{"id":5748,"date":"2013-12-17T19:28:59","date_gmt":"2013-12-17T19:28:59","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=5748"},"modified":"2013-12-17T19:28:59","modified_gmt":"2013-12-17T19:28:59","slug":"sci-tech-electronics-with-lossless-conductors-at-room-temperature","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=5748","title":{"rendered":"Sci-Tech: Electronics with lossless conductors at room temperature"},"content":{"rendered":"<p>Not exactly room temperature superconductors but this DARPA supported theoretical research will be amazing if it works out \u00a0in real world \u00a0experiments:<\/p>\n<p style=\"text-align: center;\"><strong><a href=\"http:\/\/www.darpa.mil\/NewsEvents\/Releases\/2013\/12\/17.aspx\" target=\"_d\">Theorists Predict New State of Quantum Matter May Have Big Impact on Electronics<br \/>\n<\/a><\/strong><i>Experiments underway to validate topologically insulating stanene as first room temperature lossless conductor<\/i><\/p>\n<p>Constantly losing energy is something we deal with in everything we do. If you stop pedaling a bike, it gradually slows; if you let off the gas, your car also slows. As these vehicles move, they also generate heat from friction. Electronics encounter a similar effect as groups of electrons carry information from one point to another. As electrons move, they dissipate heat, reducing the distance a signal can travel. DARPA-sponsored researchers under the\u00a0<a href=\"http:\/\/www.darpa.mil\/Our_Work\/MTO\/Programs\/Mesodynamic_Architectures_%28Meso%29.aspx\">Mesodynamic Architectures (Meso) program<\/a>, however, may have found a potential way around this fundamental problem.<\/p>\n<p>Meso program researchers at Stanford University recently predicted stanene will support lossless conduction at room temperature. Stanene is the name given by the researchers to 2-D sheets of tin that are only 1-atom thick. In a paper appearing in\u00a0<a title=\"Physical Review Letters\" href=\"http:\/\/www.darpa.mil\/External_Link.aspx?url=http:\/\/prl.aps.org\/abstract\/PRL\/v111\/i13\/e136804\" target=\"_blank\"><i>Physical Review Letters<\/i><\/a>\u00a0the team predicts stanene would be the first topological insulator to demonstrate zero heat dissipation properties at room temperature, conducting charges around its edges without any loss. Experiments are underway to create the material in laboratory conditions. If successful, the team will use stanene to enhance devices they are building under the Meso program.<\/p>\n<p>\u201cWe recently realized there is another state of electronic matter: a topological insulator. Materials in a topologically insulating state are like paying for the gasoline to accelerate your car to highway speeds, but then cruising as far as you want on that highway without using up any more gas,\u201d said\u00a0<a href=\"http:\/\/www.darpa.mil\/Our_Work\/MTO\/Personnel\/Dr__Jeffrey_Rogers.aspx\">Jeffrey Rogers<\/a>, DARPA program manager. \u201cExperiments should tell us what penalty electrons would pay for connecting to stanene in a practical application. However, the physics of stanene point to zero dissipation of heat\u2014meaning electrons take an entropy hit once and then travel unimpeded the rest of the distance.\u201d<\/p>\n<p>Researchers at Stanford reported the first topological insulators in 2006 under a previous DARPA effort known as the Focus Center Research Program. The current Meso program developed the theory for stanene as part of research into more efficient ways to move information inside microchips. Other materials\u2019 capabilities have come close, but only at temperatures that require extreme sub-zero temperatures created with bulky methods such as liquid helium.<\/p>\n<p>\u201cStanene is a bold, yet compelling prediction,\u201d said Rogers. \u201cIf the experiments underway confirm the theory, the application of a new lossless conductor becomes a very exciting prospect in the world of electronics. A host of applications\u2014almost any time information is moved electronically from one place to another\u2014could benefit.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Not exactly room temperature superconductors but this DARPA supported theoretical research will be amazing if it works out \u00a0in real world \u00a0experiments: Theorists Predict New State of Quantum Matter May Have Big Impact on Electronics Experiments underway to validate topologically insulating stanene as first room temperature lossless conductor Constantly losing energy is something we deal &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=5748\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Sci-Tech: Electronics with lossless conductors at room temperature<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-5748","post","type-post","status-publish","format-standard","hentry","category-science-and-technology"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-1uI","jetpack-related-posts":[{"id":9546,"url":"https:\/\/hobbyspace.com\/Blog\/?p=9546","url_meta":{"origin":5748,"position":0},"title":"Sci-Tech: Focus fusion project update from LPPFusion, Inc.","author":"TopSpacer","date":"December 30, 2014","format":false,"excerpt":"LPPFusion, Inc., formerly\u00a0Lawrenceville Plasma Physics, Inc, offers some\u00a0updates on recent developments in their focus fusion program: *\u00a0Tungsten Cathode Nears Completion after Long Delays The long-awaited tungsten cathode is finally nearing completion in a Chinese factory.\u00a0 According to the latest reports by California-based Tungsten Heavy Powder(THP), which is performing the work\u2026","rel":"","context":"In &quot;Science and Technology&quot;","block_context":{"text":"Science and Technology","link":"https:\/\/hobbyspace.com\/Blog\/?cat=9"},"img":{"alt_text":"samllerelectrode-270x318[1]","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2014\/12\/samllerelectrode-270x3181.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":6943,"url":"https:\/\/hobbyspace.com\/Blog\/?p=6943","url_meta":{"origin":5748,"position":1},"title":"Evidence for gravitational waves in the early universe","author":"TopSpacer","date":"March 17, 2014","format":false,"excerpt":"The\u00a0BICEP2 South Pole\u00a0experiment today announced evidence of gravitational waves in the very early universe. 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