Extractions: from the old-dog-new-tricks dept. Diana writes "Physicists at CNRS have demonstrated superconductivity in silicon var ad6 = 'active'; superconductivity boron silicon cold ... tagging beta This discussion has been archived. No new comments can be posted. Silicon Superconductors More Login The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
Superconductor Synthesis And Meissner Effect superconductors have two outstanding features. Zero electrical resistivity. Click on the menu options to learn more about superconductors. http://www.chem.ox.ac.uk/vrchemistry/super/default.html
ScienceMatters @ Berkeley. superconductors, on the other hand, can transmit a current without loss when Power lines made of superconductors, Lanzara argues, could retain the http://sciencematters.berkeley.edu/archives/volume5/issue34/story1.php
Extractions: Printer-friendly format E-mail this story by Kathleen M. Wong Alessandra Lanzara is a Berkeley professor of physics and a member of Lawrence Berkeley National Laboratory's Materials Sciences Division. Photo credit: courtesy Alessandra Lanzara Imagine a world where electricity was virtually free and the means to store it limitless. Alessandra Lanzara, a Berkeley professor of physics, sees a way to reach this goal: by restringing the power grid with high temperature superconductors. "There is a lot of waste getting electricity from its production site to your home. This is because materials that carry a current have resistivity; their conduction isn't perfect," Lanzara says. Superconductors, on the other hand, can transmit a current without loss when chilled below a critical temperature. Power lines made of superconductors, Lanzara argues, could retain the energy now lost to waste, drastically increasing the amount available for use and decreasing its cost. Superconductors can also hold a current indefinitely without any loss of power, making them ideal for storing intermittent energy from sources like the sun.
Seeing With Superconductors: Scientific American Tiny devices made of superconducting material that act as superb sensors of photons and other particles are revolutionizing a wide range of research and http://www.sciam.com/article.cfm?chanID=sa006&colID=1&articleID=000B5038-DBAC-15
Extractions: @import "/css/screen/shared/styles.css?v1"; @import '/css/screen/shared/toolbar_ifs.css'; @import "/css/screen/nol/styles.css?v4"; @import "/css/screen/nol/furniture.css"; @import "/css/screen/nol/promo.css"; @import "/css/screen/nol/programmes.css?v3"; @import "/css/screen/nol/business.css"; @import "/css/screen/nol/ifs.css"; @import "/css/screen/nol/in_pictures.css"; @import "/css/screen/shared/emp.css?v1"; Home News Sport Radio ... Accessibility help One-Minute World News In 1987, Ronald Reagan declared that the US was about to enter an incredible new era of technology. Levitating high-speed trains, super-efficient power generators and ultra-powerful supercomputers would become commonplace thanks to a new breed of materials known as high temperature superconductors (HTSC).
SRI: PSD's Superconductors Ongoing research in superconductors at SRI has resulted in the design, construction, and testing of novel fluidizedbed CVD systems for high rate deposition http://www.sri.com/psd/research/superconductors.html
Extractions: Search by job title, geography and build a list of executive contacts By virtue of their chemical makeup, plastics have no business conducting electricity. But in the 1970s, scientists discovered that impurities added to certain polymers made it possible for them to carry small electrical currents. Now, researchers at Lucent Technologies' Bell Labs have gone a step further. By "tricking" a common polymer, they've found a way to make plastic conduct electricity with no resistance at very low temperatures. The Bell Labs development caps 20 years of research aimed at creating the first organic superconductor. "A new window into nature has opened up," asserts Ananth Dodabalapur, a device physicist at Bell Labs and member of the research team. The polymer, called polythiophene, is used in making inexpensive optical devices such as display panels and "smart" pixels. But its potential as a superconductor may be far greater. The research, which was reported on Mar. 8 in the journal Nature , may be a harbinger of other superconducting polymers that could be used to create superfast "quantum" computers and other superconducting electronic devices.
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Extractions: Admissions Conferences Contact Information ... Physics Home Magnetism and superconductivity Neutron Scattering from Cuprate High-T c Superconductors ... Applied superconductivity and magnet development Superconductors - high and low temperature A T Boothroyd In recent years increasing evidence has been found for a link between the physics of magnetic ordering and certain types of superconductivity. We aim to investigate this link through fundamental studies on simple model compounds exhibiting novel magnetic and superconducting behaviour. Much of the work is motivated by the desire to understand the mechanism of superconductivity in unconventional systems, such as the layered cuprate high-Tc superconductors. Current problems of interest include: i) magnetic structures and spin fluctuations in cuprate high-Tc superconductors and related, low dimensional quantum magnets ii) orbital fluctuations in rare earth and transition metal systems iii) charge and spin ordering in doped antiferromagnets iv) novel methods of data analysis and visualisation.
The Quest For A New Class Of Superconductors Dec 20, 2007 Fifty years after the Nobelprize winning explanation of how superconductors work, a research team from Los Alamos National Laboratory, http://www.eurekalert.org/pub_releases/2007-12/danl-tqf122007.php
Extractions: DOE/Los Alamos National Laboratory LOS ALAMOS, New Mexico, December 20, 2007Fifty years after the Nobel-prize winning explanation of how superconductors work, a research team from Los Alamos National Laboratory, the University of Edinburgh and Cambridge University are suggesting another mechanism for the still-mysterious phenomenon. In a review published today in Nature, researchers David Pines, Philippe Monthoux and Gilbert Lonzarich posit that superconductivity in certain materials can be achieved absent the interaction of electrons with vibrational motion of a materials structure. The review, Superconductivity without phonons, explores how materials, under certain conditions, can become superconductors in a non-traditional way. Superconductivity is a phenomenon by which materials conduct electricity without resistance, usually at extremely cold temperatures around minus 424 degrees Fahrenheit (minus 253 degrees Celsius)the fantastically frigid point at which hydrogen becomes a liquid. Superconductivity was first discovered in 1911. A newer class of materials that become superconductors at temperatures closer to the temperature of liquid nitrogenminus 321 degrees Fahrenheit (minus 196 degrees Celsius)are known as high-temperature superconductors.
IRL - High Temperature Superconductors High temperature superconductors; HTS; superconducting magnets; cryogenic refrigeration; http://www.irl.cri.nz/scienceandtechnology/technology-platforms/High-temperature
Extractions: HOME ABOUT IRL DOING BUSINESS CAREERS Science and technology Index Our expertise Technology platforms print ... High Temperature Superconductors High Temperature Superconductors Industrial Research and partners are developing HTS technologies for the scientific, medical, industrial and power industries. We are researching technologies for the integration of HTS coils in commercial magnets and rotating electrical machines. We are also actively involved in materials and manufacturing process improvements for second generation YBCO wire and the development of pulse tube cryogenic refrigeration. Our world-leading HTS programme supports HTS-110 Limited, a spin-off company from Industrial Research, which designs and builds magnet products for scientific and industrial applications, including laboratory magnets and rotors and high speed generators. We also have a key partnership with American Superconductor Corporation for the development of HTS wire. Links open in the Our expertise subsection. visit the HTS-110 Limited website Bob Buckley
Xtal-3d VRML Superconductor Structures Construct superconductors with xtal3d. Select a structure from the list and click on Display. Change the model parameters if necessary, refering to the http://barns.ill.fr/dif/xtal-3d.super.html
Extractions: Go Home 2 April 96 Select a structure from the list and click on Display . Change the model parameters if necessary, refering to the co-ordinates list. Expert options can be entered in the command box. Download a copy of xtal-3d , available for UNIX, Macintosh and PC. VRML database constructed by Andrew Crowe. See also our zeolite list. Any Questions? Expert options: 214 (La,Ba)2CuO4 0201T' (Nd,Ce)2CuO4-x 0201T* (Nd,Sr,Ce)2CuO4 1201 HgBa2CuO4+x 1201T* (Pb,Cu)(Eu,Ce)2(Sr,Eu)2Cu2O9 1201T*F(Eu,Ce)2(Ba,Eu)2Cu3O10-x 1201*2 (Tl,Pb)(CO3)Sr4Cu2O7 (Carbonate) 2201T* Bi2Sr2(Gd,Ce)2Cu2O10 3201 Pb2(Sr,La)2Cu2O6 0212 (La,Sr,Ca)3Cu2O6 1212 TlBa2CaCu2O7-x 123 YBa2Cu3O7-x 1223 TlBa2Ca2Cu3O9+x 0234 (Sr,Ca)5Cu4O10 inf-1 (Ba,Sr)CuO2
Magnesium Diboride Superconductors (MGB2) Summarized Publication and Citation Data from ISI® for the Analysis of Research Trends Performance in Magnesium Diboride superconductors. http://www.esi-topics.com/mgb2/index.html
Extractions: Beginning in mid-February 2008, the 1997-2007 online version of the Science Watch newsletter, ESI-Topics.com, and in-cites.com, will all be featured together on the redesigned ScienceWatch.com . All previous content from the three sites will be permanently archived, and remain accessible from any existing bookmarks to the archived pages. No new content will be added to this site. Updates and new content (updated biweekly) are available at ScienceWatch.com now. All Topics Menu
Liveatthewitchtrials: Useful Superconductors FX prediction market has a bet on the likelihood of an alloy highTc superconductor by 2017. The current market value of this places it at 65% likely. http://liveatthewitchtrials.blogspot.com/2008/03/useful-superconductors.html
Extractions: Being malleable and ductile would also add to the practical applications of the superconductor. Malleable and ductile in this description are slightly ambiguous, I assume only metallic compounds can have these qualities but I could be wrong. So replace malleable and ductile with metallic in the post if that is a better description.
What Are High Temperature Superconductors? An answer to the problem lies in the development of superconductors materials in which electrical resistance is zero, which will result in full use of http://www.tech-faq.com/high-temperature-superconductors.shtml
Extractions: Enter your search terms Submit search form Web www.tech-faq.com Tech-FAQ Tip: Click Here to Check for PC Errors The primary problem with the current use of electricity is that of electrical resistance. In broad terms, this refers to the "opposition" of the materials to the electricity passing through them. Almost all materials now used to conduct electricity exhibit resistance to some degree or another. This results in some loss in the electrical power distributed to consumers and users - either in terms of generating heat (which is the reason for cooling fans and "heat sinks" in many electrical appliances - they are needed to dissipate the heat created by electrical resistance) or an outright drop in power throughput - resulting in a very inefficient use of the power generated. An answer to the problem lies in the development of superconductors - materials in which electrical resistance is zero, which will result in full use of every volt of electricity generated.
Extractions: PhysOrg Account: Sign In Sign Up Published: 15:05 EST, July 06, 2007 Toolbox Big kink (left) vs. small kink (right). a) OP91 BSCCO (T=10K). b) Brillouin zone (BZ) and Fermi surface (FS) for BSCCO (solid line) and LBCO (dashed line). Straight lines represent the momentum lines probed in the spectra with correspondingly colored dispersion. c) and d) LBCO spectra at x=0.125 for two different momentum lines as indicated in b). e) ARPES intensity from the nodal line in superconducting state in optimally doped BSCCO. The velocity or rate of dispersion changes in the vicinity of the Fermi level, resulting in a kink in dispersion at ~60 meV bellow the Fermi level. Small kink image from Evidence for Quantum Critical Behavior in the Optimally Doped Cuprate Bi2Sr2CaCu2O8+d, T. Valla, A. V. Fedorov, P. D. Johnson, B. O. Wells, Q. Li, G. D. Gu, and N. Koshizuka, Science 285, 2110 (1999). Theres another kink in the mystery of high-temperature (Tc) superconductors literally. Using photoemission studies at the NSLS, a group of researchers has revealed a new anomaly, or kink, in the energy spectrum of high-energy electrons in two different families of cuprate superconductors, further complicating their quest to discover exactly how the materials conduct electricity with zero resistance.
Physics And Superconductors This site is intended to supply a brief overview of the field of superconductors, their history, how they work, and what present day research is taking http://ffden-2.phys.uaf.edu/212_fall2003.web.dir/Matthew_Titus/Home.html
Extractions: Physics and Superconductors http://micro.magnet.fsu.edu/micro/gallery/superconductor/super3.html (Superconducting Niobium Wire) By Matthew J. Titus Physics 212, 4.5.2003 This site is intended to supply a brief overview of the field of superconductors, their history, how they work, and what present day research is taking place. The links below will guide you through this site. Enjoy! What Are Superconductors In The Beginning How Superconductors Work Research And Potential Uses ... Bibliography