Reader heads of compact discs and computer hard discs or position and magnetic field sensors are some of the applications of magneto-resistant materials, which are normally obtained by costly methods. Precisely in order to solve this problem, university teacher María Luisa Fernández-Gubieda Ruiz, of the University of the Basque Country, is carrying out research into developing a simpler and more effective method for the preparation of these materials, based on their undergoing thermal treatment. The lecturer explained the new method at a seminar recently given at the Department of Physics at the Public University of Navarre.
Fernández-Gubieda explained that magneto-resistance is the change in resistance manifested by certain materials when subjected to a magnetic field. These changes, she added, can be of great importance and in some systems can reach a variation of up to 40 or 50 per cent.
Garazi Andonegi | Basque research
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