Navigation Links
Physicists capture first images of atomic spin
Date:4/26/2010

ATHENS, Ohio (April 26, 2010) Though scientists argue that the emerging technology of spintronics may trump conventional electronics for building the next generation of faster, smaller, more efficient computers and high-tech devices, no one has actually seen the spina quantum mechanical property of electronsin individual atoms until now. In a study published as an Advance Online Publication in the journal Nature Nanotechnology on Sunday, physicists at Ohio University and the University of Hamburg in Germany present the first images of spin in action.

The researchers used a custom-built microscope with an iron-coated tip to manipulate cobalt atoms on a plate of manganese. Through scanning tunneling microscopy, the team repositioned individual cobalt atoms on a surface that changed the direction of the electrons' spin. Images captured by the scientists showed that the atoms appeared as a single protrusion if the spin direction was upward, and as double protrusions with equal heights when the spin direction was downward.

The study suggests that scientists can observe and manipulate spin, a finding that may impact future development of nanoscale magnetic storage, quantum computers and spintronic devices.

"Different directions in spin can mean different states for data storage," said Saw-Wai Hla, an associate professor of physics and astronomy in Ohio University's Nanoscale and Quantum Phenomena Institute and one of the primary investigators on the study. "The memory devices of current computers involve tens of thousands of atoms. In the future, we may be able to use one atom and change the power of the computer by the thousands."

Unlike electronic devices, which give off heat, spintronic-based devices are expected to experience less power dissipation.

The experiments were conducted in an ultra-high vacuum at the low temperature of 10 Kelvin, with the use of liquid helium. Researchers will need to observe the phenomenon at room temperature before it can be used in computer hard drives.

But the new study suggests a path to that application, said study lead author Andre Kubetzka of the University of Hamburg. To image spin direction, the team not only used a new technique but also a manganese surface with a spin that, in turn, allowed the scientists to manipulate the spin of the cobalt atoms under study.

"The combination of atom manipulation and spin sensitivity gives a new perspective of constructing atomic-scale structures and investigating their magnetic properties," Kubetzka said.


'/>"/>

Contact: Andrea Gibson
gibsona@ohio.edu
740-597-2166
Ohio University
Source:Eurekalert  

Related biology technology :

1. U-M physicists create first atomic-scale map of quantum dots
2. Physicists at UC Santa Barbara make discovery in quantum mechanics
3. NYU physicists find way to explore microscopic systems through holographic video
4. Nanophysicists find unexpected magnetic effect
5. Physicists discover important step for making light crystals
6. U of T physicists squeeze light to quantum limit
7. McGill physicists find a new state of matter in a transistor
8. Physicists tweak quantum force, reducing barrier to tiny devices
9. UBC physicists develop impossible technique to study and develop superconductors
10. Discovery by UC Riverside physicists could enable development of faster computers
11. New unifying theory of lasers advanced by physicists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Physicists capture first images of atomic spin
(Date:4/26/2017)... SAN DIEGO, CALIF. (PRWEB) , ... April 26, ... ... Mother’s Day? Lajollacooks4u, San Diego’s premiere team-building and cooking events company, offers ... cooking classes. , Menus specialize in California cuisine, and guests leave inspired ...
(Date:4/26/2017)... Hong Kong (PRWEB) , ... April 26, 2017 ... ... be hosted in EMEA and North America this May ... from May 16-18 , Donald H. Taylor, Chairman of the Learning and Performance ...
(Date:4/25/2017)... ... April 25, 2017 , ... L3 ... to announce the company is now a certified iMedNet eClinical and Electronic Data ... enables the company’s clinical research team to build, customize and manage clinical trial ...
(Date:4/24/2017)... , ... April 24, 2017 , ... ... thermal denaturation in a cellular milieu; however, the broad application of this cellular ... simple platforms with sensitive quantitative readouts. Cell-based thermal stabilization assays are valuable methods ...
Breaking Biology Technology:
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based and Touchless), ... published by MarketsandMarkets, the market is expected to be worth USD 18.98 billion ... Continue Reading ... ...      (Logo: ...
(Date:3/22/2017)... March 21, 2017   Neurotechnology , a ... technologies, today announced the release of the ... provides improved facial recognition using up to 10 ... single computer. The new version uses deep neural-network-based ... and it utilizes a Graphing Processing Unit (GPU) ...
(Date:3/22/2017)... 2017 Vigilant Solutions , a vehicle ... agencies, announced today the appointment of retired FBI special ... safety business development. Mr. Sheridan brings more ... a focus on the aviation transportation sector, to his ... Mr. Sheridan served as the Aviation Liaison Agent Coordinator ...
Breaking Biology News(10 mins):