Navigation Links
A deeper look at interfaces
Date:1/15/2014

"The interface is the device," Nobel laureate Herbert Kroemer famously observed, referring to the remarkable properties to be found at the junctures where layers of different materials meet. In today's burgeoning world of nanotechnology, the interfaces between layers of metal oxides are becoming increasingly prominent, with applications in such high-tech favorites as spintronics, high-temperature superconductors, ferroelectrics and multiferroics. Realizing the vast potential of these metal oxide interfaces, especially those buried in subsurface layers, will require detailed knowledge of their electronic structure. A new technique from an international team of researchers working at Berkeley Lab's Advanced Light Source (ALS) promises to deliver the goods.

In a study led by Charles Fadley, a physicist who holds joint appointments with Berkeley Lab's Materials Sciences Division and the University of California Davis, where he is a Distinguished Professor of Physics, the team combined two well-established techniques for studying electronic structure in crystalline materials into a new technique that is optimized for examining electronic properties at subsurface interfaces. They call this new technique SWARPES, for Standing Wave Angle-Resolved Photoemission Spectroscopy.

"SWARPES allows us for the first time to selectively study buried interfaces with either soft or hard x-rays," Fadley says. "The technique can be applied to any multilayer prototype device structure in spintronics, strongly correlated/high-TC superconductors, or semiconductor electronics. The only limitations are that the sample has to have a high degree of crystalline order, and has to be grown on a nanoscale multilayer mirror suitable for generating an x-ray standing wave."

As the name indicates, SWARPES combines the use of standing waves of x-rays with ARPES, the technique of choice for studying electronic structure. A standing wave is a vibrational pattern created whe
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A deeper look at interfaces
(Date:8/29/2014)... Boston, MA (PRWEB) August 29, 2014 Due ... (FRC) last week, the Adult Stem Cell Technology Center, ... donations to support stem cell therapy research that might benefit ... adult stem cells for new stem cell technologies and therapeutic ... ALS Ice Bucket Challenge donors who wish not ...
(Date:8/29/2014)... MA, San Antonio, TX (PRWEB) August 29, 2014 ... ISO 9001:2008 and ISO 13485:2003 certified, GAMP® 5 ... has been awarded an international Phase II clinical ... with non-Hodgkin’s lymphoma. , Throughout this trial, Intrinsic ... including, but not limited to, protocol and charter ...
(Date:8/28/2014)... CA (PRWEB) August 28, 2014 Best ... products for the food processing industry, is asking industry ... side-by side comparison of the E2 soap they’re currently ... Sanitizing Foam Soap . Hand hygiene is critical ... the food processing environment. Six key criteria are identified ...
(Date:8/28/2014)... MA (PRWEB) August 28, 2014 “This kit ... test to screen from 0 to 150 ppb,” said Mark ... is a significant benefit to plant owners and USDA-GIPSA inspection ... and other commodities. Testing can take place in a matter ... only can the plant test the feed and grain before ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2
... Information technology professionals in Wisconsin announced on ... of Wisconsin, a forum for information exchange and ... $14B in revenue and hires more than 55,000 employees, ... founding members, of which approximately a third are IT ...
... In our last two columns, we looked at both the ... the growth of Specialty Pharma particularly in the U.S. market. ... drugs (drugs that sell $1 billion or more) but the ... year) and the mega-blockbuster drugs (the one drug, Pfizers Lipitor ...
... software developers will have the chance to combine their ... first annual Games+Learning+Society conference at the Monona ... by Games And Professional Practice Simulations, a joint project ... a group of instructors at the UW-Madison School of ...
Cached Biology Technology:Statewide IT association will address IT issues and priorities 2Statewide IT association will address IT issues and priorities 3Line between big pharma, big biotech continues to blur 2Line between big pharma, big biotech continues to blur 3Education conference to draw together games researchers 2
(Date:8/29/2014)... available in German . ... the natural nitrogen cycle on Earth and in biological ... thought to depend on nitrite as their source of ... Daims, a microbiologist at the University of Vienna, has ... an alternative source of energy. The oxidation of hydrogen ...
(Date:8/29/2014)... - In a cell,s nucleus, chromosomal DNA is ... an amalgam biologists call chromatin. Until about two ... "sidekick," the mere packing material around which the ... have developed a greater appreciation for how DNA/histone ... from multiple research institutions studying the sequence of ...
(Date:8/28/2014)... Invasives is now available from the Lady Bird Johnson ... for identifying harmful non-native plant, insect and other invasive ... States cause about $137 billion in economic and other ... kill native plants and more. , "By having streamlined ... invasive species occur, we,re more likely to catch these ...
Breaking Biology News(10 mins):Hydrogen powers important nitrogen-transforming bacteria 2Hydrogen powers important nitrogen-transforming bacteria 3'K-to-M' histone mutations: How repressing the repressors may drive tissue-specific cancers 2'K-to-M' histone mutations: How repressing the repressors may drive tissue-specific cancers 3Mobile app makes ID of harmful plants, insects in Texas a snap 2
... pan out. Neither did two other potential anti-aging agents. ... is now a front- runner in ongoing animal experiments ... inflammation, cancer and other destructive processes, can boost the ... meeting of the American Aging Association, University of Michigan ...
... discovery of how some abnormal cells can avoid a ... and repairing the damage, is giving investigators at St. ... cancer cells use to survive and thrive. , The ... have cheated death once by disabling the main suicide ...
... (DPI) fisheries scientists are investigating ways to boost the ... by anglers. , Some guidelines designed to improve fish ... trevally, mulloway, sand whiting, yellowfin bream and dusky flathead. ... and funded by NSW DPI and the Recreational Fishing ...
Cached Biology News:Agent slows aging in mice 2Cells re-energize to come back from the brink of death 2Releasing fish for the future 2
NORMAL DONOR DONKEY SERUM...
... EPS 301 Power Supply, 1. ... maximum.Constant voltage or constant current modes.Single-unit ... precision and reproducibility.Suitable for submarine, mini ... as well as semidry and mini ...
B3-1...
Human CCL26/Eotaxin-3 MAb (Clone 115002)...
Biology Products: