{"id":1080,"date":"2009-01-09T00:21:15","date_gmt":"2009-01-09T05:21:15","guid":{"rendered":"http:\/\/arxivblog.com\/?p=1080"},"modified":"2009-01-08T18:30:54","modified_gmt":"2009-01-08T23:30:54","slug":"memristors-made-into-low-cost-high-density-rram-resistive-random-access-memory","status":"publish","type":"post","link":"http:\/\/arxivblog.com\/?p=1080","title":{"rendered":"Memristors made into low cost, high density RRAM (Resistive Random Access Memory)"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1081\" title=\"memristor-memory\" src=\"http:\/\/arxivblog.com\/wp-content\/uploads\/2009\/01\/memristor-memory.jpg\" alt=\"memristor-memory\" width=\"392\" height=\"311\" srcset=\"http:\/\/arxivblog.com\/wp-content\/uploads\/2009\/01\/memristor-memory.jpg 747w, http:\/\/arxivblog.com\/wp-content\/uploads\/2009\/01\/memristor-memory-300x238.jpg 300w\" sizes=\"auto, (max-width: 392px) 100vw, 392px\" \/><\/p>\n<p>The four passive components of electronics are the resistor, capacitor, inductor and the memristor, which was discovered only a few months ago.<\/p>\n<p>Memristors (from memory-resistors, geddit?) are resistors whose resistance depends on their past.\u00a0 In that sense they remember the past or, as an electronics engineer might put it,\u00a0 they store information.<\/p>\n<p>So new are memristors that nobody has had much time to think about what they might be useful for. That&#8217;s changing quickly.<\/p>\n<p>A couple of months back we saw how they could be used to make <a href=\"http:\/\/arxivblog.com\/?p=684\">neural nets that mimic the &#8220;intelligent&#8221; behaviour\u00a0 of slime mould<\/a>.<\/p>\n<p>Now Tom Driscoll and buddies at the University of California, San Diego have shown how memristors could work as low cost, high density memory.<\/p>\n<p><!--more-->It turns out that a thin film of vanadium oxide acts like a memrister when a current is passed through it. At a certain critical temperature, the current triggers a phase change in the film, turning it from an insulator to a metal-like conductor. And that significantly changes it&#8217;s resistance in a way that can be measured for hours afterwards. In effect, the resistor stores a singe bit of information.<\/p>\n<p>Driscoll calls it resistive random access memory or RRAM, in which information is stored in the form of material resistance, which can be changed by an applied voltage .<\/p>\n<p>Other substances, such as titanium oxide, also display similar memristive behaviour which could be adpated for memory related applications. And work is on going to characterise these.<\/p>\n<p>Expect to hear a lot more about them this year.<\/p>\n<p>Ref: <a href=\"http:\/\/arxiv.org\/abs\/0901.0899\">arxiv.org\/abs\/0901.0899<\/a>: Phase-Transition Driven Memristive System<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The four passive components of electronics are the resistor, capacitor, inductor and the memristor, which was discovered only a few months ago. Memristors (from memory-resistors, geddit?) are resistors whose resistance depends on their past.\u00a0 In that sense they remember the past or, as an electronics engineer might put it,\u00a0 they store information. So new are [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,5],"tags":[],"class_list":["post-1080","post","type-post","status-publish","format-standard","hentry","category-changin-the-world","category-secrets"],"_links":{"self":[{"href":"http:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1080","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1080"}],"version-history":[{"count":1,"href":"http:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1080\/revisions"}],"predecessor-version":[{"id":1082,"href":"http:\/\/arxivblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1080\/revisions\/1082"}],"wp:attachment":[{"href":"http:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1080"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/arxivblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}