For about ten years, magnetic skyrmions—particle-like, stable magnetic whirls that can form in certain materials and possess fascinating properties—have been a focus of research: easy to control electrically and only ...
Nanophysics
Oct 5, 2022
0
31
Society's increasing use of electronic devices motivates the search for new and better data storage techniques. Magnetic storage devices, such as hard disk drives, have been the mainstays for data storage over the past few ...
Condensed Matter
Sep 28, 2022
0
23
Translation of information from one state into another is key to our society. The general purpose of this information transfer is making information accessible, easier to process and to store.
General Physics
Sep 13, 2022
0
125
Sometimes making a brand-new type of box requires outside-the-box thinking, which is exactly what Spartan chemists used to create an eight-atom, magnetic cube.
Materials Science
Apr 13, 2022
1
109
One of the most important tasks in modern information technologies is controlling spin directions in magnets. State-of-the-art hard disk drives and large-volume magnetic storage used in data centers require magnetization ...
Optics & Photonics
Sep 1, 2021
0
222
Graphene can be used for ultra-high density hard disk drives (HDD), with up to a tenfold jump compared to current technologies, researchers at the Cambridge Graphene Center have shown.
Nanophysics
Jun 7, 2021
0
5557
Scientists have taken a step towards the creation of powerful devices that harness magnetic charge by creating the first ever three-dimensional replica of a material known as a spin-ice.
Nanophysics
May 28, 2021
0
1472
Researchers at Toshiba Corporation in Japan have studied the operation of a small device fabricated in the write gap of a hard disk drive's write head to extend its recording density. The device, developed by HWY Technologies, ...
General Physics
Mar 9, 2021
0
41
The total amount of data generated worldwide is expected to reach 175 zettabytes (1 ZB equals 1 billion terabytes) by 2025. If 175 ZB were stored on Blu-ray disks, the stack would be 23 times the distance to the moon. There ...
Nanophysics
Feb 26, 2021
0
4406
Turing machines were first proposed by British mathematician Alan Turing in 1936, and are a theoretical mathematical model of what it means for a system to "be a computer."
General Physics
Aug 27, 2020
5
665
A hard disk drive (often shortened as "hard disk", "hard drive", or "HDD"), is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. Strictly speaking, "drive" refers to a device distinct from its medium, such as a tape drive and its tape, or a floppy disk drive and its floppy disk. Early HDDs had removable media; however, an HDD today is typically a sealed unit (except for a filtered vent hole to equalize air pressure) with fixed media.
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