Navigation Links
UCLA Engineering advance with new nanomaterials good news for next-generation electronic devices
Date:2/14/2011

In recent years, topological insulators have become one of the hottest topics in physics. These new materials act as both insulators and conductors, with their interior preventing the flow of electrical currents while their edges or surfaces allow the movement of a charge.

Perhaps most importantly, the surfaces of topological insulators enable the transport of spin-polarized electrons while preventing the "scattering" typically associated with power consumption, in which electrons deviate from their trajectory, resulting in dissipation.

Because of such characteristics, these materials hold great potential for use in future transistors, memory devices and magnetic sensors that are highly energy efficient and require less power.

In a study published Feb. 13 in Nature Nanotechnology, researchers from UCLA's Henry Samueli School of Engineering and Applied Science and from the materials division of Australia's University of Queensland show the promise of surface-conduction channels in topological insulator nanoribbons made of bismuth telluride and demonstrate that surface states in these nanoribbons are "tunable" able to be turned on and off depending on the position of the Fermi level.

"Our finding enables a variety of opportunities in building potential new-generation, low-dissipation nanoelectronic and spintronic devices, from magnetic sensing to storage," said Kang L. Wang, the Raytheon Professor of Electrical Engineering at UCLA Engineering, whose team carried out the research.

Bismuth telluride is well known as a thermoelectric material and has also been predicted to be a three-dimensional topological insulator with robust and unique surface states. Recent experiments with bismuth telluride bulk materials have also suggested two-dimensional conduction channels originating from the surface states. But it has been a great challenge to modify surface conduction, because of dominant bulk contribution d
'/>"/>

Contact: Wileen Wong Kromhout
wwkromhout@support.ucla.edu
310-206-0540
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Genetic Engineering & Biotechnology News reports on growing role of molecular diagnostics
2. US Senate confirms Clemson University engineering Dean Esin Gulari to National Science Board
3. University success at national engineering awards
4. NJIT professor finds engineering technique to identify disease-causing genes
5. MIT: Mending broken hearts with tissue engineering
6. Stanley to Continue Biometrics In-Service Engineering Support for U.S. Army
7. Genetic Engineering & Biotechnology News reports on the trend toward predictive toxicogenomics
8. Engineering algae to make fuel instead of sugar
9. NTU undergrad is first Singapore champion of an internationally acclaimed engineering competition
10. Developer of advanced computing memory, father of biochemical engineering, and innovative engineering educators win highest engineering honors of 2009
11. Stevens receives $25,000 grant from the Engineering Information Foundation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/17/2015)... Minn. , March 17, 2015 ... technology company specializing in clinical study management systems, ... be in attendance at ARENA,s Outsourcing in Clinical ... NC.  This event provides an excellent forum for ... easy-to-use, flexible and affordable software-as-a-service (SaaS) eClinical technology ...
(Date:3/12/2015)... , March 12, 2015 The mascots of ... Children,s Hospital, part of Wake Forest Baptist Medical Center. ... for the 2015 ACC Men,s Basketball Tournament. Young patients ... them and getting their autographs. Brenner Children,s ... It is the only children,s hospital in northwest ...
(Date:3/10/2015)... 2015  Continuing its 167-year history of offering the ... The Eye Scanning Password Authenticator , a device ... secure websites or sensitive data. Employing the ... borders, the device has a small camera that scans ... iris, converting them into an encrypted ID that cannot ...
Breaking Biology News(10 mins):Connect With MedNet Solutions At Outsourcing In Clinical Trials Southeast 2Hammacher Schlemmer Introduces The Eye Scanning Password Authenticator 2
... imaging technology, researchers are getting a better understanding of a ... to provide quick access to a lot of oxygen, can ... is so efficient that resting insects stop taking in air ... K. Hetz of Humboldt University in Berlin, Germany. This allows ...
... could be reduced by up to 50 times using ... previously at the University of Vienna, told Chemistry & ... a type of virus that infects bacteria, can boost ... , It is the phages' ability to channel through ...
... a link between the growth of blood vessels critical ... our bodies has been discovered by researchers from the ... University of Chicago, using a beamline at the Advanced ... ones ?a process called angiogenesis ?is important in growth, ...
Cached Biology News:Breathing easy: When it comes to oxygen, a bug's life is full of it 2Breathing easy: When it comes to oxygen, a bug's life is full of it 3Breathing easy: When it comes to oxygen, a bug's life is full of it 4Cancer cells forming blood vessels send their copper to the edge 2Cancer cells forming blood vessels send their copper to the edge 3
(Date:3/25/2015)... 2015 /PRNewswire/ - SQI Diagnostics Inc. ("SQI" or the "Company") ... of recent discussions with certain shareholders representing approximately 45% ... after dealing with certain matters including the appointment of ... on March 26, 2015 (the "Meeting") it intends to ... will take place when the Meeting reconvenes. The Meeting ...
(Date:3/25/2015)... 25, 2015  S&P Capital IQ (MHFI) announced ... Report coverage on Abattis Bioceuticals Corp . ... is a specialty biotechnology company with capabilities through ... marketing proprietary ingredients, bio-similar compounds, patented equipment and ... North America . The company seeks to ...
(Date:3/25/2015)... , CAMBRIDGE, Mass. and ... NextCODE, which provides comprehensive capabilities for using the genome to ... on their publication of the largest studies of whole-genome data ... online in Nature Genetics – are ... sequence variation, authored by a team of deCODE scientists led ...
(Date:3/25/2015)... CA (PRWEB) March 25, 2015 ... for Novel Mechanism of Action in Neuromuscular Diseases ... 2015 – Cytokinetics, Incorporated (Nasdaq: CYTK) announced the ... skeletal muscle troponin activator tirasemtiv in the journal ... Phase IIa “Evidence of Effect” or hypothesis-generating clinical ...
Breaking Biology Technology:SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 2SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 3SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 4SQI Diagnostics Inc. Announces New Nominees to SQI Diagnostics Board and Adjournment of Meeting 5S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 5Landmark deCODE Studies Demonstrate the Power of Truly Big Genomics for Improving Medicine Worldwide 2Cytokinetics Announces Publication of Results from Phase II Trial of Tirasemtiv in Patients with Myasthenia Gravis 2Cytokinetics Announces Publication of Results from Phase II Trial of Tirasemtiv in Patients with Myasthenia Gravis 3Cytokinetics Announces Publication of Results from Phase II Trial of Tirasemtiv in Patients with Myasthenia Gravis 4Cytokinetics Announces Publication of Results from Phase II Trial of Tirasemtiv in Patients with Myasthenia Gravis 5Cytokinetics Announces Publication of Results from Phase II Trial of Tirasemtiv in Patients with Myasthenia Gravis 6
... June 7, 2011 DuPont (NYSE: DD ... investors at the JPMorgan Diversified Industries Conference to expect ... innovation, selective investment in attractive areas, broad-based growth, especially ...  Kullman also reaffirmed DuPont,s 2011 earnings per share (EPS) ...
... its origins in Hamburg. Jrg Weimller, a materials scientist ... Helmholtz Center Geesthacht, has carried out research on this ... Institute for Metal Research in Shenyang, China., The 51-year-old ... which opens the door to a multitude of diverse ...
... of Academic Health Centers (AAHC) supports the Department ... Rights, (OCR) proposed rule, issued last week, furthering ... efforts to alleviate unnecessary compliance and administrative burdens ... placed on covered entities, and applauds its efforts ...
Cached Biology Technology:DuPont Chair & CEO: Delivering Innovative Solutions and Long-term Growth 2DuPont Chair & CEO: Delivering Innovative Solutions and Long-term Growth 3Hard or soft: At the touch of a button 2Hard or soft: At the touch of a button 3AAHC Commends HHS Office for Civil Rights HIPAA Privacy Proposal 2
... be able to handle larger sample volumes, automate ... as interface with telemetry systems. The AccuSampler ... dogs, pigs, and primates. The system may ... the computer can be located outside the animal ...
The new Silencer siRNA Starter Kit is perfect for researchers new to RNAi. It provides all of the reagents, protocols, and instructions necessary to get underway with siRNA transfection and ensure su...
... A key to successful cell culture ... nutrient composition during the process, and make ... the composition. Nova BioProfile Chemistry Analyzers provide ... gases in cell culture and fermentation media. ...
... Testing Laboratory (RTL) can provide you ... years. ,,Microbial method development and validation ... the conditions of your GMP manufacturing ... products,,We offer a full spectrum of ...
Biology Products: