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Primeur weekly 2017-11-13

Focus

Despite EuroHPC programme Europe losing ground in the TOP500 of the world's fastest supercomputers ...

Quantum computing

IBM announces advances to IBM quantum systems and ecosystem ...

Quantum computing on the move ...

Focus on Europe

Asetek announces Acer as new data centre OEM partner ...

It is time to clarify who funds what research in Europe, says Science Europe ...

European Commission officially releases European Open Science Cloud Declaration ...

The complete ISC 2018 contributed programme is now open for submission ...

PRACE to hold Summer of HPC 2017 Awards Ceremony at IT4Innovations ...

Atos revolutionizes enterprise AI with next generation servers ...

First modular supercomputer worldwide starts operation at the Research Center Jülich ...

Middleware

University of North Texas implements Bright Computing technology for efficient cluster management ...

Inspur launches ON5263M5, the world's first OCP-accepted compute node based on Intel Xeon Scalable processor family ...

Hardware

Oklahoma State University selects Advanced Clustering to build new HPC cluster ...

Cybermedia Center, Osaka University adopts Asetek liquid cooling for new computer system OCTOPUS ...

Solarflare showcases software defined Ethernet NICS for servers running on Qualcomm Centriq 2400 Arm-based processors ...

CoolIT Systems launches Rack DCLC AHx10 Heat Exchange Module ...

DDN partners with Hewlett Packard Enterprise to deliver unmatched HPC storage solutions ...

CoolIT Systems launches rack DCLC AHx2 Heat Exchange Module ...

DDN's massively scalable storage empowers Pawsey Supercomputing Centre to speed scientific discoveries that reveal the secrets of the universe ...

Fujitsu receives order for supercomputer system from the Institute of Fluid Science at Tohoku University ...

Fujitsu launches new PRIMEQUEST series and boosts processing performance by up to 50% ...

Cavium ThunderX2 motherboard specification for Microsoft's project Olympus contributed to the Open Compute Project ...

University of Michigan partners with Cavium on Big Data computing platform for University of Michigan researchers ...

Mellanox announces Innova-2 FPGA-based programmable adapter family to power next generation of Cloud, security, Big Data and Deep Learning platforms ...

Mellanox announces availability of world-leading Spectrum-based SN2010 data centre Ethernet switch system for storage and hyperconverged infrastructures ...

Mellanox interconnect solutions boost Qualcomm Arm-based data centre platforms with Mellanox ConnectX-5 ...

Mellanox announces world's most scalable switch platforms based on HDR 200G InfiniBand quantum switch technology ...

Atos to leverage Mellanox HDR InfiniBand for unmatched application performance and scalability ...

Mellanox InfiniBand to accelerate Japan's fastest supercomputer for Artificial Intelligence applications ...

Mellanox announces first major production deployment of Linux kernel-based Open Ethernet switch ...

LRZ puts into operation CoolMUC-3, a highly energy-efficient many-core cluster ...

WekaIO partners with Hewlett Packard Enterprise to develop all-flash storage for HPC and AI ...

CoolIT Systems showcases newest data centre liquid cooling innovations for OEM and enterprise customers at SC17 ...

Cray adds Arm-based ThunderX2 processors ito its Cray XC50 supercomputer ...

New Cray storage solutions address key customer needs for improved productivity and unparalleled data access ...

Supermicro unveils new HPC solutions at SC17 ...

Supermicro showcases industry's most advanced and optimized NVIDIA GPU systems at SC17 ...

NASA selects Supermicro to expand advanced computing and data analytics used to study the Earth, solar system and universe ...

Applications

New Cray Artificial Intelligence initiatives to advance Deep Learning for science and enterprise ...

Cosmos code helps probe space oddities ...

Research could 'untangle' vexing problem in computer-simulation technology ...

'Perfectly frustrated' metal provides possible path to superconductivity ...

DARPA awards Georgia Tech energy-efficient high-performance computing contract ...

Scientists create cosmic sounds of Voyager 1 ...

Need entangled atoms? Get 'Em FAST! with NIST's new patent-pending method ...

TOP500

China pulls ahead of U.S. in latest TOP500 list of the worlds' fastest supercomputers ...

TACC tech to shine at SC17 ...

The Cloud

Qualcomm Datacenter Technologies announces commercial shipment of Qualcomm Centriq 2400, the world's first 10nm server processor and highest performance Arm-based server processor family ever designed ...

'Perfectly frustrated' metal provides possible path to superconductivity

9 Nov 2017 Ames - The U.S. Department of Energy's Ames Laboratory has discovered and described the existence of a unique disordered electron spin state in a metal that may provide a unique pathway to finding and studying frustrated magnets.

Condensed matter physicists use the term "frustrated" to describe a kind of magnet in which the spins fail to align into stable magnetic order. In perfectly frustrated magnets called spin liquids, the disordered magnetism of these materials persists even at very low temperatures, and their unique properties are of interest in the development of quantum computing and high-temperature superconductivity.

The materials investigated to search for this perfectly frustrated magnetic state are typically insulators. But Ames Laboratory researchers were able to define a "perfectly frustrated" state in a metallic material, CaCo1.86As2.

"Perfectly frustrated systems, ones that really cannot resolve their magnetic states, are difficult to find in the first place, but even more so in a metal", stated Rob McQueeney, scientist at Ames Laboratory.

In insulating magnets, the interactions between spins that lead to frustration are set by the crystal structure of the lattice, and are relatively immutable. The discovery of this nearly perfectly frustrated metal provides a new avenue for tinkering with the magnetic interactions to achieve perfect frustration.

"Here, we have a little knob that we can tune. We know that some of these interactions that lead to frustration are mediated by conduction electrons, and we can tune a number of those very accurately - maybe you get a superconductor, maybe some other novel quantum state. There's a lot of promise there."

The research is further discussed in the paper "Effective One-Dimensional Coupling in the Highly Frustrated Square-Lattice Itinerant Magnet CaCo2-yAs2", authored by A. Sapkota, B.G. Ueland, V.K. Anand, N.S. Sangeetha, D.L. Abernathy, M.B. Stone J.L. Niedziela, D.C. Johnston, A. Kreyssig, A.I. Goldman, and R.J. McQueeney, and published inPhysical Review Letters.

This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by Oak Ridge National Laboratory.
Source: DOE/Ames Laboratory

Back to Table of contents

Primeur weekly 2017-11-13

Focus

Despite EuroHPC programme Europe losing ground in the TOP500 of the world's fastest supercomputers ...

Quantum computing

IBM announces advances to IBM quantum systems and ecosystem ...

Quantum computing on the move ...

Focus on Europe

Asetek announces Acer as new data centre OEM partner ...

It is time to clarify who funds what research in Europe, says Science Europe ...

European Commission officially releases European Open Science Cloud Declaration ...

The complete ISC 2018 contributed programme is now open for submission ...

PRACE to hold Summer of HPC 2017 Awards Ceremony at IT4Innovations ...

Atos revolutionizes enterprise AI with next generation servers ...

First modular supercomputer worldwide starts operation at the Research Center Jülich ...

Middleware

University of North Texas implements Bright Computing technology for efficient cluster management ...

Inspur launches ON5263M5, the world's first OCP-accepted compute node based on Intel Xeon Scalable processor family ...

Hardware

Oklahoma State University selects Advanced Clustering to build new HPC cluster ...

Cybermedia Center, Osaka University adopts Asetek liquid cooling for new computer system OCTOPUS ...

Solarflare showcases software defined Ethernet NICS for servers running on Qualcomm Centriq 2400 Arm-based processors ...

CoolIT Systems launches Rack DCLC AHx10 Heat Exchange Module ...

DDN partners with Hewlett Packard Enterprise to deliver unmatched HPC storage solutions ...

CoolIT Systems launches rack DCLC AHx2 Heat Exchange Module ...

DDN's massively scalable storage empowers Pawsey Supercomputing Centre to speed scientific discoveries that reveal the secrets of the universe ...

Fujitsu receives order for supercomputer system from the Institute of Fluid Science at Tohoku University ...

Fujitsu launches new PRIMEQUEST series and boosts processing performance by up to 50% ...

Cavium ThunderX2 motherboard specification for Microsoft's project Olympus contributed to the Open Compute Project ...

University of Michigan partners with Cavium on Big Data computing platform for University of Michigan researchers ...

Mellanox announces Innova-2 FPGA-based programmable adapter family to power next generation of Cloud, security, Big Data and Deep Learning platforms ...

Mellanox announces availability of world-leading Spectrum-based SN2010 data centre Ethernet switch system for storage and hyperconverged infrastructures ...

Mellanox interconnect solutions boost Qualcomm Arm-based data centre platforms with Mellanox ConnectX-5 ...

Mellanox announces world's most scalable switch platforms based on HDR 200G InfiniBand quantum switch technology ...

Atos to leverage Mellanox HDR InfiniBand for unmatched application performance and scalability ...

Mellanox InfiniBand to accelerate Japan's fastest supercomputer for Artificial Intelligence applications ...

Mellanox announces first major production deployment of Linux kernel-based Open Ethernet switch ...

LRZ puts into operation CoolMUC-3, a highly energy-efficient many-core cluster ...

WekaIO partners with Hewlett Packard Enterprise to develop all-flash storage for HPC and AI ...

CoolIT Systems showcases newest data centre liquid cooling innovations for OEM and enterprise customers at SC17 ...

Cray adds Arm-based ThunderX2 processors ito its Cray XC50 supercomputer ...

New Cray storage solutions address key customer needs for improved productivity and unparalleled data access ...

Supermicro unveils new HPC solutions at SC17 ...

Supermicro showcases industry's most advanced and optimized NVIDIA GPU systems at SC17 ...

NASA selects Supermicro to expand advanced computing and data analytics used to study the Earth, solar system and universe ...

Applications

New Cray Artificial Intelligence initiatives to advance Deep Learning for science and enterprise ...

Cosmos code helps probe space oddities ...

Research could 'untangle' vexing problem in computer-simulation technology ...

'Perfectly frustrated' metal provides possible path to superconductivity ...

DARPA awards Georgia Tech energy-efficient high-performance computing contract ...

Scientists create cosmic sounds of Voyager 1 ...

Need entangled atoms? Get 'Em FAST! with NIST's new patent-pending method ...

TOP500

China pulls ahead of U.S. in latest TOP500 list of the worlds' fastest supercomputers ...

TACC tech to shine at SC17 ...

The Cloud

Qualcomm Datacenter Technologies announces commercial shipment of Qualcomm Centriq 2400, the world's first 10nm server processor and highest performance Arm-based server processor family ever designed ...