Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > X-ray microscopy technique makes fluctuations inside of materials visible: Microscopic X-ray view

Experimental setup: The test object is moved with nanometer precision through the X-ray beam. The scattered X-rays are captured by a detector. The scattering images are then reconstructed to an image of the sample.
Experimental setup: The test object is moved with nanometer precision through the X-ray beam. The scattered X-rays are captured by a detector. The scattering images are then reconstructed to an image of the sample.

Abstract:
X-ray microscopy requires radiation of extremely high quality. In order to obtain sharp images instrument and sample must stay absolutely immobile even at the nanometer scale during the recording. Researchers at the Technische Universitaet Muenchen and the Paul Scherrer Institute in Villigen (Switzerland), have now developed a method that relaxes these hard restrictions. Even fluctuations in the material can be visualized. The renowned journal Nature now reports on their results.

X-ray microscopy technique makes fluctuations inside of materials visible: Microscopic X-ray view

Munich, Germany | Posted on February 6th, 2013

For more than 100 years radiography meant: don't move! In order to visualize nanostructures such as biological cells, the porous structure of cement or storage fields of magnetic disks, the experimentators had to avoid any kind of vibration of X-ray microscope and sample. In addition, only a small percentage fraction of the incoming X-ray radiation could be used. Using special filters, they had to select exactly the fraction with the right properties - for example, the right wavelength.

Contributions of different wavelengths separated

Pierre Thibault of the Technische Universitaet Muenchen and Andreas Menzel, scientist at the Paul Scherrer Institute (Villigen, Switzerland) have now developed an interpretation method that produces reliable images in spite of vibrations or fluctuations. The method is based on a technique called "ptychography", developed in the 1960s for electron microscopy. Thibault and Menzel's advancements now make it possible to distinguish effects originating from the contribution of different types of X-ray waves.

Fluctuations visualized

Probably the most significant result of the study is that it gives access to a whole class of objects that previously could hardly be investigated. "We now not only can compensate for the vibrations in the microscope," says Andreas Menzel. "We can even characterize fluctuations of the sample itself, even if they are much too fast to be seen with individual snapshots."

"We needed to convince ourselves that the images we produced did indeed reflect accurately the samples and their dynamics," says Pierre Thibault. "So we carried out computer simulations. They confirmed that effects of the instrument as well as of the sample itself, such as flows, switching events or mixed quantum states, can be characterized."

Microscopic view inside

The new method combines the characterization of dynamical states with high-resolution X-ray microscopy. One possible application is to analyze the changing magnetization of individual bits in magnetic storage media with high storage density. The interactions of such single magnetic bits or their thermal fluctuations, which ultimately determine the lifetime of magnetic data storage, could be visualized.

"In addition to its use in imaging," explains Pierre Thibault, "our analysis method also reveals a fundamental relationship to other disciplines: Microscopy and scientific disciplines such as quantum computing, previously regarded as independent, can benefit from each other here."

####

For more information, please click here

Contacts:
Andreas Battenberg

49-892-891-0510

Dr. Pierre Thibault

Technische Universität München

Physik-Department, Lehrstuhl für Angewandte Biophysik (E 17)
85747 Garching, Germany
Tel.: +49 89 289 14397

Copyright © Technische Universitaet Muenchen

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

Reconstructing state mixtures from diffraction measurements; Pierre Thibault & Andreas Menzel Nature, 7. February 2013, DOI: 10.1038/nature11806:

Related News Press

News and information

French Institutes IRT Nanoelec and CMP Team up to Offer World’s First Service for Post-process 3D Technologies on Multi-Project-Wafer March 5th, 2015

The George Washington University Opens Science and Engineering Hall, Largest Building of Its Kind in D.C.: Building Represents Significant Investment in Research Programs and Facilities; Commitment to Solve Global Problems, Improve Lives of Millions March 5th, 2015

Anousheh Ansari Wins the National Space Society's Space Pioneer Award for "Service to the Space Community" March 5th, 2015

Enhanced Graphene Components for Next Generation Racing Yacht March 5th, 2015

Laboratories

American Chemical Society Presidential Symposia: nanoscience, international chemistry March 5th, 2015

New research could lead to more efficient electrical energy storage March 4th, 2015

Researchers turn unzipped nanotubes into possible alternative for platinum: Aerogel catalyst shows promise for fuel cells March 2nd, 2015

Imaging

Forbidden quantum leaps possible with high-res spectroscopy March 2nd, 2015

International research partnership tricks the light fantastic March 2nd, 2015

Important step towards quantum computing: Metals at atomic scale March 2nd, 2015

Memory Technology

Magnetic vortices in nanodisks reveal information: Researchers from Dresden and Jülich use microwaves to read out information from smallest storage devices March 4th, 2015

The taming of magnetic vortices: Unified theory for skyrmion-materials March 3rd, 2015

Insight into inner magnetic layers: Measurements at BESSY II have shown how spin filters forming within magnetic sandwiches influence tunnel magnetoresistance -- results that can help in designing spintronic component- February 17th, 2015

Dance of the nanovortices February 2nd, 2015

Quantum Computing

Strength in numbers: Researchers develop the first-ever quantum device that detects and corrects its own errors March 4th, 2015

Forbidden quantum leaps possible with high-res spectroscopy March 2nd, 2015

Important step towards quantum computing: Metals at atomic scale March 2nd, 2015

Waterloo invention advances quantum computing research: New device, which will be used in labs around the world to develop quantum technologies, produces fragile entangled photons in a more efficient way February 16th, 2015

Discoveries

Enhanced Graphene Components for Next Generation Racing Yacht March 5th, 2015

American Chemical Society Presidential Symposia: nanoscience, international chemistry March 5th, 2015

Magnetic vortices in nanodisks reveal information: Researchers from Dresden and Jülich use microwaves to read out information from smallest storage devices March 4th, 2015

CiQUS researchers obtain high-quality perovskites over large areas by a chemical method March 4th, 2015

Announcements

The George Washington University Opens Science and Engineering Hall, Largest Building of Its Kind in D.C.: Building Represents Significant Investment in Research Programs and Facilities; Commitment to Solve Global Problems, Improve Lives of Millions March 5th, 2015

Anousheh Ansari Wins the National Space Society's Space Pioneer Award for "Service to the Space Community" March 5th, 2015

Enhanced Graphene Components for Next Generation Racing Yacht March 5th, 2015

Get ready for NanoDays! March 5th, 2015

Tools

Keysight Technologies Shifts to Direct Sales of High-Performance Products in North America March 3rd, 2015

Forbidden quantum leaps possible with high-res spectroscopy March 2nd, 2015

International research partnership tricks the light fantastic March 2nd, 2015

Important step towards quantum computing: Metals at atomic scale March 2nd, 2015

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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE