Nanoscale crystal imperfection-induced characterization changes of manganite nanolayers with various crystallographic textures

Abstract

(La,Sr)MnO3 (LSMO) nanolayers with various crystallographic textures were grown on the sapphire substrate with and without In2O3 epitaxial buffering. The LSMO nanolayer with In2O3 epitaxial buffering has a (110) preferred orientation. However, the nanolayer without buffering shows a highly (100)-oriented texture. Detailed microstructure analyses show that the LSMO nanolayer with In2O3 epitaxial buffering has a high degree of nanoscale disordered regions (such as subgrain boundaries and incoherent heterointerfaces) in the film. These structural inhomogeneities caused a low degree of ferromagnetic ordering in LSMO with In2O3 epitaxial buffering, which leads to a lower saturation magnetization value and Curie temperature, and higher coercivity and resistivity.

Growth and crystallographic feature-dependent characterization of spinel zinc ferrite thin films by RF sputtering

“…Polycrystalline ZFO films were also prepared by spin-spray deposition; however, controlling the film thickness to be less than several hundred nanometers is challenging [12]. Although several groups have proposed the fabrication of ZFO films using versatile methodologies, the sputtering technique is promising for preparing oxide thin films with excellent crystalline quality and controllable film thickness for device applications because it is a technique that enables large-area deposition and easy process control [13,14]. It is well known that crystallographic features affect the properties of versatile oxide films [13,15].…”

Synthesis of SnS and ZnS Hollow Microarchitectures Decorated with Nanostructures and Their Photocatalytic Behavior for Dye Degradation

“…On the other hand, the formation of nanostructures can be understood below the self‐catalytic growth mechanism similarly to catalyst‐free vapor–liquid–solid (VLS) process. In the self‐catalytic growth, external catalyst is not introduced during the VLS growth.…”

Reducing gas-sensing performance of Ce-doped SnO2 thin films through a cosputtering method

“…Various-sputtering deposited oxide thin lms have been reported to exhibit a columnar grain feature. 28,29 The lm is dense and does not have visible pores. The top region of the lm is smooth.…”