<div dir="ltr"><font size="4">No offense t the journalist -- but the person we want is a Prof in EECS</font><div><font size="4">today he just got a major promotion at MIT</font></div><div><br></div><div><div id="gmail-block-mit-page-title" style="color:rgb(5,5,5);font-family:MessinaSans,sans-serif;font-size:18px"><div class="gmail-block-inner"><h1 style="font-size:39px;margin:0px 0px 7px;line-height:1.05;letter-spacing:-0.035em;color:rgb(51,51,51);width:884.391px">Tomás Palacios named new director of the Microsystems Technology Laboratories</h1></div></div><div id="gmail-block-mit-content" style="font-size:20px;color:rgb(5,5,5);font-family:MessinaSans,sans-serif"><div class="gmail-block-inner"><div><div class="gmail-news-article--dek" style="font-size:24px;font-weight:600;margin-bottom:20px;width:884.391px;color:rgb(51,51,51)">Palacios has served as director of the 6-A MEng Thesis Program, industry officer, and professor of electrical engineering.</div><div class="gmail-news-article--indicators"></div><div class="gmail-news-article--authored-by" style="margin:0px 0px 5px;font-weight:700;width:884.391px;font-size:18px;color:rgb(51,51,51)"><span class="gmail-news-article--author">Jane Halpern</span> <span class="gmail-news-article--authored-by--separator" style="font-weight:300;color:rgb(62,62,62)">|</span> <span class="gmail-news-article--author">Meghan Melvin</span> <span class="gmail-news-article--authored-by--separator" style="font-weight:300;color:rgb(62,62,62)">|</span> <span class="gmail-news-article--source">Department of Electrical Engineering and Computer Science</span> <span class="gmail-news-article--authored-by--separator" style="font-weight:300;color:rgb(62,62,62)">|</span> <span class="gmail-news-article--source">Microsystems Technology Laboratories</span></div><div class="gmail-news-article--publication-date" style="margin:4px 0px 30px;font-weight:700;width:884.391px;font-size:18px;color:rgb(51,51,51)"><div class="gmail-visually-hidden" style="border:0px;height:1px;overflow:hidden;padding:0px;width:1px;white-space:nowrap;color:rgb(5,5,5)"><span class="gmail-label">Publication Date</span><span class="gmail-visually-hidden" style="border:0px;height:1px;overflow:hidden;padding:0px;width:1px">:</span></div>December 15, 2022</div></div><div class="gmail-news-article--publication-date" style="margin:4px 0px 30px;font-weight:700;width:884.391px;font-size:18px;color:rgb(51,51,51)"><br></div><div class="gmail-news-article--publication-date" style="margin:4px 0px 30px;font-weight:700;width:884.391px;font-size:18px;color:rgb(51,51,51)">here's the announcement for a talk he gave a couple of years ago in Germany</div><div class="gmail-news-article--publication-date" style="margin:4px 0px 30px;font-weight:700;width:884.391px;font-size:18px;color:rgb(51,51,51)"><div class="entry-meta" style="box-sizing:inherit;color:rgb(118,118,118);font-size:0.6875rem;font-weight:800;letter-spacing:0.1818em;padding-bottom:0.25em;text-transform:uppercase"><span class="gmail-posted-on" style="box-sizing:inherit"><a href="http://www.graphene.ac/index.php/2020/01/13/the-graphene-revolution-from-transistors-to-synthetic-cells-a-talk-by-prof-tomas-palacios-mit/" rel="bookmark" style="box-sizing:inherit;background-color:transparent;color:rgb(118,118,118);text-decoration-line:none">13. JANUARY 2020</a></span><span class="gmail-byline" style="box-sizing:inherit;display:inline"> BY <span class="gmail-author gmail-vcard" style="box-sizing:inherit"><a class="gmail-url gmail-fn gmail-n" href="http://www.graphene.ac/index.php/author/haupt/" style="box-sizing:inherit;background-color:transparent;color:rgb(118,118,118);text-decoration-line:none">FEDERICA HAUPT</a></span></span></div><h1 class="entry-title" style="box-sizing:inherit;font-size:1.625rem;margin:0px 0px 0.25em;clear:both;line-height:1.4;padding:0px;font-weight:300">The Graphene Revolution: From Transistors to Synthetic Cells – A talk by Prof. Tomás Palacios (MIT)</h1><div class="entry-content" style="box-sizing:inherit;margin-left:auto;margin-right:auto;font-family:"Libre Franklin","Helvetica Neue",helvetica,arial,sans-serif;font-size:16px;font-weight:400"><p style="box-sizing:inherit;margin:0px 0px 1.5em;padding:0px">On January 16, 2020, the Aachen Graphene & 2D Materials center will host a seminar by Prof. Tomás Palacios, with the title “The Graphene Revolution: From Transistors to Synthetic Cells”.</p><span id="gmail-more-788" style="box-sizing:inherit"></span><p style="box-sizing:inherit;margin:0px 0px 1.5em;padding:0px">Palacios is Professor of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology (MIT), as well as the founder and director of the MIT MTL Center for Graphene Devices and 2D Systems, and Chief Advisor and co-founder of Cambridge Electronics, Inc. His research interests include the design, processing and characterization of new electronic devices based on wide bandgap semiconductors and on two-dimensional materials such as graphene, molybdenum disulfide (MoS2) and tungsten diselenide (WSe2). His work has been recognized with multiple awards, including the Presidential Early Career Award for Scientists and Engineers, the IEEE George Smith Award, and the NSF, ONR, and the DARPA Young Faculty Awards.</p><p style="box-sizing:inherit;margin:0px 0px 1.5em;padding:0px">In his talk, Palacios will review some of the recent progress on the use of graphene and other two-dimensional materials for ultra-low power CMOS circuits, sensors and large area devices for energy harvesting. He will also present a new generation of micro-systems that probe the limits of electronics.</p></div></div></div></div><div><font size="4">The other Prof deeply involved in Graphene particularly the so-called "Magic Angle" layering of two Graphene Sheets is another young Spaniard at MIT, </font><span style="font-size:large">Pablo Jarillo-Herrero, </span><span style="font-size:large">Cecil and Ida Green Professor of Physics</span></div><div><font size="4">Best known for his groundbreaking research on twistronics.</font><br></div><div><font size="4">and leader of the Jarillo-Herrero Group and Quantum Nanoelectronics @ MIT</font></div><div><br></div><div>recently Pablo Jarillo-Herrero received the Wolf Prize Laureate in Physics 2020 along with two of his "partners in the field"<br><br>The 2020 wolf prize in Physics is awarded to: Pablo Jarillo-Herrero, Allan H. MacDonald and Rafi Bistritzer.<br><br></div><div>Prof. Pablo Jarillo-Herrero<br>Massachusetts Institute of Technology – USA<br>“For pioneering theoretical and experimental work on twisted bilayer graphene.”<br><br>Since the 2004 groundbreaking experiments regarding the two-dimensional material -graphene, several research groups were soon studying the properties of twisted bilayer graphene. Graphene is a significant foundation for an entirely new generation of technologies. The hope is that graphene-based applications will benefit the environment and reduce costs. Electronic and computer industry requires materials whose conductance can be controlled.<br><br>The work of Jarillo-Herrero, MacDonald and Bistrizer has shown that the conductance properties of graphene interfaces can be controlled via the spatial misfit angle between the layers and then at certain angles the electrons exhibit surprising physical behavior. This physical discovery has the potential of leading to an energy revolution.<br><br>In 2011, a group led by Allan Macdonald, a theoretical physicist from the University of Texas, researched an intriguing behavior of twisted bilayer graphene, where the atomic lattices of two stacked graphene layers are laterally rotated with respect to each other by a small misfit angle. According to the calculations of MacDonald and Bistrizer (who did his post-doctoral thesis under the supervision of MacDonald at that time), the tunneling velocity of electrons between the layers depends on the misfit angle and completely vanishes at the “magic angle” of 1.1 degrees. It was hoped that this discovery would lead to the creation of a new type of super-conductor, namely a material that allows electrical current to pass with no impedance and with no energy loss.</div><div><br>The original paper by MacDonald and Bistrizer, which describes their discovery, was not received with enthusiasm by the scientific community and was even forgotten for several years.</div><div><br>At the same time, Jarillo-Herrero was working on twisted bilayer graphene in his lab at MIT. He became convinced that the ideas expressed by Macdonald and Bistrizer had substance.<br>His research team therefore invested considerable efforts in creating and measuring twisted bilayer graphene of various twist angles. The experiments proved successful in 2017 when it was found that positioning the layers at an angle of 1.1 degrees relative to one another (“the magic angle”) resulted in unusual electrical properties, precisely as MacDonald and Bistrizer have suggested. In this position, at sufficiently low temperatures, the electrons move from one layer to the other, creating a lattice with unusual qualities. The paper that described the phenomenon, which was published in Nature in 2018, revolutionized physics and triggered a flood of additional papers.</div><div><br>The discovery opens the door to building a super-conductor from bilayer graphene, in which electron movement is completely controlled by external electrical current.<br><br>This electrical behavior resembles the behavior of copper-based superconductors called Cuprates. Cuprates demonstrate electrical conductivity with no resistance in relatively high temperatures compared with other super-conductors. For this reason, Cuprates now form a source of hope for realizing the dream of electrical conductivity with no energy loss at temperatures close to room temperature. If this mission is achieved, it would lead to a far-reaching energy revolution. However, one obstacle that prevents this revolution is that we do not yet have a theory that explains the behavior of superconductors at high temperatures. In the absence of a solid theoretical foundation, it is difficult to develop new, better materials. This is one of the reasons for the excitement around the discovery of bilayer graphene and the magic angle, which allows us to understand better what happens on the microscopic level when transitioning from a conductor to a superconductor state.<br><br>Pablo Jarillo-Herrero (1976, Valencia) is an experimental condensed matter physicist who works on quantum electronic transport and optoelectronics in novel two-dimensional materials. His lab investigates their superconducting, magnetic, and topological properties. Jarillo-Herrero joined MIT in 2008 and was promoted to full professor in 2018. He received his ”licenciatura” in physics from the University of Valencia in Spain, in 1999; a master of science degree from the University of California at San Diego in 2001; and his PhD from the Delft University of Technology in the Netherlands, in 2005.<br></div><div><br></div><div><br></div><div><font size="4">Pablo Jarillo-Herrero could be on track for a Nobel Prize based on his work with multiple layers of Graphene and other 2-D materials</font></div><div> see for example</div><div><br></div><div><a href="https://www.youtube.com/watch?v=O2HVCjhuJlE">https://www.youtube.com/watch?v=O2HVCjhuJlE</a><br></div><div>Mar 14, 2018<br></div><div>Pablo Jarillo-Herrero (MIT) presents his surprising discovery of an ultrathin material consisting of two misaligned sheets of graphene that can be easily converted from being a Mott insulator to a superconductor at the APS March Meeting 2018 in Los Angeles, CA.<br>-------------------------------------------------<br>Magic-Angle Graphene Superlattices: a New Platform for Strongly Correlated Physics<br>APS Physics<br><br>27,041 views <br><br>-------------------------------------------------<br><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">In this talk I will discuss a new platform for strongly correlated physics based on magic-angle graphene superlattices. In particular, I will show that when two graphene sheets are twisted by an angle close to the theoretically predicted ‘magic angle’, the resulting flat band structure near the Dirac point gives rise to a strongly-correlated electronic system. These flat bands exhibit half-filling insulating phases at zero magnetic field, which we show to be a Mott-like insulator arising from electrons localized in the moiré superlattice. Doping away from the Mott-like state, we achieve electrically tunable superconductivity, with many characteristics similar to cuprate superconductivity, including superconducting domes, small Fermi pockets, and strong coupling.</blockquote></div><div><br></div><div><div class="gmail-c-article-header" style="margin:0px 0px 40px;padding:0px;box-sizing:inherit"><div class="gmail-c-article-header__restrict" style="margin:0px;padding:0px;box-sizing:inherit;width:751.292px"><ul class="gmail-c-article-identifiers" style="font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;font-size:1rem;margin:0px 0px 8px;box-sizing:inherit;color:rgb(111,111,111);display:flex;line-height:1.3;list-style:none;padding:0px"><li class="gmail-c-article-identifiers__item" style="box-sizing:inherit;border-right:1px solid rgb(111,111,111);list-style:none;margin-right:8px;padding-right:8px">or the Nature</li><li class="gmail-c-article-identifiers__item" style="box-sizing:inherit;border-right:1px solid rgb(111,111,111);list-style:none;margin-right:8px;padding-right:8px">NEWS FEATURE</li><li class="gmail-c-article-identifiers__item" style="box-sizing:inherit;border-right:1px solid rgb(111,111,111);list-style:none;margin-right:8px;padding-right:8px"><span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large">02 January 2019</span><br style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large"><b style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large">How ‘magic angle’ graphene is stirring up physics</b><br style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large"><span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large">Misaligned stacks of the wonder material exhibit superconductivity and other curious properties.</span><br style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large"><span style="color:rgb(34,34,34);font-family:Arial,Helvetica,sans-serif;font-size:large"><a href="https://www.nature.com/articles/d41586-018-07848-2">https://www.nature.com/articles/d41586-018-07848-2</a></span><br></li></ul></div><div class="gmail-c-article-author-list-container gmail-u-clearfix" style="font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;font-size:18px;margin:0px;padding:5px 0px;box-sizing:inherit"><ul class="gmail-c-article-author-list gmail-c-article-author-list--short gmail-js-no-scroll" style="margin:0px 8px 0px 0px;box-sizing:inherit;display:inline;font-size:1rem;list-style:none;padding:0px;width:100%"><li class="gmail-c-article-author-list__item" style="box-sizing:inherit;display:inline;padding-right:0px"><a href="https://www.nature.com/articles/d41586-018-07848-2#author-0" style="background-color:transparent;color:rgb(0,102,153);vertical-align:baseline;word-break:break-word;box-sizing:inherit">Elizabeth Gibney</a></li></ul></div></div><div class="gmail-js-context-bar-sticky-point-mobile" style="margin:0px;padding:0px;box-sizing:inherit;font-family:Harding,Palatino,serif;font-size:18px"></div><div class="gmail-c-article-body gmail-main-content" style="margin:0px;padding:0px;box-sizing:inherit;font-family:Harding,Palatino,serif"><span class="embed gmail-intensity--high" style="box-sizing:inherit;margin:0px 0px 47px"><img class="gmail-figure__image" alt="Pablo Jarillo-Herrero, professor of physics, holding materials in his lab at MIT" src="https://media.nature.com/lw767/magazine-assets/d41586-018-07848-2/d41586-018-07848-2_16349614.jpg" style="border: 0px; vertical-align: middle; box-sizing: inherit; display: block; margin: 0px 0px 0px auto;" width="224" height="149"><span class="gmail-mr10" style="color:rgb(102,102,102);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;font-size:1rem;box-sizing:inherit;margin-right:10px">Overlapping two sheets of graphene shows a characteristic pattern.</span><span style="color:rgb(102,102,102);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;font-size:1rem;box-sizing:inherit">Credit: Juliette Halsey for <i style="box-sizing:inherit">Nature</i></span></span><p style="font-size:18px;padding:0px;margin:0px 0px 28px;word-break:break-word;box-sizing:inherit">It was the closest that physicist Pablo Jarillo-Herrero had ever come to being a rock star. When he stood up in March to give a talk in Los Angeles, California, he saw scientists packed into every nook of the meeting room. The organizers of the American Physical Society conference had to stream the session to a huge adjacent space, where a standing-room-only crowd had gathered. “I knew we had something very important,” he says, “but that was pretty crazy.”</p><p style="font-size:18px;padding:0px;margin:0px 0px 28px;word-break:break-word;box-sizing:inherit">The throngs of physicists had come to hear how Jarillo-Herrero’s team at the Massachusetts Institute of Technology (MIT) in Cambridge had unearthed exotic behaviour in single-atom-thick layers of carbon, known as graphene. Researchers already knew that this wonder material <a href="https://www.nature.com/news/graphene-conducts-electricity-ten-times-better-than-expected-1.14676" style="background-color:transparent;color:rgb(0,102,153);vertical-align:baseline;word-break:break-word;box-sizing:inherit">can conduct electricity at ultra-high speed</a>. But the MIT team had taken a giant leap by turning graphene into a superconductor: a material that allows electricity to flow without resistance. They achieved that feat by placing one sheet of graphene over another, rotating the other sheet to a special orientation, or ‘magic angle’, and cooling the ensemble to a fraction of a degree above absolute zero. That twist radically changed the bilayer’s properties — turning it first into an insulator and then, with the application of a stronger electric field, into a superconductor.</p></div></div><div><br></div><div><font size="4">Ted</font></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Dec 15, 2022 at 10:17 PM Charles Holbrow <<a href="mailto:chholbrow@gmail.com">chholbrow@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dan Kleppner has spoken with Maia Weinstock who is a science writer and Associate Director at MIT News. She is author of a recent biography of Millie Dresselhaus (1930-2017). Its title <i>Carbon Queen </i>recognizes Millie's important work on carbon nanotubes. Ms. Weinstock lives in Belmont and says she's willing to talk to us but wants to speak to a live audience. <div><br></div><div>Have any of us read her book?<br><div><br></div><div>Can we provide a big enough --- say 20 --- live audience so that LCTG is not embarrassed? The current 5 to 7 live audience would be embarrassingly small. </div><div><br></div><div>Work on layers of graphene two and three sheets thick and rotated small angles with respect to each other has found superconductivity and other surprising electronic effects. The studies of graphene are producing exciting discoveries.</div><div><br></div><div>--Charlie</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Dec 15, 2022 at 1:31 PM john rudy <<a href="mailto:jjrudy1@comcast.net" target="_blank">jjrudy1@comcast.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div lang="EN-US" style="overflow-wrap: break-word;"><div><p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif">Do we have a metallurgist in the group (or one with a contact) who could give us a talk on graphene?<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif">John<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:Arial,sans-serif">John Rudy<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:Arial,sans-serif">781-861-0402<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:Arial,sans-serif">781-718-8334 (cell)<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:Arial,sans-serif"><a href="mailto:John.rudy@alum.mit.edu" target="_blank">John.rudy@alum.mit.edu</a> <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:Arial,sans-serif">13 Hawthorne Lane<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:Arial,sans-serif">Bedford, MA 01730-1047<u></u><u></u></span></p><p class="MsoNormal"><img border="0" width="99" height="94" style="width: 1.0312in; height: 0.9791in;" id="m_486415436205853769m_-5320104815371779308Picture_x0020_1" src="cid:18518d4d36f4cff311"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p></div></div>===============================================<br>
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