Emergent Uniaxial Magnetic Anisotropy in High-Integrity, Uniform Freestanding LaMnO₃ Membranes.

ABSTRACT: The water-liftoff fabrication of freestanding oxide membranes at nanometer-scale thickness marks a major breakthrough in expanding the family of soft electromagnetic materials. The structure reconstruction in the newly formed two-dimensional freestanding membrane due to the chemical liftoff provides an excellent opportunity to achieve applicable functionalities. In this report, we present the anisotropic relaxation of a LaMnO₃ epitaxial film into a nearly wrinkle- and crack-free membrane, realized by high-temperature (160 °C)-treated PMMA as the protective layer during the water liftoff process. Remarkably, the resulting membrane exhibits a 2-fold uniaxial magnetic anisotropy, which is in stark contrast to the typical 4-fold biaxial magnetic anisotropy in biaxially strained epit

SUBMITTER: Wang Q 

PROVIDER: S-EPMC11647760 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature