Magnetoresistance new promises

Magnetoresistance is an alteration in electrical resistance as a result of a magnetic field’s presence. Magnetoresistance is when the property of a material changes value when magnetic field is applied. First discovered by William Thomson, popularly known as Lord Kelvin, he was however not able to reduce electrical resistance by more than 5%. But the different of 5% was considered minimal, yet a remarkable discovery back then. Since the difference was marginal, it was termed ordinary magnetoresistance (OMR). 

Recent researches and discovery of new materials have made it possible to improve the resistance, thanks to multilayer devices. Now the resistance percentage can be varied greatly, and it is termed as giant magnetoresistance (GMR). Resistance depends on the magnetization or the magnetic field. Albert Fert and Peter Grunberg scientists from France and Germany have won Nobel Prize for Physics, in the year 2007. Thanks to their discovery of "giant magnetoresistance" phenomena, electrical resistance can be reduced greatly. Using this phenomenon, intuitive tools that can get data from hard drives like iPods, PCs and other electronic gadgets were developed. It made radical changes to the once huge hard drives, which are now miniscule and handy. 

Many say GMR is a very practical and useful discovery, which made storage easy and hassle-free. If only GMR wasn’t discovered, we would not have had a handy iPod with a huge playlist, instead, it would just have one song! GMR uses structures that are composed of thin layers of magnetic materials. It is considered as one of the first and most promising application of nanotechnology. It is now possible to store ample data in compact disks as a result of this discovery and paved way for cheaper and better solutions. Now, we are able to store terabytes of data in a compact hard disks, thanks to GMR!

About Stanford Magnets.

Based in California, Stanford Magnets has been involved in the R&D and sales of licensed Rare-earth magnets, Neodymium magnets and SmCo magnets, ceramic magnets, flexible magnets and magnetic assemblies since the mid of 1980s. We supply all these types of magnets in a wide range of shapes, sizes and grades.