News tagged with magnetic effects

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

created Jul 29, 2010 | popularity 4.7 / 5 (23) | comments 3 | with audio podcast

An energy-saving magnetic fridge? Perhaps, but first some basic research

(PhysOrg.com) -- Forget the magnets on your fridge. How about a magnet in your fridge, one that keeps your leftover pizza cold while consuming less energy than today’s refrigerators?

Physics / Condensed Matter

created Jul 05, 2010 | popularity 4.3 / 5 (24) | comments 11 | with audio podcast

Physicists investigate the role of quantum entanglement in the magnetic compasses of animals

(PhysOrg.com) -- Many animals possess some kind of magnetic sense, allowing them to navigate by using a magnetic field. The ability to detect a magnetic field, called magnetoreception, has been observed in ...

Physics / Quantum Physics

created Jun 21, 2010 | popularity 4.4 / 5 (27) | comments 18 | with audio podcast feature

Study shows that size affects structure of hollow nanoparticles

A new study from North Carolina State University shows that size plays a key role in determining the structure of certain hollow nanoparticles. The researchers focused on nickel nanoparticles, which have interesting ...

Nanotechnology / Nanomaterials

created Apr 12, 2010 | popularity 3 / 5 (2) | comments 0 | with audio podcast

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, ...

Physics / Quantum Physics

created Feb 03, 2010 | popularity 4.7 / 5 (19) | comments 1 | with audio podcast feature

Golden ratio discovered in a quantum world

Researchers from the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB, Germany), in cooperation with colleagues from Oxford and Bristol Universities, as well as the Rutherford Appleton Laboratory, ...

Physics / Quantum Physics

created Jan 07, 2010 | popularity 4.8 / 5 (56) | comments 12 | with audio podcast

Toshiba develops essential technology for spintronics-based MOS field-effect transistor

(PhysOrg.com) -- Toshiba Corporation today announced that it has developed MOSFET cell based on spin transport electronics, or spintronics, an advanced semiconductor technology that makes use of the spin and ...

Technology / Semiconductors

created Dec 09, 2009 | popularity 4.6 / 5 (12) | comments 1

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 ...

Physics / Quantum Physics

created Dec 02, 2009 | popularity 4.9 / 5 (17) | comments 2

Smart memory foam made smarter

Researchers from Northwestern University and Boise State University have figured out how to produce a less expensive shape-shifting "memory" foam, which could lead to more widespread applications of the material, such as ...

Chemistry / Materials Science

created Sep 24, 2009 | popularity 3.7 / 5 (7) | comments 1

Scientists discover, visualize exotic electrons on surfaces of unique insulators

(PhysOrg.com) -- In two separate studies, Princeton-led teams of scientists have found a new type of “light-like” electron and visualized for the first time another type that doesn’t bounce back when material imperfections ...

Physics / General Physics

created Aug 10, 2009 | popularity 4.8 / 5 (14) | comments 2

Unexpectedly Long-Range Effects in Advanced Magnetic Devices

(PhysOrg.com) -- A tiny grid pattern has led materials scientists at the National Institute of Standards and Technology (NIST) and the Institute of Solid State Physics in Russia to an unexpected finding—the ...

Physics / Condensed Matter

created Jul 01, 2009 | popularity 4 / 5 (11) | comments 2

'Colossal' Magnetic Effect Under Pressure

(PhysOrg.com) -- Millions of people today carry around pocket-sized music players capable of holding thousands of songs, thanks to the discovery 20 years ago of a phenomenon known as the “giant magnetoresistance ...

Physics / General Physics

created Jun 05, 2009 | popularity 4.4 / 5 (23) | comments 3

Nanophysicists find unexpected magnetic effect: Kondo effect noted in single-atom contacts of pure ferromagnets

Spanish and U.S. physicists studying nanoelectronics have found that size really does matter when it comes to predicting the behavior of electrical contacts that are just one atom wide.

Physics / General Physics

created Apr 29, 2009 | popularity 4.6 / 5 (7) | comments 0

Cattle respond to magnetic fields from power lines

(AP) -- High-voltage power lines mess with animal magnetism. Researchers, who reported last year that most cows and deer tend to orient themselves in a north-south alignment, have now found that power lines can disorient ...

Biology / Plants & Animals

created Mar 16, 2009 | popularity 3.9 / 5 (10) | comments 9

Stress disrupts human thinking, but the brain can bounce back

(PhysOrg.com) -- A new neuroimaging study on stressed-out students suggests that male humans, like male rats, don’t do their most agile thinking under stress. The findings, published this month in the Proceedings of the Na ...

Medicine & Health / Medical research

created Jan 27, 2009 | popularity 3.8 / 5 (6) | comments 1