Navigation Links
Collaboration yields 'the right glasses' for observing mystery behavior in electrons
Date:12/13/2007

jected to relatively small changes in pressure or temperature.

Vanadium dioxide begins to transform itself from an insulator to a conductor when heated above 341 degrees Kelvin (about 154 degrees Fahrenheit or 68 degrees Celsius).

For decades scientists have puzzled over how this transformation to a fully metallic stateknown as Mott metal-insulator transitionoccurs. Balatsky, a Los Alamos condensed-matter theorist, believed, like many other scientists, that the transition begins when metallic puddles begin forming at sites of impurities or imperfections within the lattice. The puddles grow until they touch, and at that point the material becomes conductive, or superconductive.

We had evidence to believe that metallic puddles were forming in an inhomogenous manner within the material at the transition phase, but we had no way of proving it, said Balatsky. If you had the right glasses that could see something extremely small, you could see this process occurring.

The right glasses came in the form of a microscopic viewing technique known as near-field scanning optical microscopy, which has been used to inspect viruses and nano-transistors. The microscope sees infrared light reflecting off of a surface only 20-billionths of a meter (or 20 nanometers) wide. A single virus is less than 20 nanometers wide, while a typical human hair is about 100,000 nanometers wide.

Using this nanoscale viewer, the UCSD-LANL-Max Planck-ETRI team was able to watch metallic puddles form within vanadium oxide at the exact temperature where the Mott transition was expected to occur. These infrared nanoscope images have revealed for the first time a new type of metal phase existing only during the transition of the material from its insulating state to its conducting state.

The new findings will help researchers worldwide better describe and understand underlying physical laws of how charges propagate through correlated materials.


'/>"/>

Contact: James E. Rickman
jamesr@lanl.gov
505-665-9203
DOE/Los Alamos National Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Pharmion and MethylGene Announce Collaboration to Develop Sirtuin Inhibitors as Anti-Cancer Agents
2. InterCure and Omron Healthcare (UK) Ltd. Announce Marketing Collaboration for Hypertension Market in United Kingdom
3. Pfizer and Bristol-Myers Squibb Finalize Agreement for Worldwide Collaboration on Metabolic Disorders Program
4. ExonHit Therapeutics: Allergan and ExonHits First Collaboration Compound to Begin Human Clinical Trials
5. Dow AgroSciences and Exelixis Plant Sciences Announce Major Research Collaboration, Asset Purchase to Advance Gene Discovery and Validation
6. Baxter and Halozyme Announce Collaboration for Development of Subcutaneous GAMMAGARD LIQUID(TM) Administration Using Enhanze(TM) Technology
7. SGX Provides Update on BCR-ABL Collaboration
8. Isis Enters Broad Collaboration With Ortho-McNeil, Inc. for the Discovery, Development and Commercialization of Antisense Drugs to Treat Metabolic Diseases
9. Microbia and Forest Laboratories Announce Linaclotide Co-Development and Co-Marketing Collaboration
10. Adams Respiratory Therapeutics and Lipocine Enter into License and Collaboration Agreement
11. TorreyPines Therapeutics and Eisai Co., Ltd. Extend Genetics Discovery Collaboration for Alzheimers Disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/24/2014)... Long Island, New York (PRWEB) December 23, 2014 ... , and the Long Island Affiliate of ITRA Global, the ... economy’s slow but steady recovery. This is evidenced by ... and the strong stock market. Low energy costs have ... low. The only negative is the housing market remaining ...
(Date:12/24/2014)... The report expects global cell isolation ... It also provides a carefully analyzed data about the ... the market. , Full Copy of Report @ ... market for cell expansion will keep witnessing growth at ... growth to be driven by rapid technological advancements, government ...
(Date:12/24/2014)... 23, 2014 Vermillion, Inc. (Nasdaq:   ... disease, announced today that investors including Oracle Investment ... LLC and several Vermillion directors have agreed to ... Vermillion,s common stock and warrants to purchase unregistered ... placement.  Under the terms of ...
(Date:12/24/2014)... SARASOTA, Fla. , Dec. 23, 2014  Rock ... today that it has filed a Clinical Trial Application ... Medicines Healthcare products Regulatory Agency (MHRA) seeking regulatory approval ... its lead molecule, Anatabine Citrate. Contingent on ... to conduct a Phase I trial to assess the ...
Breaking Biology Technology:ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 2The Cell Expansion Market is Expected to Reach $14.8 billion by 2019 - New Research Report by MarketsandMarkets 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 4Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 5Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3
... WOODLANDS, Texas, Oct. 4 Lexicon,Pharmaceuticals, Inc. (Nasdaq: ... Lexicon,s president and chief executive officer, will present,at the ... California,on Thursday, October 11, 2007 at 11:00 a.m. Pacific ... be accessed on its,corporate website at http://www.lexpharma.com . ...
... In conjunction with,its third quarter 2007 earnings release (expected ... (NYSE: CVD ) is pleased to invite you to,listen ... over the Internet on Thursday, October 25 at 9:00 a.m. ... Webcast and Slide Presentation When: October 25, ...
... VRUS ) has entered into a working capital loan ... and conditions of,the agreement, Horizon will advance $10 million ... may receive a second loan of $10 million,by March ... by November 30, 2008,provided conditions precedent to making the ...
Cached Biology Technology:Lexicon Pharmaceuticals to Present at Bio InvestorForum 2Pharmasset Accesses up to $30 Million of Working Capital 2Pharmasset Accesses up to $30 Million of Working Capital 3
(Date:12/19/2014)... 2014  23andMe, Inc., the leading personal genetics company, ... fine-scale differences in genetic ancestry of individuals from across ... Since immigrants first arrived more than four hundred years ... served as a meeting place for peoples from different ... ongoing mixing of peoples with African, European, and American ...
(Date:12/17/2014)... 15, 2014 Research and Markets ... the "Samsung Galaxy S5 - Home Button ... their offering. http://photos.prnewswire.com/prnh/20130307/600769 ... sensing technology than the iPhone 5S, Samsung introduces ... its product. The Galaxy S5 home ...
(Date:12/17/2014)... NEW YORK , Dec. 15, 2014 /PRNewswire-USNewswire/ ... a Good Clinical Practices (GCP) audit to confirm ... Administration (FDA) regulations. This accomplishment enables HITLAB to ... trials utilizing the highest principles for patient safety ... to improve global healthcare access, quality, and delivery ...
Breaking Biology News(10 mins):23andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Samsung Galaxy S5 - Home Button Synaptics Fingerprint Sensor Technology Analysis 2HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2
... If grandma seems to forget things, will she end up ... few symptoms that may signal which 70-year-olds risk developing dementia. ... Academy at the University of Gothenburg, Sweden. Several of ... developing dementia do not seem to work any longer. The ...
... in Spanish . , DNA-Prokids ( http://www.dna-prokids.org ... using genetic identification of victims and their relatives, was officially ... (UGR) headquarters, in Spain. Traffic in human beings is ... beginning of the 21st century. According to data from the ...
... Iowa -- Researchers at Iowa State University have discovered ... plant growth. , Yanhai Yin, an assistant professor in ... a plant hormone called brassinosteroids. The hormone controls the ... major impact on how large the plant grows, says ...
Cached Biology News:Early identification of dementia increasingly difficult 2DNA-Prokids: Genetic identification against traffic in human beings 2ISU researcher identifies genetic pathway responsible for much of plant growth 2
...
Sheep polyclonal to Quinolone ( Abpromise for all tested applications). Antigen: Norfloxacin(N)conjugated to BSA...
Certified U.S. origin. Bovine Serum:, *Certified U.S. origin. Available raw, nonsterile filtered, or sterile filtered. , , *Sterility tested , , *Low Hemoglobin levels , , *Mycoplasma testing upon...
...
Biology Products: