The research is presented in a paper entitled 'Tunable magnetoresistance in an asymmetrically coupled single 2 molecule junction', published online today by the journal Nature Nanotechnology.
He pursued his interest throughout the 80s in the magnetism of natural minerals, including those found in clays, meteorites and tropical oxisols, and had brief dalliances with high-TC superconductivity and cold fusion, the sensations of the decade, but Michael Coey refocussed his interests on magnetorsistive oxides, especially when in the form of films of a few nanometers thick. Opportunites existed to exploit half-metals as sources of spin-polarized electrons in new thin film devices. This was the aim of the ‘Oxide Spin Electronics Network’, an EU-funded group of eight laboratories sharing postdocs and graduate students, which he coordinated in the late 90s. Investigations of the magnetoresistance of nanoscale oxide point contacts led to the discovery of powder magnetoresistance in pressed powder compacts.
Using two-dimensional finite element simulations, the geometric dependence of the output sensitivity, which is a more relevant parameter for EMR sensors than the magnetoresistance (MR), is studied.
Trademark:INATECHOrigin:Shenzhen, Guangdong, ChinaProduct DescriptionThe magnetic sensor consists of multi-pole ringmagnets and hallmagnetoresistance IC, mainly for the speed, position, the flow measurement control applications.
A new 3-contact device is developed improving the poor low-field sensitivity observed in conventional EMR devices, resulting from its parabolic magnetoresistance response.
The Effect of Core Geometry and Bias on Solenoid EfficiencyInvestigate tunnel junction magnetoresistance