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We investigate the magnetic and magnetotransport properties of nanostructuredNd0.6Sr0.4MnO3 (NSMO) thin films grown on (100) oriented SrTiO3 (STO)substrates. The thin films fabricated using the pulsed laser depositiontechnique have been found to possess two distinct surface morphologies:granular and nano rod type. Magnetization measurements have revealed that thefilms with rod-type morphology exhibit improved in-plane magnetic anisotropy.Magnetotransport studies have revealed that the granular thin films display acharacteristic butterfly-shaped low-field magneto-resistive (LFMR) behavior.Furthermore, we investigate the anisotropic magneto-resistive (AMR) phenomenonin the samples and we find that morphology greatly affects AMR. Thin films withrod-type morphology show an enhanced AMR %. Such morphology dependenttunability in magnetoresistance properties over a wide temperature range ispotentially interesting for developing oxide-based sensors and devices.

Anisotropic magnetic and magnetotransport properties in morphologically distinct Nd0.6Sr0.4MnO3 thin films