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Primeur weekly 2017-04-03

Focus

Luxembourg capital of supercomputing in Europe ...

Quantum computing

Quantum communication: How to outwit noise ...

Rigetti Computing raises $64 million in Series A and B funding, led by Andreessen Horowitz and Vy Capital ...

Focus on Europe

HPC Summit Week 2017 in Barcelona to gather main HPC stakeholders in Europe ...

Six High Performance Computing centres in the UK to be officially launched ...

It is easier for a DNA knot ...

Prof. Dieter Kranzlmüller is new Chairman of the Board of Directors at Leibniz Supercomputing Centre ...

GW4 world-first ARM based production supercomputer launched at national exhibition in the UK ...

Middleware

New version of Univa Grid Engine 2x faster than Sun Grid Engine 6.2u5 ...

Huawei and Altair sign MoU to jointly pursue High-Performance Computing (HPC) opportunities and build industrial simulation Cloud solutions ...

Hardware

New HPC installation to deploy Asetek liquid cooling solution ...

HPE to acquire Nimble Storage to strengthen leadership in hybrid IT ...

New Supermicro rack scale design brings open management for on-demand Cloud scale data centres ...

Supermicro launches new Intel Optane SSD optimized platforms ...

GBP 3 million awarded to Oxford-led consortium for national machine learning computing facility ...

EPCC invests GB 2.4 million in Tier-2 Cirrus system ...

Eurotech continues to lead innovation in embedded and high-performance computing: New designs featuring 2nd generation Intel Xeon Phi and Intel Atom E39XX ...

Officials dedicate Ohio OSC's newest, most powerful supercomputer ...

USC's Information Sciences Institute tapped to produce computing chips technology ...

Applications

Supercomputer puts Colombia on fast track to designing new HIV drugs, science and engineering discovery ...

SDSC announces Annual Supercomputing & Data Science Workshop ...

IBM patents cognitive system to manage self-driving vehicles ...

Cryo-electron microscopy achieves unprecedented resolution using new computational methods ...

Psychologists enlist machine learning to help diagnose depression ...

A seismic mapping milestone ...

Information storage with a nanoscale twist ...

Nanomagnets for future data storage ...

Researchers shoot for success with simulations of laser pulse-material interactions ...

A system based on data science to predict student dropouts ...

The Cloud

Oracle unveils industry-first Cloud Converged Storage to help organisations bridge on-premises and Oracle Cloud storage ...

Nanomagnets for future data storage


Dysprosium atoms (green) on the surface of nanoparticles can be magnetized in only one of two possible directions: 'spin up' or 'spin down'. Credit: ETH Zurich / Universite de Rennes.
30 Mar 2017 Zurich - The idea is intriguing: if only a single atom or small molecule was needed for a single unit of data - a zero or a one in the case of binary digital technology, massive volumes of data could be stored in the tiniest amount of space. This is theoretically possible, because certain atoms can be magnetised in only one of two possible directions: "spin up" or "spin down". Information could then be stored and read by the sequence of the molecules' magnetisation directions.

However, several obstacles still need to be overcome before single-molecule magnet data storage becomes a reality. Finding molecules that can store the magnetic information permanently and not just fleetingly is a challenge, and it is even more difficult to arrange these molecules on a solid surface to build data storage carriers. To address the latter problem, an international team of researchers led by chemists from ETH Zurich has now developed a new method that offers numerous advantages over other approaches.

Christophe Copéret, a professor at the Laboratory of Inorganic Chemistry at ETH Zurich, and his team developed a molecule with a dysprosium atom at its centre - dysprosium is a metal belonging to the rare-earth elements. This atom is surrounded by a molecular scaffold that serves as a vehicle. The scientists also developed a method for depositing such molecules on the surface of silica nanoparticles and fusing them by annealing at 400 degrees Celsius. The molecular structure used as a vehicle disintegrates in the process, yielding nanoparticles with dysprosium atoms well-dispersed at their surface. The scientists showed that these atoms can be magnetised and maintain their magnetic information.

The magnetisation process currently only works at around minus 270 degrees Celsius - near absolute zero, and the magnetisation can be maintained for up to one and a half minute. The scientists are therefore looking for methods that will allow the magnetisation to be stabilised at higher temperatures and for longer periods of time. They are also looking for ways to fuse atoms to a flat surface instead of to nanoparticles.

One of the advantages of the new method is its simplicity. "Nanoparticles bonded with dysprosium can be made in any chemical laboratory. No cleanroom and complex equipment are required", stated Florian Allouche, a doctoral student in Christophe Copéret's group. In addition, the magnetisable nanoparticles can be stored at room temperature and re-utilized.

Other preparation methods include the direct deposition of individual atoms onto a surface, yet the materials obtained are only stable at very low temperatures mainly due to the agglomeration of these individual atoms. Alternatively, molecules with ideal magnetic properties can be deposited onto a surface, but this immobilization often negatively affects the structure and the magnetic properties of the final object.

For this research project, ETH scientists worked with colleagues from the Universities of Lyon and Rennes, Collège de France in Paris, Paul Scherrer Institute in Switzerland, and Berkeley National Laboratory in the USA.

Allouche F. et al. are the authors of " Magnetic Memory from Site Isolated Dy(III) on Silica Materials " published inACS Central Science 2017.
Source: ETH Zurich

Back to Table of contents

Primeur weekly 2017-04-03

Focus

Luxembourg capital of supercomputing in Europe ...

Quantum computing

Quantum communication: How to outwit noise ...

Rigetti Computing raises $64 million in Series A and B funding, led by Andreessen Horowitz and Vy Capital ...

Focus on Europe

HPC Summit Week 2017 in Barcelona to gather main HPC stakeholders in Europe ...

Six High Performance Computing centres in the UK to be officially launched ...

It is easier for a DNA knot ...

Prof. Dieter Kranzlmüller is new Chairman of the Board of Directors at Leibniz Supercomputing Centre ...

GW4 world-first ARM based production supercomputer launched at national exhibition in the UK ...

Middleware

New version of Univa Grid Engine 2x faster than Sun Grid Engine 6.2u5 ...

Huawei and Altair sign MoU to jointly pursue High-Performance Computing (HPC) opportunities and build industrial simulation Cloud solutions ...

Hardware

New HPC installation to deploy Asetek liquid cooling solution ...

HPE to acquire Nimble Storage to strengthen leadership in hybrid IT ...

New Supermicro rack scale design brings open management for on-demand Cloud scale data centres ...

Supermicro launches new Intel Optane SSD optimized platforms ...

GBP 3 million awarded to Oxford-led consortium for national machine learning computing facility ...

EPCC invests GB 2.4 million in Tier-2 Cirrus system ...

Eurotech continues to lead innovation in embedded and high-performance computing: New designs featuring 2nd generation Intel Xeon Phi and Intel Atom E39XX ...

Officials dedicate Ohio OSC's newest, most powerful supercomputer ...

USC's Information Sciences Institute tapped to produce computing chips technology ...

Applications

Supercomputer puts Colombia on fast track to designing new HIV drugs, science and engineering discovery ...

SDSC announces Annual Supercomputing & Data Science Workshop ...

IBM patents cognitive system to manage self-driving vehicles ...

Cryo-electron microscopy achieves unprecedented resolution using new computational methods ...

Psychologists enlist machine learning to help diagnose depression ...

A seismic mapping milestone ...

Information storage with a nanoscale twist ...

Nanomagnets for future data storage ...

Researchers shoot for success with simulations of laser pulse-material interactions ...

A system based on data science to predict student dropouts ...

The Cloud

Oracle unveils industry-first Cloud Converged Storage to help organisations bridge on-premises and Oracle Cloud storage ...