The first iPod was released with several tens of GB of storage, which at that point of time, could not be achieved by the semiconductor based. Title, How Spintronics Went from the Lab to the iPod. Publication Type, Journal Article. Year of Publication, Authors, McCray, P. W.. Journal, Nature. Download Citation on ResearchGate | From Lab to iPod: A Story of Discovery GMR also helped catalyze a new field of research known as “spintronics” and.
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In theory, more information could be crammed onto hard disks by shrinking the size of the magnetic areas where individual bits of data are stored in the form of 1s and 0s. When you use a computer or an MP3 player, you’re reaping the benefits of the scientific breakthrough two decades ago that yesterday brought the Nobel Prize in Physics to two European scientists.
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The GMR wrnt takes advantage of a quantum characteristic of electrons that scientists call “spin” even though the electrons are not actually spinning like little tops. By Peter Calamai Science Reporter. To order copies of Toronto Star articles, please go to: Asked if he’d thought his discovery would have such wide application, Fert told The Associated Press, “You can never predict in physics.
By alternating ultra-thin layers of magnetic and non-magnetic material, Fert and Gruenberg produced giant magnetoresistance which greatly hwo this weak electrical signal. The prizes, with the exception of economics, were established in the will of Swedish industrialist Alfred Nobel and are presented spihtronics the winners on Dec. Copyright owned or licensed by Toronto Star Newspapers Limited.
A researcher in this field of “spintronics,” Queen’s University physics professor Jim Stotz, said GMR was a scientific breakthrough because it used an electron’s spin for something practical, as opposed to simply research curiosity.
How spintronics went from the lab to the iPod
spinteonics By manipulating the “spin” of electrons, scientists hope to come up with even more breakthroughs such as a new kind of random access memory for computers that’s blindingly fast but doesn’t die when the power is switched off, as conventional RAM now does. Their exotic lab technique was quickly simplified into a mass production process and the first disk-reading device based on GMR appeared on the market in But smaller areas produce weaker shifts in magnetism, meaning the tell-tale changes in electrical resistance become too faint to be detected by conventional technology.
Sspintronics year-old Fert, however, quickly published his findings and so was unable to get a patent. The underlying principle is called giant magnetoresistance GMR and experts agree that its discovery by the two researchers in fuelled the subsequent explosion of information technology, especially the continuing miniaturization rhe hard drives in iPods and laptops.
How spintronics went from the lab to the iPod.
A professor at the Institute of Solid State Research in the city of Juelich in western Germany, Gruenberg benefited financially from the GMR discovery by getting a patent before publishing his results in the scientific literature. Instead, “spin” spintrlnics each electron acts like a miniature magnet pointing either up or down.
Gruenberg, 68, spent to in Canada in the chemistry department of Ottawa’s Thhe University as a post-doctoral fellow sponsored by the National Research Council.
Canadian physicist Bret Heinrich, a long-time friend of both laureates, said their discovery demonstrated yet again that research sparked by scientific curiosity can produce breakthroughs in technology.
Nobel prizes for chemistry, literature, peace and economics will be announced today through Lwb. This copy is for your personal non-commercial use only.