Navigation Links
Princeton scientists find unusual electrons that go with the flow
Date:7/14/2010

On a quest to discover new states of matter, a team of Princeton University scientists has found that electrons on the surface of specific materials act like miniature superheroes, relentlessly dodging the cliff-like obstacles of imperfect microsurfaces, sometimes moving straight through barriers.

The Princeton work represents the first time such behavior of electrons has been tracked and recorded, and hints at the possibilities of speeding up integrated circuits that process information by flow of electrons between different devices. The new materials potentially could break the bottleneck that occurs when metallic interconnects get so small that even the tiniest atomic imperfection hinders their performance.

Physics professor Ali Yazdani and his team observed the extraordinary physics behavior in a "topological surface state" on a microscopic wedge of the metal antimony. The work is reported in the July 15 issue of Nature.

Normally, electron flow in materials is impeded by imperfections -- seemingly slight edges and rifts act like cliffs and crevasses in this microscopic world, blocking electrons in their path. Recent theories, however, predict that electrons on the surface of some compounds containing elements such as antimony can be immune to such disruptions in their flow. The connectivity in their flow, Yazdani said, stems from a special form of electron wave that seemingly alters the pattern of flow around any imperfection.

Many of the "topological" materials, such as antimony, have been important in the world economy; however, their unusual surface conduction previously had not been examined. Part of the challenge had been the difficulty in measuring the flow of electrons just at the surface, a task that was accomplished by the Princeton group using a specialized microscopy technique that enables precise visualization of electrons at the surface of materials.

"Material imperfections just cannot
'/>"/>

Contact: Kitta MacPherson
kittamac@princeton.edu
609-258-5729
Princeton University
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Princeton scientists find an equation for materials innovation
2. Twelve Women Scientists Announced as Winners of Elsevier Foundation TWOWS Awards
3. Scientists strive to replace silicon with graphene on nanocircuitry
4. Prestigious International Champalimaud Vision Award to US Scientists
5. Scientists Give the Go-Ahead for Private Storage of Stem Cells From Umbilical Cord Blood
6. Scientists create artificial mini black hole
7. Hat-trick for University of Montreal scientists
8. Scientists boot up a bacterial cell with a synthetic genome
9. Scientists ID bacterial genes that improve plant growth
10. Nano parfait a treat for scientists
11. Berkeley Lab scientists create molecular paper
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Princeton scientists find unusual electrons that go with the flow
(Date:5/28/2015)... NORTH BRUNSWICK, N.J. , May 28, 2015 ... that PDS0101, a cancer immunotherapy treatment targeting HPV-16, ... patients.  Currently, pre-cervical cancer is ... could offer a simple and effective non-surgical alternative. ... body,s defense mechanisms (T-cells) to recognize, target, and ...
(Date:5/28/2015)... Md. , May 28, 2015  GenVec, Inc. ... and CEO, Douglas J. Swirsky , will present ... Conference at 11 a.m. EDT on Thursday, June 4, ... of Mr. Swirsky,s presentation will be available at the ... be available on GenVec,s website.  To access, visit ...
(Date:5/28/2015)... 28, 2015 Glenn Keet, CEO of ... Landscape of EMR/EHR Clinical Data Integration with EDC Systems ... in Washington, DC on June 14th-18th. , During the ... EMR/EHR systems with EDC, and will examine the value ... eSource and electronic health records/electronic medical records integration. ...
(Date:5/28/2015)... 28, 2015 American Process Inc. ... Ridge, TN) recently signed a joint agreement ... plastic resins using nanocellulose, a rapidly emerging high ... printing is the limited number of feedstock materials ... strength to printed parts for load bearing applications. ...
Breaking Biology Technology:PDS Biotechnology reports positive Phase I clinical trial results in proprietary HPV-Cancer Immunotherapy 2GenVec To Present At The Jefferies Healthcare Conference 2Clinovo Presents at the DIA 2015 51st Annual Meeting in Washington, DC on June 14th-18th 2American Process Inc. Announces Partnership with Oak Ridge National Laboratory to Make 3D Printing Plastic Resins Stronger and More Sustainable 2American Process Inc. Announces Partnership with Oak Ridge National Laboratory to Make 3D Printing Plastic Resins Stronger and More Sustainable 3
... , , IMAP APPLICATION ... By Liz Gaudet, Ph.D., Joyce Itatani, Francisco, Ramirez and Annegret Boge, ... , INTRODUCTION ... drug discovery. Many suppliers offer a profiling, ...
... , , IONWORKS HT APPLICATION NOTE #4 , ... Chen, Ph.D., Jinfang Liao, Ph.D., , Jeff Quast, Andrew Wittel, ... Corporation, 3280 Whipple Road, Union City, CA 94587., INTRODUCTION ... largely untapped portion of the potential drug, ...
... , ... , ... Application Guide ........................................................................................................................2 , ... ................................................................................................................................2 , ...
Cached Biology Technology:Setting up a kinase profiler with IMAP 2Setting up a kinase profiler with IMAP 3Setting up a kinase profiler with IMAP 4Setting up a kinase profiler with IMAP 5Setting up a kinase profiler with IMAP 6Setting up a kinase profiler with IMAP 7Setting up a kinase profiler with IMAP 8Setting up a kinase profiler with IMAP 9Setting up a kinase profiler with IMAP 10Setting up a kinase profiler with IMAP 11Setting up a kinase profiler with IMAP 12Setting up a kinase profiler with IMAP 13Setting up a kinase profiler with IMAP 14Setting up a kinase profiler with IMAP 15Setting up a kinase profiler with IMAP 16Setting up a kinase profiler with IMAP 17Setting up a kinase profiler with IMAP 18Setting up a kinase profiler with IMAP 19Setting up a kinase profiler with IMAP 20Setting up a kinase profiler with IMAP 21Setting up a kinase profiler with IMAP 22Setting up a kinase profiler with IMAP 23Setting up a kinase profiler with IMAP 24Setting up a kinase profiler with IMAP 25Setting up a kinase profiler with IMAP 26Setting up a kinase profiler with IMAP 27Setting up a kinase profiler with IMAP 28Setting up a kinase profiler with IMAP 29Setting up a kinase profiler with IMAP 30Setting up a kinase profiler with IMAP 31Rapid hit confirmation and early hERG liability testing using the IonWorks HT system 2Rapid hit confirmation and early hERG liability testing using the IonWorks HT system 3Rapid hit confirmation and early hERG liability testing using the IonWorks HT system 4Rapid hit confirmation and early hERG liability testing using the IonWorks HT system 5Rapid hit confirmation and early hERG liability testing using the IonWorks HT system 6
(Date:5/26/2015)... -- Research and Markets ( http://www.researchandmarkets.com/research/p2kc6z/saudi_arabia ... "Saudi Arabia Biometric Systems Market Forecast and Opportunities, ... http://photos.prnewswire.com/prnh/20130307/600769) , ,The biometric systems market in ... grow at over 22% CAGR through 2020 ... surging demand for better biometric technologies in the ...
(Date:5/22/2015)... 22, 2015  NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" ... be ending its promotional pricing and making the Wocket generally ... Laurence Savin , Head of Marketing said, "We,ve extended the ... the end of May. To get your wocket at this ... open the store on June 1, you,ll receive a unique ...
(Date:5/21/2015)... , May 21, 2015 ... "Thermal Imaging Market by Solutions (Hardware, Software, Services), by ... Automotive & others), by End-Users (Military & Defense ... by MarketsandMarkets, Thermal Imaging Market is expected to ... Million by 2020, at a Compound Annual Growth ...
Breaking Biology News(10 mins):Saudi Arabia Biometric Systems Market Forecast and Opportunities, 2020 with Morpho Safran, ZK Technlogy, and Suprema Dominating 2NXT-ID, Inc Announces Retail Price For Wocket Smart Wallet And Extends Discounted Promotional Price Till End Of May 2NXT-ID, Inc Announces Retail Price For Wocket Smart Wallet And Extends Discounted Promotional Price Till End Of May 3Thermal Imaging Market Worth $9,998.9 Million by 2020 2Thermal Imaging Market Worth $9,998.9 Million by 2020 3Thermal Imaging Market Worth $9,998.9 Million by 2020 4
... Center have identified how nanoparticles from diesel exhaust damage lung ... for people susceptible to airway disease. The scientists ... the genetic make-up of the affected individual. "We ... in polluted areas and why others don,t," said lead author ...
... young people engage in, has associated adverse health risks ... controlling overall alcohol usage, states an editorial in ... link only) http://www.cmaj.ca/embargo/cmaj110029.pdf . "Given the many ... we need a national strategy for controlling overall alcohol ...
... eating a big breakfast help weight loss or is ... confusing but new research published in BioMed Central,s open ... through these apparently contradictory reports. Dr Volker Schusdziarra, ... study on over 300 people who were asked to ...
Cached Biology News:Findings on pollution damage to human airways could yield new therapies 2
...
More cell-permeant than acridine orange....
Anti-rat Ig HRP detection kit...
One bottle containing 30 ml of protein solution and 0.1% sodium azide....
Biology Products: