Single layer magnetoresistive sensors were designed in a Wheatstone bridge configuration using La 2/3 Sr 1/3 MnO3 ferromagnetic oxide thin film. Uniaxial anisotropy was induced by performing epitaxial deposition of the films on top of vicinal SrTiO3 substrate. X-ray scan confirms high crystalline quality of the films and the magnetic anisotropy was checked by Magneto-optical Kerr Effect measurements. Thanks to the anisotropic magnetoresistive effect and the very low noise measured in the devices, sub-nT resolution was achieved above 100 Hz at 310 K.
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