaction and is known by neuroscientists as "Theory of Mind" (ToM), but how does the brain actually allow us to do this? We are able ...
Medicine & Health / Neuroscience
May 04, 2010 |
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Brain imaging may help diagnose autism
Children with autism spectrum disorders (ASDs) process sound and language a fraction of a second slower than children without ASDs, and measuring magnetic signals that mark this delay may become a standardized ...
Medicine & Health / Medical research
Jan 08, 2010 |
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Proposed Quantum Computer Consists of Billions of Electron Spins
(PhysOrg.com) -- While researchers have already demonstrated the building blocks for few-bit quantum computers, scaling these systems up to large quantum computers remains a challenge. One of the biggest problems ...
Sep 09, 2009 |
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Brain emotion circuit sparks as teen girls size up peers
What is going on in teenagers' brains as their drive for peer approval begins to eclipse their family affiliations? Brain scans of teens sizing each other up reveal an emotion circuit activating more in girls ...
Medicine & Health / Psychology & Psychiatry
Jul 15, 2009 |
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