Element specific hysteresis of La0.7Sr0.3MnO3-SrRuO3 (LSMO-SRO) heterostructures

Schäffer, A. F.; Chotorlishvili, L.; Maznichenko, I. V.; Ernst, A.; Dörr, K.; Mertig, I.; Berakdar, J.

doi:10.1063/1.5036811

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Element specific hysteresis of La_0.7Sr_0.3MnO₃-SrRuO₃ (LSMO-SRO) heterostructures

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Ernst, A.
Max Planck Institute of Microstructure Physics, Max Planck Society;

Mertig, I.
Max Planck Institute of Microstructure Physics, Max Planck Society;

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Citation

Schäffer, A. F., Chotorlishvili, L., Maznichenko, I. V., Ernst, A., Dörr, K., Mertig, I., et al. (2018). Element specific hysteresis of La_0.7Sr_0.3MnO₃-SrRuO₃ (LSMO-SRO) heterostructures. APL Materials, 6(7): 076103. doi:10.1063/1.5036811.

Cite as: https://hdl.handle.net/21.11116/0000-0009-271A-F

Abstract

The ferromagnetic oxides La_0.7Sr_0.3MnO₃ (LSMO) and SrRuO₃ (SRO) couple antiferromagnetically, leading to a canted spin-structure at the interface’s proximity. Performingfirst-principles calculations in combination with Monte Carlo and finite temperature micromagnetic simulations, we explore possible magnetic phases and find a distinctive element specific hysteresis behavior whose dependence on external parameters is analyzed. The results reveal the interplay of magnetic anisotropy and exchange coupling at the interface for the appearance of interfacial pin canting and unusual magnetic switching hich are of strong relevance for spintronic devices. In particular, the different coercive fields for SRO and LSMO allow performing selective switching of SRO and LSMO layers.