Navigation Links
Texas A&M professor helps develop first high-temp spin-field-effect transistor
Date:12/23/2010

, succeeding to the point where we are approaching the ultimate limit, shifting the focus to establishing new physical principles of operation to overcome these limits specifically, using its elementary magnetic movement, or so-called "spin," as the logic variable instead of the charge.

This new approach constitutes the field of "spintronics," which promises potential advances in low-power electronics, hybrid electronic-magnetic systems and completely new functionalities.

Wunderlich says the 20-year-old theory of electrical manipulation and detection of electron's spin in semiconductors the cornerstone of which is the "holy grail" known as the spin transistor has proven to be unexpectedly difficult to experimentally realize.

"We used recently discovered quantum-relativistic phenomena for both spin manipulation and detection to realize and confirm all the principal phenomena of the spin transistor concept," Wunderlich explains.

To observe the electrical manipulation and detection of spins, the team made a specially designed planar photo-diode (as opposed to the typically used circularly polarized light source) placed next to the transistor channel. By shining light on the diode, they injected photo-excited electrons, rather than the customary spin-polarized electrons, into the transistor channel. Voltages were applied to input-gate electrodes to control the procession of spins via quantum-relativistic effects. These effects attributable to quantum relativity are also responsible for the onset of transverse electrical voltages in the device, which represent the output signal, dependent on the local orientation of processing electron spins in the transistor channel.

The new device can have a broad range of applications in spintronics research as an efficient tool for manipulating and detecting spins in semiconductors without disturbing the spin-polarized current or using magnetic elements.

Wunderlich notes the
'/>"/>

Contact: Jairo Sinova
sinova@physics.tamu.edu
979-845-4179
Texas A&M University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Texas Biotech Firms Receive More Than $35 Million in Federal Grants and Credits
2. Texas A&M chemical engineers work could lead to improved DNA analysis
3. Texas A&M veterinary researchers achieve cloning first
4. Texas Tech, U of Utah win Sandia microdevice competition
5. Texas Teen Opts for Stem Cell Therapy, Hopes of Enlisting in Military
6. $250,000 Awarded to Smartfield, Inc. of Lubbock, TX by the Texas Emerging Technology Fund
7. Texas-Based Consortium Announces Project GreenVax: A Groundbreaking Vaccine Manufacturing Research Program
8. UH Superconductivity Center Receives Texas Emerging Technology Fund Award
9. WaferGen Announces that University of Texas Southwestern Medical Center Demonstrates Utility of New SmartChip(TM) Nano-Dispenser with WaferGens SmartChip(TM) High-throughput Real-Time PCR System
10. Texas State University Prepares for Phase 2 Research on the Potential New Cancer and HIV Fighting ALKA-V6 Compound
11. SRA International Wins $16 Million Contract from Cancer Prevention and Research Institute of Texas
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/24/2014)... Vermillion, Inc. (Nasdaq:   VRML), a ... today that investors including Oracle Investment Management, ... several Vermillion directors have agreed to purchase approximately ... stock and warrants to purchase unregistered shares of ... Under the terms of the private ...
(Date:12/24/2014)... , Dec. 23, 2014 Sigma-Aldrich ... that the waiting period under the Hart-Scott-Rodino Antitrust ... acquisition expired on December 22, 2014, thereby completing ... requirement for the acquisition of the Company by ... antitrust clearance satisfies another condition to closing the ...
(Date:12/24/2014)... and NEW YORK , Dec. 23, ... open-label pilot study of mazindol in children with attention ... Therapy in December 2014 . The ... children with attention deficit/hyperactivity disorder" ( Konofal et al, ... Dec 1;8:2321-2332. eCollection 2014 ) shows that mazindol ...
(Date:12/22/2014)... , Dec. 22, 2014   ... a developer of pathogen-specific therapies for serious ... protecting the microbiome, today announced positive topline ... 1a clinical trial of SYN-004, the Company,s ... of Clostridium difficile (C. difficile) ...
Breaking Biology Technology:Vermillion 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 5Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 2Redefining ADHD: A New Approach & A Shift of Paradigm in ADHD Therapeutics 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 2Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 4Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 5
... CITY, China, July 2 /Xinhua-PRNewswire-FirstCall/,-- China Pharma Holdings, ... manufactures, and markets generic and branded bio-,pharmaceutical products ... at the Collins Stewart Fourth Annual Growth Conference ... conference is being held at the Mandarin,Oriental Hotel ...
... cells manufactured from bone marrow; SV ... SALT LAKE CITY and HAMBURG, Germany, July 2 ... cell therapies,for the treatment of acute kidney injury, today ... round was led by SV Life Sciences with Novo,A/S ...
... MELBOURNE, Australia, July 2 Research conducted ... has contributed significantly to a,major licensing agreement ... Germany-based pharmaceutical company, Merck,Serono., Under the ... seek,to develop new treatments for multiple sclerosis ...
Cached Biology Technology:China Pharma Holdings, Inc. to Present at Collins Stewart Fourth Annual Growth Conference in New York on July 8, 2008 at 2:00 p.m. EDT 2AlloCure Inc. Closes $14.5MM Series A Round to Develop a Stem Cell Therapy for Acute Kidney Injury 2AlloCure Inc. Closes $14.5MM Series A Round to Develop a Stem Cell Therapy for Acute Kidney Injury 3MS Drug Development Agreement Based on WEHI's Medicinal Chemistry 2
(Date:12/17/2014)... , Dec. 16, 2014 Research and ... the addition of the "Global Chemical Sensor ... http://photos.prnewswire.com/prnh/20130307/600769 ... the increasing demand for medical sensors in biomedical ... data for quick and correct diagnosis during surgical ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has ... in India 2015-2019" report to their offering. ... this market is the adoption of multimodal biometric ... characteristic of an individual for verification and identification ...
(Date:12/10/2014)... , Dec. 9, 2014  Valencell, a leader ... is seeing a staggering demand from its licensees for ... Company revealed, is not solely coming from fitness and ... well. "A wearable is only as useful ... accuracy is the ultimate driver in long-term mass consumer ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... as part of her undergraduate degree (MSci in Palaeontology and ... evolved in a most unusual way, becoming more and more ... is published today in the Journal of Systematic Palaeontology ... plants evolves, they quickly try out all the options. ...
... the Georgia Institute of Technology have designed a multiple-compartment ... drugs of different types. The researchers used a simple ... less than one micron. The capsule,s structure -- ... of the shell -- provides spatially-segregated compartments that make ...
... mapping various genomes onto an X-Y axis, a team comprised ... Darwin and a fruit fly -- among other organisms -- ... Size in Diploid Eukaryotic Species Centers on the Average Length ... Molecular Biology and Evolution . It details a project ...
Cached Biology News:The rise and rise of the flying reptiles 2Unique gel capsule structure enables co-delivery of different types of drugs 2Discovering the bigger picture in chromosomes 2Discovering the bigger picture in chromosomes 3
... Proliferator-Activated Receptor-gamma (PPAR) is a member ... ligand-activated transcription factors that heterodimerize with ... involved in the regulation of glucose ... (TZD) class of anti-diabetic agents called ...
... Service includes 1. Scanning of gel(s) ... High-sensitive tryptic in-gel digestion and peptide ... MALDI-MS 5. Acquisition of PMF (Peptide ... ultraflex TOF/TOF) 6. Acquisition of PFF ...
... Preparation Reconstitution: one vial contains ... ficoll and 50 mg PVP; ... water yields a 50concentrate Special ... 1.00 g/mL (20 C) Quality ...
... ImageXpress 5000A automated cellular imaging and analysis ... system designed specifically for rapid acquisition and ... cell-based screening. ImageXpress is fast. Scanning ... (1280 x 1024 pixels), with two fluorescence ...
Biology Products: