Latest Ferromagnetism Stories
New multiferroic mechanism could lead to next-generation memory and sensing devices.
Just in time for the 100th anniversary to commemorate the discovery of superconductivity by the Dutch physicist Heike Kamerlingh Onnes on April 8, 1911, scientists from the Helmholtz-Zentrum Dresden-Rossendorf and the TU Dresden published their research results in the journal Physical Review B.
â€œThe nation that controls magnetism will control the universe,â€ famed fictional detective Dick Tracy predicted back in 1935.
Tomorrow's nonvolatile memory devices â€“ computer memory that can retain stored information even when not powered â€“ will profoundly change electronics, and Cornell University researchers have discovered a new way of measuring and optimizing their performance.
Scientists have given us a plethora of new materials â€“ all created by combining individual elements under varying temperatures and other conditions.
The results achieved by this research team headed by Prof. Kurt Westerholt and Prof. Hartmut Zabel (Department of Physics and Astronomy at RUB) could contribute to new, power saving components in the future.
For the first time scientists at Helmholtz-Zentrum Berlin have managed to create 3-dimensional images of these domains deep within magnetic materials.
Research is closing in on the next-generation of ultra-high-density magneto-optical storage devices that could store more than 6,000 Terabits (6 petabits) of data, more than 70 times the contents of the entire U.S. Library of Congress, on a single 5-inch disc.
Chinese scientists have shown that magnetic memory, logic and sensor cells can be made faster and more energy efficient by using an electric, not magnetic, field to flip the magnetization of the sensing layer only about halfway, rather than completely to the opposite direction.
Breakthrough paves way to store and process information in novel spin-electronics.
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...
- A political dynamiter.