Latest Ferromagnetism Stories

2013-01-28 14:49:13

For purposes of their research, the scientists irradiated two separate layered systems with ultrashort laser pulses on the order of just one hundred femtoseconds (10-15 s). One sample consisted essentially of a single thin layer of ferromagnetic nickel. By contrast, a second sample of this same nickel material was coated with a non-magnetic layer of gold. Only a mere 30 nanometers (10-9 m) thick, the gold layer swallowed up the lion's share of the laser light so that barely any light ended up...

Mystery Of Barkhausen Noise Finally Cracked
2013-01-24 11:04:12

Watch the video "Torsional Magnetic Science" April Flowers for redOrbit.com - Your Universe Online Thanks to new nanotechnology tools and the tenacity of star physics students, a University of Alberta research team has cracked the code to a magnetic mystery scientists have been trying to solve for over 100 years. The team, led by U of A professor and National Institute for Nanotechnology (NINT) researcher Mark Freeman, made the breakthrough with a new kind of high-resolution...

Quantum Spin Liquid Is A New State Of Magnetism
2012-12-21 09:38:33

redOrbit Staff & Wire Reports - Your Universe Online While experts had previously only confirmed the existence of two states of magnetism, experts from the Massachusetts Institute of Technology (MIT) report that they have been able to experimentally demonstrate the existence of a third kind. The MIT researchers have dubbed the new state a quantum spin liquid (QSL), and they describe their findings in this week's edition of the journal Nature. It joins ferromagnetism (the simple form...

Earth's Magnetic Field And Maori Stones
2012-12-09 06:12:00

April Flowers for redOrbit.com - Your Universe Online The Maori of New Zealand have been cooking in earth ovens, called hangi or umu, since at least the 1200s. These ovens are fire pits, scooped out of the ground. A fire is built and large volcanic stones are laid over the fire. When the fire burns down, the food is wrapped in leaves, placed in baskets and laid on the rocks with wet fern fronds. A layer of earth is scraped over the food, sealing in the heat and steam. The stones inside...

The Road To Spintronics Advances
2012-10-15 13:23:39

Spintronic technology, in which data is processed on the basis of electron “spin” rather than charge, promises to revolutionize the computing industry with smaller, faster and more energy efficient data storage and processing. Materials drawing a lot of attention for spintronic applications are dilute magnetic semiconductors — normal semiconductors to which a small amount of magnetic atoms is added to make them ferromagnetic. Understanding the source of ferromagnetism in...

New Experience In Nanodisk Magnetic Vortices
2012-08-08 13:06:06

Berkeley Lab Researchers Take a Mesocale Look at Magnetic Vortex Formations The phenomenon in ferromagnetic nanodisks of magnetic vortices — hurricanes of magnetism only a few atoms across — has generated intense interest in the high-tech community because of the potential application of these vortices in non-volatile Random Access Memory (RAM) data storage systems. New findings from scientists at the U.S. Department of Energy (DOE)´s Lawrence Berkeley National Laboratory...

2012-07-09 10:14:07

Successful imaging of individual atoms and associated electric fields in ferroelectrics could lead the way to a new era of advanced electronics As scientists learn to manipulate little-understood nanoscale materials, they are laying the foundation for a future of more compact, efficient, and innovative devices. In research to be published online July 8 in the journal Nature Materials, scientists at the U.S. Department of Energy's Brookhaven National Laboratory, Lawrence Berkeley National...

2012-03-30 12:53:15

Imperial scientists take an important step in developing a material using nano-sized magnets that could lead to new electronic devices Scientists have taken an important step forward in developing a new material using nano-sized magnets that could ultimately lead to new types of electronic devices, with greater processing capacity than is currently feasible, in a study published today in the journal Science. Many modern data storage devices, like hard disk drives, rely on the ability to...

2012-03-08 21:22:47

Nature Communications: New development for fast storage media An international team of researchers from Germany and the Netherlands has developed a new material for storage media. For the first time they enable the switching of so called spin currents at room temperature in a vertical magnetic field. This increases the storage density distinctly. The novel switches can be used, for example, as read heads in future hard discs or as bits in non-volatile random access memory devices (MRAM)....

2012-03-07 15:56:19

Helmholtz-Zentrum Berlin developed a magnetic valve that novel electronic devices can be realistic In close collaboration with colleagues from Bochum and the Netherlands, researchers from the Helmholtz-Zentrum Berlin (HZB) have developed a novel, extremely-thin structure made of various magnetic materials. It is suitable as a kind of magnetic valve for data-storage units of the most recent generation and makes use of effects in the context of so-called spintronics, with which, in addition...

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...

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Word of the Day
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).