Navigation Links
Smallest magnetic field sensor in the world

This release is available in German.

Further development of modern information technology requires computer capacities of increased efficiency at reasonable costs. In the past, integration density of the relevant electronic components was increased constantly. In continuation of this strategy, future components will have to reach the size of individual molecules. Researchers from the KIT Center for Functional Nanostructures (CFN) and IPCMS have now come closer to reaching this target.

For the first time, a team of scientists from KIT and the Institut de Physique et Chimie des Matriaux de Strasbourg (IPCMS) have now succeeded in combining the concepts of spin electronics and molecular electronics in a single component consisting of a single molecule. Components based on this principle have a special potential, as they allow for the production of very small and highly efficient magnetic field sensors for read heads in hard disks or for non-volatile memories in order to further increase reading speed and data density.

Use of organic molecules as electronic components is being investigated extensively at the moment. Miniaturization is associated with the problem of the information being encoded with the help of the charge of the electron (current on or off). However, this requires a relatively high amount of energy. In spin electronics, the information is encoded in the intrinsic rotation of the electron, the spin. The advantage is that the spin is maintained even when switching off current supply, which means that the component can store information without any energy consumption.

The German-French research team has now combined these concepts. The organic molecule H2-phthalocyanin that is also used as blue dye in ball pens exhibits a strong dependence of its resistance, if it is trapped between spin-polarized, i.e. magnetic electrodes. This effect was first observed in purely metal contacts by Albert Fert and Peter Grnberg. It is referred to as giant magnetoresistance and was acknowledged by the Nobel Prize for Physics in 2007.

The giant magnetoresistance effect on single molecules was demonstrated at KIT within the framework of a combined experimental and theoretical project of CFN and a German-French graduate school in cooperation with the IPCMS, Strasbourg. The results of the scientists are now presented in the renowned journal "Nature Nanotechnology".


Contact: Denis Elbl
Helmholtz Association of German Research Centres

Related biology technology :

1. Smallest ever quantum dots bring real world applications closer
2. Stanford writes in worlds smallest letters
3. Signostics Receives FDA Clearance for Worlds Smallest Ultrasound Product
4. The Worlds Smallest Hero! Rexin-G, Targeted Therapy for Metastatic Cancers
5. Small ... smaller ... smallest? ASU researchers create molecular diode
6. Smallest nanoantennas for high-speed data networks
7. Scientists discover worlds smallest superconductor
8. Worlds smallest battery created at CINT nanotechnology center
9. New Publications Show Noninvasive Magnetic Resonance-Guided Focused Ultrasound to be a Potentially Safe, Effective Pain-Relieving Treatment for Bone Metastases
10. Stereotaxis Showcases Advancements for Remote Magnetic Ablations
11. Capture of nanomagnetic fingerprints a boost for next-generation information storage media
Post Your Comments:
Related Image:
Smallest magnetic field sensor in the world
(Date:11/27/2015)... 2015 /PRNewswire/--  Mallinckrodt plc (NYSE: MNK ), ... has closed the sale of its global contrast media ... Euronext) in a transaction valued at approximately $270 million. ... a total of approximately 1,000 employees spread across the ... Louis area. This entire workforce and the ...
(Date:11/26/2015)... England , November 26, 2015 ... an innovative medical device company specializing in imaging technologies, announced ... the European Commission as part of the Horizon 2020 European ... to carry out a large-scale clinical trial in breast cancer. ...      (Logo: , --> ...
(Date:11/25/2015)... -- Studies reveal the differences in species ... the way for more effective treatment for one of the ... --> --> Gum disease ... cats, yet relatively little was understood about the bacteria associated ... conducted by researchers from the WALTHAM Centre for Pet Nutrition ...
(Date:11/25/2015)... , ... November 25, 2015 , ... ... the Organization of Black Aerospace Professionals (OPBAP) has been formalized with the signing ... AMA team leaders met with OPBAP leaders Capt. Karl Minter and Capt. Albert ...
Breaking Biology Technology:
(Date:10/29/2015)... 29, 2015  Connected health pioneer, Joseph C. ... of technology-enabled health and wellness, and the business opportunities ... The Internet of Healthy Things . Long ... even existed, Dr. Kvedar, vice president, Connected Health, Partners ... delivery, moving care from the hospital or doctor,s office ...
(Date:10/27/2015)... 27, 2015 In the present market scenario, ... for various industry verticals such as banking, healthcare, defense, ... growing demand for secure & simplified access control and ... as hacking of bank accounts, misuse of users, , ... as PC,s, laptops, and smartphones are expected to provide ...
(Date:10/26/2015)... , October 26, 2015 /PRNewswire/ ... --> adds Biometrics ... to 2021 as well as Emerging ... research reports to its collection of ... . --> ...
Breaking Biology News(10 mins):