Tag: ferromagnetism

Magnetic structure in a colossal magneto-resistive manganite is switched from antiferromagnetic to ferromagnetic ordering during about 100 femtosecond (10^-15 s) laser pulse photo-excitation. With time so short and the laser pulses still interacting with magnetic moments, the magnetic switching is driven quantum mechanically– not thermally. This potentially opens the door to terahertz (10^12 hertz) and faster memory writing/reading speeds.(credit: DOE Ames Laboratory)

Terahertz-speed RAM and hard drives now possible through all-optical switching

byTibi Puiu

April 4, 2013

Driven by technological demand to breach the gigahertz (10^9 hertz) switching speed limit of today’s magnetic memory and logic devices, a team of ...

Brilliant moving Christmas trees made with ferrofluids and electromagnetism [VIDEO]

byTibi Puiu

December 19, 2012 - Updated on December 21, 2023

The holidays are nigh, and if you haven't put out your Christmas tree just yet, maybe you'd like to consider something truly special. ...

Hints of superconductivity at room temperature might hold far-reaching consequences

byTibi Puiu

September 19, 2012

By doping graphite, researchers in Germany have reported that they found tantalizing hints of superconductivity at room-temperatures and far above, ...

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Tag: ferromagnetism

Terahertz-speed RAM and hard drives now possible through all-optical switching

Brilliant moving Christmas trees made with ferrofluids and electromagnetism [VIDEO]

Hints of superconductivity at room temperature might hold far-reaching consequences

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