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Primeur weekly 2013-09-30

Focus

2013: Another year on the road to Exascale - An Interview with Thomas Sterling and Satoshi Matsuoka - Part I ...

The Cloud

VEP 2.1 is now available ...

Cloud-for-Europe gears up for the future ...

Cloud computing must tackle the security challenge ...

European Space Agency delivers its SuperSites Exploitation Platform on Interoute Virtual Data Centre ...

Oracle announces roadmap for Nimbula Director and OpenStack API integration with Oracle Exalogic Elastic Cloud ...

IBM announces US $17 million investment in new Cloud data centre ...

HP Enterprise Services launches new Cloud-based Analytics as a Service based on HP’s Big Data analytics platform ...

EuroFlash

Bull and Sinequa announce unmatched performance on bullion servers, enabling new real time Big Data experience ...

ADVA Optical Networking shows first SDN-automated end-to-end provisioning for dispersed data centres ...

European Landscape Study of Research Data Management ...

HPC Midlands and Bull lead the way in making supercomputing accessible to industry ...

Domain walls as new information storage medium ...

Counting on neodymium ...

USFlash

CoolIT Systems selected by CoinTerra to partner for liquid cooling solutions ...

Agilent Technologies accelerates smartphone and defense simulations by a factor of 64 ...

University of Utah's Christopher Johnson, leader in scientific visualization and computing, will receive 2013 IEEE Computer Society Sidney Fernbach Award ...

LSU researchers receive $4 million NSF grant for new supercomputing cluster ...

Convey Computer launches hybrid-core Memcached appliance - speeds performance, reduces cost of ownership ...

Terascala advances its vision of optimizing high-performance computing work flows for faster time to results ...

Teradata named in two Dow Jones Sustainability Indices for 4th consecutive year ...

Clot busting simulations test potential stroke treatment ...

Supercomputers help solve a 50-year homework assignment ...

Counting on neodymium


Forschungszentrum Juelich
24 Sep 2013 Juelich - Magnetic molecules are regarded as promising functional units for the future of information processing. An interdisciplinary team of researchers from Jülich and Aachen were the first to produce particularly robust magnetic molecules that enable a direct electrical readout of magnetic information. This was made possible by selecting the rare earth metal neodymium as the central building block of the molecule. The team's research findings were published on-line in the renowned journalNature Communications(DOI: 10.1038/ncomms3425).

The miniaturization of processors is approaching the limits of what is physically possible. At the same time, the global energy consumption by information and communications technologies is increasing continuously, requiring new approaches to handle the growing volume of data. Magnetic molecules provide a solution to this problem. They could take the place of conventional electronic components, such as diodes or transistors. In contrast to these components, however, they can be controlled with minimal voltage - which drastically reduces energy consumption - and have much more sophisticated switching functions that depend on the magnetism of the molecules.

Magnetic molecules act as tiny magnets and are able to process information in the form of electrical signals. They always have the same number of atoms, can be designed specifically for various functions, and can be produced cost-effectively in an identical form over and over again. In order to use this 'molecular spintronics' in technical applications, the magnetic structure of the molecules must be effectively shielded from environmental influences, but at the same time, it must be accessible to electric current.

"You could say that electric current and magnetism have to communicate with each other", stated Dr. Daniel Bürgler from Forschungszentrum Jülich and the Jülich Aachen Research Alliance. The physicist's team, located in Jülich and Aachen, has produced a molecule that fulfils these requirements: "In neodymium phthalocyanine, the same electrons that give rise to magnetism are also involved in electronic transport", explained Daniel Bürgler. The researchers were able to demonstrate this by comparing simulated data to experimental values.

The metal neodymium is a rare earth metal. Molecules comprising rare earth atoms and phthalocyanines, which can be found in nature in the form of leaf pigments, are considered particularly stable and shield the magnetic state of the central rare earth atoms very effectively. However, electrical readout of the magnetic state directly from these molecules had failed in the past. Due to the electrical contacting of these molecules, the electric current was hardly influenced by the magnetic structure.

In order to identify a suitable rare earth atom, the researchers first analysed the distribution of the electrons flying about the atoms like a cloud. Only some of the electrons produce the magnetic structure. These must be situated sufficiently deep within the electron cloud to be unaffected by environmental influences. At the same time, they must not be located so deep as to prevent interaction with the electrons conducting electric current. Neodymium fulfils these requirements, because it is more lightweight than other lanthanides and its electrons are distributed within a larger cloud.
Source: Forschungszentrum Juelich

Back to Table of contents

Primeur weekly 2013-09-30

Focus

2013: Another year on the road to Exascale - An Interview with Thomas Sterling and Satoshi Matsuoka - Part I ...

The Cloud

VEP 2.1 is now available ...

Cloud-for-Europe gears up for the future ...

Cloud computing must tackle the security challenge ...

European Space Agency delivers its SuperSites Exploitation Platform on Interoute Virtual Data Centre ...

Oracle announces roadmap for Nimbula Director and OpenStack API integration with Oracle Exalogic Elastic Cloud ...

IBM announces US $17 million investment in new Cloud data centre ...

HP Enterprise Services launches new Cloud-based Analytics as a Service based on HP’s Big Data analytics platform ...

EuroFlash

Bull and Sinequa announce unmatched performance on bullion servers, enabling new real time Big Data experience ...

ADVA Optical Networking shows first SDN-automated end-to-end provisioning for dispersed data centres ...

European Landscape Study of Research Data Management ...

HPC Midlands and Bull lead the way in making supercomputing accessible to industry ...

Domain walls as new information storage medium ...

Counting on neodymium ...

USFlash

CoolIT Systems selected by CoinTerra to partner for liquid cooling solutions ...

Agilent Technologies accelerates smartphone and defense simulations by a factor of 64 ...

University of Utah's Christopher Johnson, leader in scientific visualization and computing, will receive 2013 IEEE Computer Society Sidney Fernbach Award ...

LSU researchers receive $4 million NSF grant for new supercomputing cluster ...

Convey Computer launches hybrid-core Memcached appliance - speeds performance, reduces cost of ownership ...

Terascala advances its vision of optimizing high-performance computing work flows for faster time to results ...

Teradata named in two Dow Jones Sustainability Indices for 4th consecutive year ...

Clot busting simulations test potential stroke treatment ...

Supercomputers help solve a 50-year homework assignment ...