On-off magnetoresistive sensor based on screen-printed La2/3Sr1/3MnO3 manganite films

D RUBI; J. FONTCUBERTA; M. LACABA; A.M. GONZÁLEZ; J. BAZTÁN; A. CALLEJA; LL. ARAGONÉS; X.G. CAPDEVILA; M. SEGARRA

Barcelona, Espana

Congreso; Eurosensors XIX; 2005

Half-metallic ferromagnetic oxides present a remarkable potential for the development of magnetoresistive sensors. We report on the design, construction and test of a contact-less on–off position sensor based on thick La2/3Sr1/3MnO3 films. Films were fabricated on polycrystalline Al2O3 substrates by means of the standard screen-printing technique. The temperature dependence of the output signal of the sensor has been monitored from room temperature up to 120 ◦C.