Magnetic Spins that 'Freeze' tagged posts

Magnetic Spins that ‘Freeze’ when Heated: Nature in the wrong direction

Magnetische spins
At cooler temperatures, the spins in the material form random patterns, where each pattern whirls like a helix with a particular twist. When heating up the material, the spins choose one of the particular helix patterns, a phenomenon that normally occurs when the temperature decreases in magnetic materials.

Physicists observed a strange new type of behaviour in a magnetic material when it’s heated up. The magnetic spins ‘freeze’ into a static pattern when the temperature rises, a phenomenon that normally occurs when the temperature decreases. They publish their findings in Nature Physics on July 4th.

The researchers discovered the phenomenon in the material neodymium, an element that they described several years ago as a ‘self-induced spin glass’...

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