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:1/15/2014)... RedBrick Health , a fast-growing leader in consumer ... EmblemHealth , the New York ... the RedBrick Compass health assessment, combined with the RedBrick ... members. EmblemHealth is among the first health plans in ...
(Date:1/15/2014)... January 15, 2014 The Microcompetition with Foreign ... disease. One of these latent viruses is the Epstein Barr ... (RA). Rheumatoid arthritis (RA) is a chronic inflammatory disease that ... study found that RA patients have high concentrations of EBV ...
(Date:1/15/2014)... TaiGen Biotechnology Company, Limited ("TaiGen") today announced that they ... Russian pharmaceutical company, to develop and commercialize nemonoxacin (Taigexyn ... , Turkey and other members ... antibiotic for the treatment of bacterial infections including those ...
(Date:1/14/2014)... As pet owners drew up their lists of New Year,s ... better care of my furry companion." Nowadays there are pet salons, ... cases to take the little canine or feline darlings along wherever ... buy some pricey toys at the pet store. But anyone who ...
Breaking Biology Technology:EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2
... Imaging and Printing Group and its Personal Systems Group into ... milestone in HPs journey to become the consumer ... a unified and convincing product message for every room in ... HPs consumer message into overdrive. , ,The consumer technology market ...
... Merge Technologies Incorporated and Cedara Software Corp. ... develop health-care software, particularly digital medical imaging. , ,Pending stockholder ... in Milwaukee. Merge CEO Richard Linden will stay ... Abe Schwartz will stay on the board of directors. Merge ...
... an idea of what Madison could offer to the field ... how many new visitors our coverage of last Thursday's ... WTN 's Web site. Our normal recurring readership is ... than half are from out-of-state and about 15 percent read ...
Cached Biology Technology:HP charges toward the living room 2HP charges toward the living room 3International eyes drawn to Madison's games research 2International eyes drawn to Madison's games research 3International eyes drawn to Madison's games research 4
(Date:4/20/2014)... importance for both basic researchers and medical practitioners, ... of Maryland have developed a new computational method ... from RNA sequencing (RNA-seq) data., With the new ... estimates of gene expression that previously took many ... with accuracy that equals or exceeds previous methods. ...
(Date:4/20/2014)... 2014 -- Using corn crop residue to make ethanol ... more greenhouse gases than gasoline, according to a study ... . , The findings by a University of Nebraska-Lincoln ... can be used to meet federal mandates to ramp ... Corn stover -- the stalks, leaves and cobs in ...
(Date:4/18/2014)... the past 20 years, researchers have published soil organic ... have suggested that soil organic carbon can be sequestered ... to no-till systems. However, there is a growing body ... and soybean rotations without cover crops, small grains, and ... at the published rates. , "Some studies have shown ...
Breaking Biology News(10 mins):Computational method dramatically speeds up estimates of gene expression 2Study casts doubt on climate benefit of biofuels from corn residue 2Study casts doubt on climate benefit of biofuels from corn residue 3Researchers question published no-till soil organic carbon sequestration rates 2Researchers question published no-till soil organic carbon sequestration rates 3Researchers question published no-till soil organic carbon sequestration rates 4
... Iceland, August 9, 2007 In a paper published ... (Nasdaq:DCGN) and academic colleagues from the National University Hospital ... discovery of two common single letter variations (SNPs) in ... account for virtually all cases of a major subtype ...
... anti-cancer therapy by blocking the molecular motors involved in ... by young Dutch researcher Dr. Nynke Dekker in one ... the European Science Foundation (ESF) and the European Heads ... are trying to stop tumor development by interfering with ...
... Today, researchers report for the first time ... are inherited only from the motherare directly linked to ... which highlights the role of mitochondrial genome variation in ... Genome Research ( www.genome.org ). According ...
Cached Biology News:deCODE discovers cause of major subtype of glaucoma 2ESF EURYI award winner aims to stop cancer cells reading their own DNA 2Scientists show that mitochondrial DNA variants are linked to risk factors for type 2 diabetes 2
... The Fujifilm Life Science LAS-3000 imaging ... with a simplified user interface, providing ... wide range of modularities. The system ... and the perfect standard system for ...
... Life Science LAS-3000mini is a compact ... chemiluminescence applications, and the perfect standard ... 's LAS-3000 provides significantly improved system ... Glowell calibration standards validate that Fujis ...
... 50 assays. The TUNEL-based assay kit ... control cells for convenient detection of DNA ... The assay offers an one-step labeling of ... is a hallmark of apoptosis in mammalian ...
SDS-OutT Precipitation Reagent...
Biology Products: