Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Switchable nano magnets: Research group at Kiel University switches magnetism of individual molecules

Computer graphic of the spin-crossover molecule that was used for the experiments on gold surface and the STM images of its different magnetic states
Picure & copyright: Holger Naggert & Thiruvancheril Gopakumar
Computer graphic of the spin-crossover molecule that was used for the experiments on gold surface and the STM images of its different magnetic states

Picure & copyright: Holger Naggert & Thiruvancheril Gopakumar

Abstract:
Using individual molecules instead of electronic or magnetic memory cells would revolutionise data storage technology, as molecular memories could be thousand-fold smaller. Scientists of Kiel University took a big step towards developing such molecular data storage. They succeeded in selectively switching on and off the magnetism of individual molecules, so-called spin-crossover complexes, by electrons. The interdisciplinary study is part of the Collaborative Research Centre 677 "Functions by Switching", which is funded by the German Research Foundation (DFG). The results prove that it is technically possible to store information using molecules. The study will be published on June 25th in the German science magazine "Angewandte Chemie" (Applied Chemistry).

Switchable nano magnets: Research group at Kiel University switches magnetism of individual molecules

Kiel, Germany | Posted on June 14th, 2012

"In principle information may be stored in a single molecule. However, techniques that would make such an approach feasible are becoming available just now", explains project leader Professor Richard Berndt of the Institute of Experimental and Applied Physics at Kiel University. Since the 1980s scientists are able to image individual molecules on surfaces with scanning tunnelling microscopes, he continues. Current research aims at controlling the characteristics of single molecules in order to facilitate future technical applications. The Collaborative Research Centre 677 "Functions by Switching" at Kiel University is a large-scale project engaged in such investigations, which aim at constructing molecular machines.

The current study is focused on the magnetism of molecules. Using a scanning tunnelling microscope Dr. Thiruvancheril Gopakumar, who carried out the study, was able to switch individual molecules between two magnetic states. Despite their dense packing in a molecular layer he was able to target individual molecules for switching. "Many research groups are striving to control the magnetic characteristics of molecules. Gopakumar's studies have taken us one step ahead", says Berndt.

The molecules (spin-crossover complexes) were synthesised at the Institute of Inorganic Chemistry at Kiel University. "Even though it took us a long time to find adequate molecules, we are very pleased with the outcome", states Professor Felix Tuczek, head of the research group "Inorganic Molecular Chemistry". The next step will be to adapt the molecules in a way that would allow scientists to switch them with light instead of electrons and at higher temperatures.

####

For more information, please click here

Contacts:
Prof. Dr. Richard Berndt
Institut für Experimentelle und Angewandte Physik
phone: +49 (431) 880-3946


Christian-Albrechts-Universität zu Kiel
Press and Communication Services
Dr. Boris Pawlowski
Text: Stefanie Maack
Address: D-24098 Kiel
phone: +49 (0431) 880-2104
fax: +49 (0431) 880-1355

Copyright © Kiel University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Original publication:

Further information about CRC 677:

Related News Press

News and information

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Physics

Sensing technology takes a quantum leap with RIT photonics research: Office of Naval Research funds levitated optomechanics project August 10th, 2017

Imaging

Industry’s First Dedicated Cryo-DualBeam System Automates Preparation of Frozen, Biological Samples: New Thermo Scientific Aquilos FIB/SEM protects sample integrity and enhances productivity for cryo-electron tomography workflow August 8th, 2017

Thermo Fisher Scientific Advances Cryo-EM Leadership to Drive Structural Biology Discoveries: New Thermo Scientific Krios G3i raises bar for performance, automation and time-to-results Breakthrough Thermo Scientific Glacios provides a cryo-EM entry path for a broader range of res August 8th, 2017

New Quattro Field Emission ESEM Emphasizes Versatility and Ease of Use: Thermo Scientific Quattro ESEM allows materials science researchers to study nanoscale structure in almost any material under a range of environmental conditions August 8th, 2017

Thermo Fisher Scientific’s New Talos F200i S/TEM Delivers Flexible, High-Performance Imaging: New compact S/TEM can be configured to meet specific imaging and analytical requirements for materials characterization in research laboratories August 8th, 2017

Memory Technology

Surprise discovery in the search for energy efficient information storage August 10th, 2017

Liquid electrolyte contacts for advanced characterization of resistive switching memories July 26th, 2017

Shining rings: A new material emits white light when exposed to electricity: New synthetic approach could spark development of other dynamic materials July 24th, 2017

Pulses of electrons manipulate nanomagnets and store information: Scientists use electron pulses to create and manipulate nanoscale magnetic excitations that can store data July 21st, 2017

Discoveries

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Announcements

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Tools

Scientists from the University of Manchester and Diamond Light Source work with Deben to develop and test a new compression stage to study irradiated graphite at elevated temperatures August 15th, 2017

FRITSCH • Milling and Sizing! Innovations at POWTECH 2017 - Hall 2 • Stand 227 August 9th, 2017

Thermo Fisher Scientific Advances Cryo-EM Leadership to Drive Structural Biology Discoveries: New Thermo Scientific Krios G3i raises bar for performance, automation and time-to-results Breakthrough Thermo Scientific Glacios provides a cryo-EM entry path for a broader range of res August 8th, 2017

New Quattro Field Emission ESEM Emphasizes Versatility and Ease of Use: Thermo Scientific Quattro ESEM allows materials science researchers to study nanoscale structure in almost any material under a range of environmental conditions August 8th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project