Impact of MgO thickness on the perpendicular magnetic anisotropy of Mo/Co2FeAl/MgO/Mo multilayers with improved annealing stability
Source abstract
Abstract
Abstract In this study, an interfacial perpendicular magnetic anisotropy (PMA) is achieved in Mo/Co 2 FeAl (CFA)/MgO/Mo multilayer with good thermal stability up to 400 °C by tuning the annealing temperature and film thickness of CFA and MgO. For an optimized CFA film thickness (1.0 nm) and annealing temperature (400 °C), the CFA/MgO interface plays a main role in achieving the strong PMA property when the MgO film thickness was tuned from 0.5 nm to 2.0 nm. The effective perpendicular magnetic anisotropy energy density (K eff) is approximately 1.67 × 106 erg/cc when tMgO = 2 nm. Surface morphology and surface roughness changes in the films are investigated by atomic force microscopy (AFM). An enhancement in surface smoothness is observed for the annealed films. X-ray photoelectron spectroscopy (XPS) reveals that the strong PMA in Mo/CFA/MgO is originated from the adequate oxidation of Co and Fe at CFA/MgO interface.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic properties of thin films · Magnetic and transport properties of perovskites and related materials · Magnetic Properties and Synthesis of Ferrites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (54)
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