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2. Neodymium magnet - Wikipedia

   en.wikipedia.org/wiki/Neodymium_magnet

   A Nickel-plated neodymium magnet on a bracket from a hard disk drive Nickel-plated neodymium magnet cubes Left: high-resolution transmission electron microscopy image of Nd 2 Fe 14 B; right: crystal structure with unit cell marked Inventor Masato Sagawa demonstrating a NdFeB magnet's force with 2 kg bottle. A neodymium magnet (also known as ...

3. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

4. Hard disk drive platter - Wikipedia

   en.wikipedia.org/wiki/Hard_disk_drive_platter

   A typical magnetic region on a hard-disk platter (as of 2006) is about 200–250 nanometers wide (in the radial direction of the platter) and extends about 25–30 nanometers in the down-track direction (the circumferential direction on the platter), [citation needed] corresponding to about 100 billion bits per square inch of disk area (15.5 ...

5. Magnetic-tape data storage - Wikipedia

   en.wikipedia.org/wiki/Magnetic-tape_data_storage

   10 + 1 ⁄ 2-inch (270 mm) diameter reel of 9-track tape. IBM computers from the 1950s used ferric-oxide-coated tape similar to that used in audio recording. IBM's technology soon became the de facto industry standard. Magnetic tape dimensions were 0.5-inch (12.7 mm) wide and wound on removable reels.

6. 9-track tape - Wikipedia

   en.wikipedia.org/wiki/9-track_tape

   9-track tape is a format for magnetic-tape data storage, introduced with the IBM System/360 in 1964. The 1 ⁄ 2 inch (12.7 mm) wide magnetic tape media and reels have the same size as the earlier IBM 7-track format it replaced, but the new format has eight data tracks and one parity track for a total of nine

7. Magnetic 2D materials - Wikipedia

   en.wikipedia.org/wiki/Magnetic_2D_materials

   Magnetic materials have their aligned over a macroscopic length scale.Alignment of the spins is typically driven by exchange interaction between neighboring spins. . While at absolute zero (=) the alignment can always exist, thermal fluctuations misalign magnetic moments at temperatures above the Curie temperature (), causing a phase transition to a non-magnetic