News tagged with scanning tunnelling microscope
High-temperature superconductivity starts at nanoscale
(Phys.org) -- High-temperature superconductivity doesn't happen all it once. It starts in isolated nanoscale patches that gradually expand until they take over.
May 31, 2012 |
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New method offers control of strain on graphene membranes
(PhysOrg.com) -- Graphene could be the superhero of materials – it’s light, strong and conducts heat and electricity effectively, which makes it a great material for potential use in all kinds of ...
Nanotechnology / Nanomaterials
Apr 02, 2012 |
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Single-atom transistor is 'perfect'
In a remarkable feat of micro-engineering, UNSW physicists have created a working transistor consisting of a single atom placed precisely in a silicon crystal.
Feb 19, 2012 |
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A baby crystal is born
Lead sulfide (PbS) forms when an equal number of lead and sulfur atoms exchange electrons and bond together in cubic crystals. Now scientists have determined that a structure comprising 32 lead-sulfur pairs is the smallest ...
Jan 17, 2012 |
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The world's smallest magnetic data storage unit
Scientists from IBM and the German Center for Free-Electron Laser Science (CFEL) have built the world's smallest magnetic data storage unit. It uses just twelve atoms per bit, the basic unit of information, ...
Jan 12, 2012 |
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The smallest conceivable switch: Targeted proton transfer within a molecule
For a long time miniaturization has been the magic word in electronics. Dr. Willi Auwaerter and Professor Johannes Barth, together with their team of physicists at the Technische Universitaet Muenchen (TUM), ...
Dec 12, 2011 |
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Graphene earns its stripes: New nanoscale electronic state discovered on graphene sheets
Researchers from the London Centre for Nanotechnology (LCN) have discovered electronic stripes, called 'charge density waves', on the surface of the graphene sheets that make up a graphitic superconductor. ...
Nanotechnology / Nanomaterials
Nov 29, 2011 |
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World's smallest electric motor made from a single molecule
Chemists at Tufts University's School of Arts and Sciences have developed the world's first single molecule electric motor, a development that may potentially create a new class of devices that could be used ...
Sep 04, 2011 |
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Microscopy, quantum-style: Atomic stacks imaged in real space
(PhysOrg.com) -- Since the first optical microscopes appeared in the late 1600s – an exact date and original inventor elude precise identification – microscopy has evolved dramatically. Scanning ...
Aug 31, 2011 |
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Research team devises better method for mapping orbitals of molecules
(PhysOrg.com) -- A team of physicists comprised of members from IBM Research in Switzerland and the University of Liverpool in the U.K. have figured out a way to improve on results obtained using a Scanning Tunneling Microscope ...
Aug 25, 2011 |
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An advance toward ultra-portable electronic devices
Scientists are reporting a key advance toward the long-awaited era of "single-molecule electronics," when common electronic circuits in computers, smart phones, audio players, and other devices may shrink ...
Jul 20, 2011 |
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Tunnel view of how electrons play
(PhysOrg.com) -- Electrons behave like football teams: the match becomes interesting when the teamwork is as good as that conjured up by the players of FC Barcelona. Electrons which interact strongly with ...
Jun 21, 2011 |
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A molecule that switches on and off
A single molecule whose charge state and shape can be changed at will: the latest breakthrough at the CEMES should prove a key advantage in the race for miniaturization. In addition to controlling its charge ...
Jun 10, 2011 |
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Single molecule electronics and 'chemical soldering'
(PhysOrg.com) -- Single molecule electronics is a division of nanotechnology utilizing single molecules as electronic components and its study has the ultimate goal of reducing the size of common electrical ...
Nanotechnology / Nanomaterials
May 13, 2011 |
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Electronic life on the edge: Scientists discover the edge states of graphene nanoribbons
(PhysOrg.com) -- As far back as the 1990s, long before anyone had actually isolated graphene – a honeycomb lattice of carbon just one atom thick – theorists were predicting extraordinary properties ...
May 08, 2011 |
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