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:5/20/2016)... ... , ... Korean researchers say Manumycin A triggers apoptosis, or natural cell death, ... the disease. Surviving Mesothelioma has just posted an article on the new study. ... their mesothelioma study on the fact the Manumycin A, a derivative of Streptomyces parvulus, ...
(Date:5/19/2016)... ... May 19, 2016 , ... KCAS Bioanalytical and Biomarker ... as Director, Large Molecule & Biomarker Bioanalysis. , Dr. Siddiqui has more than ... studies for preclinical and clinical safety programs. “We’ve seen significant demand for, and ...
(Date:5/18/2016)... -- The Biotech industry continues to face a ... are no opportunities ahead. Today, ActiveWallSt.com has on its list ... ), Seattle Genetics Inc. (NASDAQ: SGEN ), Chiasma ... OPHT ). Sign up now to receive our ... Threshold Pharmaceuticals Inc.,s shares gained 0.68%, closing ...
(Date:5/17/2016)... , May 18, 2016 ... 2.0 prefilled pen following approval by EMA, the European ... leading science and technology company, the new pen version ... an increased level of confidence to patients during use. ... GONAL-f® prefilled pen easier to handle with a larger ...
Breaking Biology Technology:
(Date:3/29/2016)... RATON, Florida , March 29, 2016 ... or the "Company") LegacyXChange "LEGX" and SelectaDNA/CSI Protect are ... DNA in ink used in a variety of writing ... theft. Buyers of originally created collectibles from athletes on ... through forensic analysis of the DNA. ...
(Date:3/18/2016)... --> --> Competitive Landscape Analysis ... Physical infrastructure and Perimeter Surveillance & Detection Systems ... and the continuing migration crisis in the Middle ... led visiongain to publish this unique report, which is crucial ... & security companies in the border security market and the ...
(Date:3/14/2016)... http://www.apimages.com ) - ... - Renvoi : image disponible via AP Images ( ... --> DERMALOG, le leader de l,innovation ... d,empreintes digitales pour l,enregistrement des réfugiés en Allemagne. ... produire des cartes d,identité aux réfugiés. DERMALOG dévoilera ...
Breaking Biology News(10 mins):