Magnetism and Thermal Transport of Exchange-Spring-Coupled La_2/3Sr_1/3MnO₃/La₂MnCoO₆ Superlattices with Perpendicular Magnetic Anisotropy.

ABSTRACT: Superlattices (SLs) comprising layers of a soft ferromagnetic metal La_2/3Sr_1/3MnO₃ (LSMO) with in-plane (IP) magnetic easy axis and a hard ferromagnetic insulator La₂MnCoO₆ (LMCO, out-of-plane anisotropy) were grown on SrTiO₃ (100)(STO) substrates by a metalorganic aerosol deposition technique. Exchange spring magnetic (ESM) behavior between LSMO and LMCO, manifested by a spin reorientation transition of the LSMO layers towards perpendicular magnetic anisotropy below T_SR = 260 K, was observed. Further, 3ω measurements of the [(LMCO)₉/(LSMO)₉]₁₁/STO(100) superlattices revealed extremely low values of the cross-plane thermal conductivity κ(300 K) = 0.32 Wm^-1K

SUBMITTER: Bruchmann-Bamberg V 

PROVIDER: S-EPMC10649329 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature