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Structure, magnetic morphology and magnetization correlations in pulsed laser deposited CoFe2O4 (111) thin films by Avisek Das; Annarose J Palliyan; Ajit Kumar Sahoo; Jyoti Ranjan Mohanty; Venkataiah Gorige is a Engineering article available to read on EtoBox.

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The present paper reports a complete study on the correlation between structure, morphology, and magnetic properties of (111)-oriented cobalt ferrite (CoFe 2 O 4 ) thin films with varying film thickness. The CoFe 2 O 4 (CFO) thin films were deposited on Pt-coated Si substrate by pulsed laser deposition (PLD) at 550 • C. The x-ray diffraction (XRD) data confirms the (111)-oriented growth of the cobalt ferrite films. The in-plane morphology of the films in the field emission scanning electron micrographs ensure the Stranski-Krastanov growth mechanism, and the atomic force micrographs confirms the effect of lattice relaxation on the morphology of the films with varying thickness. The possible cation distributions for the samples were determined from the Raman spectroscopy, which revealed the crystal structure-magnetic property correlations in cobalt ferrite films. The magnetic hysteresis (M -H) loops show a significant spin reorientation by showing the variation between the in-plane (IP) and out-of-plane (OP) magnetization. The presence of a kink on the OP M -H loops and its variation with film thickness clearly establishes the existence of competing magnetic anisotropies in the films

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Author

Avisek Das; Annarose J Palliyan; Ajit Kumar Sahoo; Jyoti Ranjan Mohanty; Venkataiah Gorige

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)