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First experiment at the ALBA synchrotron

The ALBA Synchrotron Light Facility has begun to function as a research tool. Of the seven experimental beamlines scientists can use to analyse their samples, the first which has begun to work is the BOREAS line, addressed to studying materials through X-ray spectroscopy. The experiments are being conducted between 6 and 10 June with the aim of studying the magnetic behaviour of specific nanoparticles which improve the properties of superconductor tapes, so that they can transmit larger amounts of electricity more efficiently.

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Physicists finds new path toward increasing semiconductor functionality

(PhysOrg.com) -- The past decade has seen the emergence of the field of spintronics, aimed at increasing the efficiency of information processing and computer memories. The idea behind spintronics is to harness the magnetic property of the electron, referred to as its spin. This property can then be used, in addition to the electron charge, for increasing the functionality of the semiconductor computer chip, in terms of its capacity to store and process information.

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New study may lead to MRIs on a nanoscale

(PhysOrg.com) -- Magnetic resonance imaging (MRI) on the nanoscale and the ever-elusive quantum computer are among the advancements edging closer toward the realm of possibility, and a new study co-authored by a UC Santa Barbara researcher may give both an extra nudge. The findings appear today in Science Express, an online version of the journal Science.

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Shaken, not heated: The ideal recipe for manipulating magnetism

(PhysOrg.com) -- Scientists have found a way to distort the atomic arrangement and change the magnetic properties of an important class of electronic materials with ultra-short pulses of terahertz (mid-infrared) laser light without heating the material up. While the achievement is currently of purely scientific interest, the researchers say this new approach control could ultimately lead to extremely fast, low-energy, non-volatile computer memory chips or data-switching devices.

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Ultrafast magnetic processes observed ‘live’ using X-ray laser

In first-of-their-kind experiments performed at the American X-ray laser LCLS, a collaboration led by researchers from the Paul Scherrer Institute has been able to precisely follow how the magnetic structure of a material changes.

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Part of Earth’s mantle shown to be conductive under high pressure and temperatures

(PhysOrg.com) -- Scientists studying the rotation of the Earth have long known that our planet doesn't have a perfect spin. Most believe this is due to the different types of materials that make up the core, mantle and crust, which all have different rates of spin causing inherent friction

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Journey Under Way to Track the Magnetic South Pole

By Nicola Jones of Nature magazine Two scientists from New Zealand will travel to Antarctica on December 28 in a quest to continue a 100-year-long record of Earth's magnetic field: a record begun by British explorer Robert Scott at the start of his ill-fated expedition to the geographic south pole (see "Turning the world upside down "). Record-keeping is necessary because the magnetic poles move about, thanks to the complex circulation of Earth's fluid outer core

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Journey Under Way to Track the Magnetic South Pole

By Nicola Jones of Nature magazine Two scientists from New Zealand will travel to Antarctica on December 28 in a quest to continue a 100-year-long record of Earth's magnetic field: a record begun by British explorer Robert Scott at the start of his ill-fated expedition to the geographic south pole (see "Turning the world upside down "). Record-keeping is necessary because the magnetic poles move about, thanks to the complex circulation of Earth's fluid outer core.

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Electrically controlling magnetic polarization of nuclei offers new way to store quantum information

Storing information in long-lasting quantum states is a prerequisite for building quantum computers. Intrinsic properties of nuclei known as magnetic spins are good storage candidates because they interact weakly with their environment; however, controlling them is difficult

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A new spin on understanding plasma confinement

To achieve nuclear fusion for practical energy production, scientists often use magnetic fields to confine plasma. This creates a magnetic (or more precisely "magneto-hydrodynamic") fluid in which plasma is tied to magnetic field lines, and where regions of plasma can be isolated and heated to very high temperatures—typically 10 times hotter than the core of the sun! At these temperatures the plasma is nearly superconducting, and the magnetic field becomes tightly linked to the plasma, able to provide the strong force needed to hold in the hot fusion core. The overall plasma and magnetic field structure becomes akin to that of an onion, where magnetic field lines describe surfaces like the layers in the onion.

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