A disk's surface is divided into concentric tracks (circles within circles), and the thinner the tracks, the more storage. The data bits are recorded as magnetic spots on the tracks in one ...

This means that their magnetism is there all the time and cannot be turned on or off as it can with an electromagnet. Converting a magnet to a non-magnet is called demagnetisation. Magnets are ...

Two researchers who independently developed the neodymium magnet — used in everything from hard disk drives to automobiles ... to other strong magnetic fields,” explains Sagawa.

One thing we’d suggest is switching from a disc to a cylinder with magnets placed in a Halbach array to direct as much of the magnetic field into the interior as possible, with coils of copper ...

sustained the strongest magnetic field using a resistive magnet, at 42.02 tesla. This surpasses the previous record, which was set by the U.S. National High Magnetic Laboratory back in 2017.

Magnetic tape and disks were developed in the ... but they all gave way to USB storage (see USB drive). See optical disc. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires ...

An application note from an IEEE Magazine shows that STT-MRAM memories should be able to achieve high densities with simple precautions in normal ambient magnetic fields.

The new magnet is capable of creating a magnetic field of 42.02 tesla, which is more than 800,000 times stronger than the Earth’s and beats the 41.4 tesla record set by the US National Magnetic ...