2020/05/15 by Pushpendra Gupta, Gupta, Pushpendra, Braj Bhusan Singh +11
Engineering · Materials Science · #14J60 (Primary) #Chemical and Physical Properties of Materials #Electronic and Structural Properties of Oxides #F.2.2 #FOS: Physical sciences #Magnetic Field Sensors Techniques #Magnetic Properties of Alloys #Magnetic and transport properties of perovskites and related materials #Materials Science (cond-mat.mtrl-sci) #Metallurgical and Alloy Processes
paper · pdf · doi:10.48550/arxiv.2005.07848
openalex publication_date 2020/05/15 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
Manganites have shown potential in spintronics because they exhibit high spin\npolarization. Here, by ferromagnetic resonance we have studied the damping\nproperties of La0.67Sr0.33MnO3/Pt bilayers which are prepared by\noxide molecular beam epitaxy. The damping coefficient (\α) of\nLa0.67Sr0.33MnO3 (LSMO) single layer is found to be 0.0104.\nHowever the LSMO/Pt bilayers exhibit decrease in \α with increase in Pt\nthickness. This decrease in the value of \α is probably due to high\nanti-damping like torque. Further, we have investigated the angle dependent\ninverse spin Hall effect (ISHE) to quantify the spin pumping voltage from other\nspin rectification effects such as anomalous Hall effect and anisotropic\nmagnetoresistance. We have observed high spin pumping voltage (\∼~20 \μ\nV). The results indicate that both anti-damping and spin pumping phenomena are\noccuring simultaneously.\n