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Scientists accidentally discover a material that can ‘remember’ like a brain

The Independent 08/23/2022

"\u003Chtml\u003E\n \u003Chead\u003E\u003C\u002Fhead\u003E\n \u003Cbody\u003E\n \u003Cdiv\u003E\n \u003Cdiv\u003E\n \u003Cdiv\u003E \n \u003Cdiv\u003E \n \u003Cp\u003EThe Independent’s journalism is supported by our readers. When you purchase through links on our site, we may earn commission.\u003C\u002Fp\u003E \n \u003Cdiv\u003E \n \u003Ch2\u003E\u003Cp\u003EDiscovery could enhance capacity, speed and ultimately lead to the miniaturisation of electronics \u003C\u002Fp\u003E\u003C\u002Fh2\u003E \n \u003Cdiv\u003E \n \u003Cdiv\u003E \n \u003Cdiv\u003E \n \u003Cdiv\u003E \n \u003Ch4\u003EArticle bookmarked\u003C\u002Fh4\u003E \n \u003Cp\u003EFind your bookmarks in your \u003Ca href=\"http:\u002F\u002Fwww.independent.co.uk\u002Findependent-premium#bookmarks\"\u003EIndependent Premium\u003C\u002Fa\u003E section, under my profile\u003C\u002Fp\u003E \n \u003Cp\u003EDon't show me this message again\u003C\u002Fp\u003E ✕ \n \u003C\u002Fdiv\u003E \n \u003C\u002Fdiv\u003E \n \u003C\u002Fdiv\u003E \n \u003C\u002Fdiv\u003E \n \u003C\u002Fdiv\u003E \n \u003Cfigure\u003E\n \u003Cspan class=\"view-HD-pictures-wrap\"\u003E\n \u003Cimg class=\"view-HD-pictures\" data-src=\"https:\u002F\u002Fres.6chcdn.feednews.com\u002Fassets\u002Fv2\u002Fc7c9ae3c42f67d5940bd4188cd8472d3?source=nlp&quality=uhq&format=jpeg&resize=720\" alt=\"\u003Cp\u003E\n \u003Cspan class=\"view-HD-pictures\"\u003EView pictures in App save up to 80% data.\u003C\u002Fspan\u003E\n \u003C\u002Fspan\u003EResearchers discovered that vanadium dioxide (VO2) can ‘remember’ its entire history\u003C\u002Fp\u003E\" data-image-width=\"982\" data-image-height=\"726\"\u003E\n \u003Cfigcaption\u003E\n Researchers discovered that vanadium dioxide (VO2) can ‘remember’ its entire history\n \u003C\u002Ffigcaption\u003E\n \u003C\u002Ffigure\u003E \n \u003C\u002Fdiv\u003E \n \u003Cdiv\u003E \n \u003Cdiv\u003E \n \u003Cp\u003EScientists have discovered the first-ever physical material capable of “remembering” its entire history of physical stimuli, similar to that of a \u003Ca href=\"http:\u002F\u002Fwww.independent.co.uk\u002Ftopic\u002Fbrain\"\u003Ebrain\u003C\u002Fa\u003E.\u003C\u002Fp\u003E \n \u003Cp\u003EThe team from the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland stumbled upon the remarkable property while researching phase transitions of vanadium dioxide (VO2), a compound used in electronics.\u003C\u002Fp\u003E \n \u003Cp\u003EPhD student Mohammad Samizadeh Nikoo was attempting to figure out how long it takes for VO2\u003Csub\u003E \u003C\u002Fsub\u003Eto transition from one state to another, but soon realised that something never before seen was happening when an electric current was applied.\u003C\u002Fp\u003E \n \u003Cp\u003E“The current moved across the material, following a path until it exited on the other side,” Mr Samizadeh Nikoo said.\u003C\u002Fp\u003E \n \u003Cp\u003E“As the current heated up the sample, it caused the VO2 to change state. And once the current had passed, the material returned to its initial state.”\u003C\u002Fp\u003E \n \u003Cp\u003EAfter applying a second electrical current during the experiment, the researcher observed that the time taken for the material to change state appeared to be directly related to its history.\u003C\u002Fp\u003E \n \u003Cp\u003E“The VO2 seemed to ‘remember’ the first phase transition and anticipate the next,” said Professor Elison Matioli, who supervised the research. \u003C\u002Fp\u003E \n \u003Cp\u003E“We didn’t expect to see this kind of memory effect, and it has nothing to do with electronic states but rather with the physical structure of the material. It’s a novel discovery: no other material behaves in this way.”\u003C\u002Fp\u003E \n \u003Cp\u003EThe discovery could have major implications for advancements in electronics that rely on memory to perform calculations.\u003C\u002Fp\u003E \n \u003Cp\u003EBy having the memory effect be an innate property of the material itself, the researchers claim it could enhance the capacity, speed and, ultimately, the miniaturisation of electronics.\u003C\u002Fp\u003E \n \u003Cp\u003EA \u003Ca href=\"http:\u002F\u002Fgo.redirectingat.com\u002F?id=44681X1458326&url=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41928-022-00812-z&sref=https:\u002F\u002Fwww.independent.co.uk\u002Ftech\u002Fbrain-memory-material-vanadium-epfl-b2150641.html\"\u003Estudy\u003C\u002Fa\u003E detailing the research was published in the scientific journal \u003Cem\u003ENature Electronics\u003C\u002Fem\u003E.\u003C\u002Fp\u003E \n \u003C\u002Fdiv\u003E \n \u003Cdiv\u003E \n \u003Cdiv\u003E \n \u003Ch1\u003ERegister for free to continue reading\u003C\u002Fh1\u003E \n \u003C\u002Fdiv\u003E \n \u003Cdiv\u003E \n \u003Cp\u003ERegistration is a free and easy way to support our truly independent journalism\u003C\u002Fp\u003E \n \u003Cp\u003EBy registering, you will also enjoy limited access to Premium articles, exclusive newsletters, commenting, and virtual events with our leading journalists\u003C\u002Fp\u003E \n \u003C\u002Fdiv\u003E \n \u003Cp\u003EAlready have an account? sign in\u003C\u002Fp\u003E \n \u003C\u002Fdiv\u003E \n \u003Cdiv\u003E \n \u003Cdiv\u003E \n \u003Ch1\u003ERegister for free to continue reading\u003C\u002Fh1\u003E \n \u003C\u002Fdiv\u003E \n \u003Cdiv\u003E \n \u003Cp\u003ERegistration is a free and easy way to support our truly independent journalism\u003C\u002Fp\u003E \n \u003Cp\u003EBy registering, you will also enjoy limited access to Premium articles, exclusive newsletters, commenting, and virtual events with our leading journalists\u003C\u002Fp\u003E \n \u003C\u002Fdiv\u003E \n \u003Cp\u003EAlready have an account? sign in\u003C\u002Fp\u003E \n \u003C\u002Fdiv\u003E\n \u003C\u002Fdiv\u003E \n \u003C\u002Fdiv\u003E\n \u003C\u002Fdiv\u003E\n \u003C\u002Fdiv\u003E\n \u003C\u002Fbody\u003E\n\u003C\u002Fhtml\u003E"

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