http://www.physorg.com/nanotech-news/nano-physics/ en-us PhysOrg.com provides the latest news on nanophysics, nanotechnology, nanotech and nanoscience. (PhysOrg.com) -- "Carbon nanotubes are exciting for fundamental physics, and for potential technological applications," Nadya Mason tells PhysOrg.com. "However, we are generally limited in the way that we can study them. Many of these limitations have to do with controlling tunneling, or the way electrons move on and off the nanotube." In order to overcome this limitation, Mason, a scientist at the University of Illinois at Urbana-Champaign, participated in an experiment using a superconducting tunnel probe in a carbon nanotube to observe spectroscopic features. http://www.physorg.com/news177934374.html Nanotechnology - Nanophysics Fri, 20 Nov 2009 10:13:55 EST news177934374 (PhysOrg.com) -- Engineering researchers have used a very tiny beam of light with as little as 1 milliwatt of power to move a silicon structure up to 12 nanometers. http://www.physorg.com/news177672319.html Nanotechnology - Nanophysics Tue, 17 Nov 2009 09:25:53 EST news177672319 Berkeley Lab researchers have engineered a new class of bowtie-shaped devices that capture, filter and steer light at the nanoscale. These "nano-colorsorter" devices act as antennae to focus and sort light in tiny spaces, a useful technique for harvesting broadband light for color-sensitive filters and detectors. http://www.physorg.com/news177251056.html Nanotechnology - Nanophysics Thu, 12 Nov 2009 12:25:15 EST news177251056 The performance of modern electronics increases steadily on a fast pace thanks to the ongoing miniaturization of the utilized components. However, se-vere problems arise due to quantum-mechanical phenomena when conven-tional structures are simply made smaller and reach the nanometer scale. Therefore current research focuses on the so-called bottom-up approach: the engineering of functional structures with the smallest possible building blocks - single atoms and molecules. http://www.physorg.com/news177249897.html Nanotechnology - Nanophysics Thu, 12 Nov 2009 12:09:44 EST news177249897 In the quest to make hydrogen as a clean alternative fuel source, researchers have been stymied about how to create usable hydrogen that is clean and sustainable without relying on an intensive, high-energy process that outweighs the benefits of not using petroleum to power vehicles. http://www.physorg.com/news177242747.html Nanotechnology - Nanophysics Thu, 12 Nov 2009 10:06:27 EST news177242747 Researchers at the McCormick School of Engineering and Applied Science at Northwestern University have developed, characterized, and modeled a new kind of probe used in atomic force microscopy (AFM), which images, measures, and manipulates matter at the nanoscale. http://www.physorg.com/news177073639.html Nanotechnology - Nanophysics Tue, 10 Nov 2009 11:08:34 EST news177073639 (PhysOrg.com) -- Computers of the future could be operating not on electrons, but on tiny waves traveling through an electron "fluid," if a new proposal is successful. The new circuit design, recently introduced by Dr. Héctor J. De Los Santos, CTO of NanoMEMS Research, LLC, in Irvine, California, may be a promising candidate to replace CMOS-based circuits, and ultimately continue the circuit density growth described by Moore's Law. http://www.physorg.com/news176635049.html Nanotechnology - Nanophysics Thu, 05 Nov 2009 09:50:02 EST news176635049 In campy old movies, Lucretia Borgia swans around emptying powder from her ring into wine glasses carelessly left unattended. The poison ring is usually a confection of gold filigree holding a cabochon or faceted gemstone that can be broken to empty the ring's contents. It is invariably enormous - so large it is rather odd nobody seems to notice it. http://www.physorg.com/news176306859.html Nanotechnology - Nanophysics Sun, 01 Nov 2009 14:08:21 EST news176306859 A multidisciplinary team of UC researchers is the first to find an innovative and novel way to control an electron's spin orientation using purely electrical means. http://www.physorg.com/news175871026.html Nanotechnology - Nanophysics Tue, 27 Oct 2009 14:05:04 EST news175871026 (PhysOrg.com) -- Researchers at the California Institute of Technology have created a nanoscale crystal device that, for the first time, allows scientists to confine both light and sound vibrations in the same tiny space. http://www.physorg.com/news175766229.html Nanotechnology - Nanophysics Mon, 26 Oct 2009 08:57:51 EST news175766229 A team of engineers from the University of Pennsylvania has transformed simple nanowires into reconfigurable materials and circuits, demonstrating a novel, self-assembling method for chemically creating nanoscale structures that are not possible to grow or obtain otherwise. http://www.physorg.com/news175513114.html Nanotechnology - Nanophysics Fri, 23 Oct 2009 10:39:20 EST news175513114 Scientists at the California Institute of Technology have uncovered the physical mechanism by which arrays of nanoscale pillars can be grown on polymer films with very high precision, in potentially limitless patterns. http://www.physorg.com/news175451434.html Nanotechnology - Nanophysics Thu, 22 Oct 2009 17:31:34 EST news175451434 (PhysOrg.com) -- To power a very small device like a pacemaker or a transistor, you need an even smaller generator. The components that operate the generator are smaller yet, and the efficiency of those foundational components is critical to the performance of the overall device. http://www.physorg.com/news175444804.html Nanotechnology - Nanophysics Thu, 22 Oct 2009 15:52:12 EST news175444804 (PhysOrg.com) -- Recently, at Arizona State University`s Biodesign Institute, N.J. Tao and collaborators have found a way to make a key electrical component on a phenomenally tiny scale. Their single-molecule diode is described in this week`s online edition of Nature Chemistry. http://www.physorg.com/news175415776.html Nanotechnology - Nanophysics Thu, 22 Oct 2009 07:37:08 EST news175415776 (PhysOrg.com) -- Taking nanomaterials to a new level of structural complexity, scientists have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional structures with correspondingly advanced functions. http://www.physorg.com/news175339313.html Nanotechnology - Nanophysics Wed, 21 Oct 2009 10:23:16 EST news175339313 (PhysOrg.com) -- For decades, the transistors inside radios, televisions and other everyday items have transmitted data by controlling the movement of the electron`s charge. Scientists now have discovered that transistors could use less energy, generate less heat and operate at higher speeds if they exploited another property of the electron: its spin. http://www.physorg.com/news175283352.html Nanotechnology - Nanophysics Tue, 20 Oct 2009 19:40:01 EST news175283352 Yissum Research Development Company of the Hebrew University of Jerusalem today announced that Professor L.D. Shvartsman and Professor B. Laikhtman, from the Racah Institute of Physics at the Hebrew University of Jerusalem, have invented a novel design of TeraHertz-ray, or T-ray, lasers. http://www.physorg.com/news175247920.html Nanotechnology - Nanophysics Tue, 20 Oct 2009 08:59:07 EST news175247920 (PhysOrg.com) -- "If you open up almost any electronic gadget, you will see various elements that operating using electric circuitries," Nader Engheta tells PhysOrg.com. "Many of them have different functionalities, such as inductors, capacitors, resistors, transistors, and so forth. These well-known elements have been around for decades. But what if you could bring these concepts to the nanoscale, and what if they could operate with light instead of electricity?" http://www.physorg.com/news175161170.html Nanotechnology - Nanophysics Mon, 19 Oct 2009 08:53:59 EST news175161170 (PhysOrg.com) -- Researchers at The University of Texas at Austin have conducted a basic chemistry experiment in what is perhaps the world's smallest test tube, measuring a thousandth the diameter of a human hair. http://www.physorg.com/news174837506.html Nanotechnology - Nanophysics Thu, 15 Oct 2009 15:50:01 EST news174837506 Rutgers researchers have discovered novel electronic properties in two-dimensional sheets of carbon atoms called graphene that could one day be the heart of speedy and powerful electronic devices. http://www.physorg.com/news174745964.html Nanotechnology - Nanophysics Wed, 14 Oct 2009 13:33:58 EST news174745964 Recently, at Arizona State University's Biodesign Institute, N.J. Tao and collaborators have found a way to make a key electrical component on a phenomenally tiny scale. Their single-molecule diode is described in this week's online edition of Nature Chemistry. http://www.physorg.com/news174643920.html Nanotechnology - Nanophysics Tue, 13 Oct 2009 09:13:07 EST news174643920 Researchers analyzing the assembly of graphene (sheets of carbon only one atom thick) on a surface of iridium have found that the sheets grow by first forming tiny carbon domes. The discovery offers new insight into the growth of graphene layers and points the way to possible methods for assembling components of graphene-based computer circuits. http://www.physorg.com/news174562394.html Nanotechnology - Nanophysics Mon, 12 Oct 2009 10:50:01 EST news174562394 Researchers of Eindhoven University of Technology and the Radboud University Nijmegen in The Netherlands show for the first time why ordinary graphite is a permanent magnet at room temperature. The results are promising for new applications in nanotechnology, such as sensors and detectors. In particular graphite could be a promising candidate for a biosensor material. The results will appear online on 4 October in Nature Physics. http://www.physorg.com/news173881546.html Nanotechnology - Nanophysics Sun, 04 Oct 2009 13:26:35 EST news173881546 (PhysOrg.com) -- Building the super-fast computers of the future has just become much easier thanks to an advance by Australian researchers that lets them grab hold of tiny electronics components and probe their inner structure using only a beam of light. http://www.physorg.com/news173710043.html Nanotechnology - Nanophysics Fri, 02 Oct 2009 13:49:01 EST news173710043 (PhysOrg.com) -- University of Michigan physicists have created the first atomic-scale maps of quantum dots, a major step toward the goal of producing "designer dots" that can be tailored for specific applications. http://www.physorg.com/news173444221.html Nanotechnology - Nanophysics Tue, 29 Sep 2009 11:58:44 EST news173444221 (PhysOrg.com) -- On this day in 1989, IBM Fellow Don Eigler became the first person in history to move and control an individual atom. Shortly thereafter, on November 11 of that year, Eigler and his team used a custom-built microscope to spell out the letters IBM with 35 xenon atoms. This unprecedented ability to manipulate individual atoms signaled a quantum leap forward in in nanoscience experimentation and heralded in the age of nanotechnology. http://www.physorg.com/news173344987.html Nanotechnology - Nanophysics Mon, 28 Sep 2009 08:23:35 EST news173344987 (PhysOrg.com) -- A sensitive new Stanford-developed disposable chip detects low concentrations of the explosive trinitrotoluene (TNT) and a close chemical cousin of the dreaded toxic nerve agent sarin in water samples. The research appears online this week in the journal ACS Nano. http://www.physorg.com/news173035243.html Nanotechnology - Nanophysics Thu, 24 Sep 2009 19:10:01 EST news173035243 (PhysOrg.com) -- As technology advances, scientists look for ways to enhance electronic applications and devices. Indeed, electronics are getting smaller and more diverse. And as this happens, there is an increased requirement for flexibility in transistors, which make the electronic devices we desire work. Unfortunately, silicon and polymers may not fulfill the requirements needed to advance on to the transistors of the future. http://www.physorg.com/news172837799.html Nanotechnology - Nanophysics Tue, 22 Sep 2009 11:30:32 EST news172837799 (PhysOrg.com) -- Brookhaven Lab scientists have developed a new scanning electron microscope capable of selectively imaging single atoms on a surface while simultaneously probing atoms throughout the sample?s depth. The development could greatly expand scientists? ability to understand and control chemical reactions, such as those in energy-conversion devices. http://www.physorg.com/news172746177.html Nanotechnology - Nanophysics Mon, 21 Sep 2009 10:04:16 EST news172746177 South Korean scientists said Friday they had demonstrated a spin-injected field effect transistor in a high-mobility InAs heterostructure. http://www.physorg.com/news172478181.html Nanotechnology - Nanophysics Fri, 18 Sep 2009 07:37:20 EST news172478181