Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Quantum cocktail provides insights on memory control: Experiments based on atoms in a shaken artificial crystal offer insight that might help in the development of future data-storage devices

Experiments in which atoms were immersed in a shaken crystal made of light provide novel insight that might be helpful to understand the fundamental behavior of magnetic storage devices.

CREDIT
Michael Messer, ETH Zurich
Experiments in which atoms were immersed in a shaken crystal made of light provide novel insight that might be helpful to understand the fundamental behavior of magnetic storage devices. CREDIT Michael Messer, ETH Zurich

Abstract:
The speed of writing and reading out magnetic information from storage devices is limited by the time that it takes to manipulate the data carrier. To speed up these processes, researchers have recently started to explore the use of ultrashort laser pulses that can switch magnetic domains in solid-state materials. This route proved to be promising, but the underlying physical mechanisms remain poorly understood. This is largely due the complexity of the magnetic materials involved, in which a large number of magnetic entities interact with one another. Such so-called quantum many-body systems are notoriously difficult to study.

Quantum cocktail provides insights on memory control: Experiments based on atoms in a shaken artificial crystal offer insight that might help in the development of future data-storage devices

Zurich, Switzerland | Posted on January 26th, 2018

Frederik Görg and his colleagues in the group of Prof. Tilman Esslinger in the Department of Physics at ETH Zurich (Switzerland) have now used an alternative approach to obtain fresh insight into the physics at play in these systems, as they report in a publication that is published today in the journal Nature.

Görg and his co-workers simulated magnetic materials using electrically neutral (but magnetic) atoms that they trapped in an artificial crystal made of light. Even if this system is very different from the storage materials they emulate, both are governed by similar basic physical principles. In contrast to a solid-state environment, however, many unwanted effects resulting for example from impurities in the material are absent and all key parameters of the system can be finely tuned. Exploiting this reduction of complexity and degree of control, the team was able to monitor the microscopic processes in their quantum many-body system and to identify ways to enhance and manipulate the magnetic order in their system.

Most importantly, the ETH physicists demonstrated that by controlled shaking of the crystal in which the atoms reside, they could switch between two forms of magnetic order, known as anti-ferromagnetic and ferromagnetic ordering -- an important process for data storage. The fundamental understanding gained from these experiments should therefore help to identify and understand materials that might serve as the basis for the next generation of data-storage media.

####

For more information, please click here

Contacts:
Andreas Trabesinger

Copyright © ETH Zurich

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 News Press

News and information

Camouflaged nanoparticles used to deliver killer protein to cancer June 17th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

Nickel ferrite promotes capacity and cycle stability of lithium-sulfur battery June 13th, 2018

Quantum Physics

Making quantum puddles: Physicists discover how to create the thinnest liquid films ever June 13th, 2018

Evidence for a new property of quantum matter revealed: Electrical dipole activity detected in a quantum material unlike any other tested June 11th, 2018

Detecting the birth and death of a phonon June 7th, 2018

Magnetism

Piezomagnetic material changes magnetic properties when stretched March 22nd, 2018

Unexpected effect could lead to lower-power memory, computing devices March 17th, 2018

Oxford Instruments announces Dr Kate Ross as winner of the 2018 Lee Osheroff Richardson Science Prize for North and South America February 20th, 2018

Fast-spinning spheres show nanoscale systems' secrets: Rice University lab demonstrates energetic properties of colloids in spinning magnetic field February 7th, 2018

Govt.-Legislation/Regulation/Funding/Policy

Camouflaged nanoparticles used to deliver killer protein to cancer June 17th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

New optical sensor can determine if molecules are left or right 'handed' June 13th, 2018

Possible Futures

Camouflaged nanoparticles used to deliver killer protein to cancer June 17th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

Memory Technology

Tunable diamond string may hold key to quantum memory: A process similar to guitar tuning improves storage time of quantum memory May 24th, 2018

A powerful laser breakthrough: Lehigh research team demonstrates terahertz semiconductor laser with record-high output power May 2nd, 2018

Researchers develop nanoparticle films for high-density data storage: April 3rd, 2018

Design approach developed for important new catalysts for energy conversion and storage: New method could aid in design of pharmaceuticals and optical and data storage materials March 21st, 2018

Discoveries

Camouflaged nanoparticles used to deliver killer protein to cancer June 17th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

Announcements

Camouflaged nanoparticles used to deliver killer protein to cancer June 17th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Camouflaged nanoparticles used to deliver killer protein to cancer June 17th, 2018

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

Quantum nanoscience

Making quantum puddles: Physicists discover how to create the thinnest liquid films ever June 13th, 2018

Detecting the birth and death of a phonon June 7th, 2018

Quantum Interference May Be Key to Smaller Insulators: Breakthrough could jumpstart further miniaturization of transistors June 6th, 2018

Nanoscale measurements 100x more precise, thanks to improved two-photon technique May 8th, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project