Latest Ferromagnetism Stories

2014-06-10 12:24:20

A team of Canadian-Bulgarian researchers has developed a promising novel approach for magnetic cooling that's far more efficient and "greener" than today's standard fluid-compression form of refrigeration. WASHINGTON, June 10, 2014 /PRNewswire-USNewswire/ -- Magnetic cooling is a promising new refrigeration technology boasting several advantages - ranging from lower energy consumption to eliminating the use of hazardous fluids - that combine to make it a much more environmentally...

Scientists Explore Ways To Synchronize Magnetic Spins For More Powerful Nanoscale Electronic Devices
2014-04-30 03:07:24

Brookhaven National Laboratory Scientists at the U.S. Department of Energy's Brookhaven National Laboratory are seeking ways to synchronize the magnetic spins in nanoscale devices to build tiny yet more powerful signal-generating or receiving antennas and other electronics. Their latest work, published in Nature Communications, shows that stacked nanoscale magnetic vortices separated by an extremely thin layer of copper can be driven to operate in unison, potentially producing a powerful...

Ion Beams Used To Create New Kinds Of Valves For Use In Spintronics
2014-02-19 10:26:38

Helmholtz-Zentrum Dresden-Rossendorf (HZDR) Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have tested a new approach to fabricating spin valves. Using ion beams, the researchers have succeeded in structuring an iron aluminium alloy in such a way as to subdivide the material into individually magnetizable regions at the nanometer scale. The prepared alloy is thus able to function as a spin valve, which is of great interest as a candidate component for use in spintronics....

2014-01-27 15:10:25

Scientists from Paris, Newcastle and Helmholtz-Zentrum Berlin have been able to switch on and off robust ferromagnetism close to room temperature by using low electric fields. Their results are inspiring for future applications in low-power spintronics, for instance in fast, efficient and nonvolatile data storage technologies. The sample consisted of a ferroelectric BaTiO3 substrate covered with a thin film of magnetic FeRh.  Experiments at BESSY II combined with other measurement methods...

Nanoparticle Magnetic Behavior Could Lead To Even Smaller Digital Memories
2013-12-19 11:32:36

Universitat Autonoma de Barcelona Electronic devices such as mobile phones and tablets spur on a scientific race to find smaller and smaller information processing and storage elements. One of the challenges in this race is to reproduce certain magnetic effects at nanometer scale. An international collaboration of scientists led by researchers from the Universitat Autònoma de Barcelona Department of Physics and the Institut Catala de Nanociencia i Nanotecnologia, and with the...

2013-09-24 10:51:07

Visualization of domain wall motion: Material defects do not impede wall motion at high velocities While searching for ever smaller devices that can be used as data storage systems and novel sensors, physicists at Johannes Gutenberg University Mainz (JGU) have directly observed magnetization dynamics processes in magnetic nanowires and thus paved the way for further research in the field of nanomagnetism. Small magnetic domain wall structures in nanowires can be used to store information...

2013-06-24 10:35:52

Materials scientists at the U.S. Department of Energy’s (DOE) Ames Laboratory  have found an accurate way to explain the magnetic properties of a compound that has mystified the scientific community for decades. The compound of lanthanum, cobalt and oxygen (LaCoO3) has been a puzzle for over 50 years, due to its strange behavior. While most materials tend to lose magnetism at higher temperatures, pure LaCoO3 is a non-magnetic semiconductor at low temperatures, but as the temperature is...

New Type Of Nanoscavenger Could Bring Next Generation Water Purification
2013-05-16 09:11:58

Stanford University New synthetic nanoparticle could disinfect, depollute, and desalinate contaminated water and then get removed magnetically. Among its many talents, silver is an antibiotic. Titanium dioxide is known to glom on to certain heavy metals and pollutants. Other materials do the same for salt. In recent years, environmental engineers have sought to disinfect, depollute, and desalinate contaminated water using nanoscale particles of these active materials. Engineers call...

2013-05-09 11:59:48

Scientists find new magic in magnetic material From powerful computers to super-sensitive medical and environmental detectors that are faster, smaller and use less energy – yes, we want them, but how do we get them? In research that is helping to lay the groundwork for the electronics of the future, University of Delaware scientists have confirmed the presence of a magnetic field generated by electrons which scientists had theorized existed, but that had never been proven until...

2013-04-04 12:10:55

All-optical switching promises terahertz-speed hard drive and RAM memory Researchers at the U.S. Department of Energy´s Ames Laboratory, Iowa State University, and the University of Crete in Greece have found a new way to switch magnetism that is at least 1000 times faster than currently used in magnetic memory technologies. Magnetic switching is used to encode information in hard drives, magnetic random access memory and other computing devices. The discovery, reported in the April 4...

Latest Ferromagnetism Reference Libraries

2010-09-23 20:39:09

An electromagnet, a magnet whose magnetic field is produced by the flow of electric current, works until the electric current ceases. The magnetic field in a simple electromagnet is created by a wire passing through it with an electric current. The strength of the magnet depends on the amount of current. By making the wire into a coil the magnetic field is concentrated. A straight tube coil is a solenoid. A stronger magnetic field can be produced by putting a ferromagnetic material, such as...

More Articles (1 articles) »
Word of the Day
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.