Metal-oxide buffer layer for maintaining topological bumpy surface underlayer of columnar CoPt-SiO2 granular media deposited at high substrate temperature

Tham, Kim Kong; Hinata, Shintaro; Saito, Shin; Takahashi, M.

doi:10.1063/1.4918566

Cited by 4 publications

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References 14 publications

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“…The fabrication of the media of any of the candidate next-generation technologies becomes very challenging as the recording schemes change. One of the most important ways of improving the microstructure of magnetic media is to utilize the substrate and subsequent underlayers to control the microstructure. − …”

Section: Introductionmentioning

confidence: 99%

Understanding the Nanostructure Formation of the Templated Two-Phase Film Growth via Hybrid Modeling

Lü

Lai

Sundar³

et al. 2017

Crystal Growth & Design

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A hybrid model incorporating two methods, i.e., the Potts model Monte Carlo and the level set method, is developed to simulate the templated growth of a twophase CoPt/SiO 2 thin film. Previously it was demonstrated experimentally that the film grown on the prefabricated template followed the pattern of the template, forming a highly ordered microstructure. The simulation in this study investigates the physical mechanism by which such film growth behavior occurs and which parameters dictate the resultant microstructure. To correctly represent the physical process, the interfacial energies between different phases and the rate of each microevent to occur were established through the simulated film deposition on a flat substrate and subsequent comparison to the experimental observations. With the established interfacial energy and rate of microevents, the resultant film microstructure grown on the templated substrate is found to strongly depend on the geometries of domes fabricated on the template. The dominant mechanism of the formation of the microstructure is shown to shift from the surface energy gradient controlled lateral diffusion in the initial stage of film growth, which formed the rudiment of the ordered microstructure, to an interfacial energy controlled process, which retained the ordered microstructure in the later stage.

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Section: Introductionmentioning

confidence: 99%

Understanding the Nanostructure Formation of the Templated Two-Phase Film Growth via Hybrid Modeling

Lü

Lai

Sundar³

et al. 2017

Crystal Growth & Design

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show abstract

Effect of Topological Bumpy Surface Underlayer on Compositionally Modulated Atomic Layer Stacking in High <inline-formula> <tex-math notation="LaTeX">${K}_{u}$ </tex-math></inline-formula> hcp Co<sub>80</sub>Pt<sub>20</sub> Film With (00.2) Crystallographic Texture Orientation

Tham¹,

Hinata

Saito

2015

IEEE Trans. Magn.

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Ru Alloy-Oxide Buffer Layer for Intergranular Exchange Decoupling of CoPt–B₂O₃ Granular Media

et al. 2018

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Metal-oxide buffer layer for maintaining topological bumpy surface underlayer of columnar CoPt-SiO2 granular media deposited at high substrate temperature

Abstract: Articles you may be interested inSuccessful fabrication of high K u columnar CoPt-SiO2 granular film sputtered under high substrate temperature Enhance the coercivity of the rhombohedral lattice L11 CoPt thin film on glass substrate

Cited by 4 publications

References 14 publications

Understanding the Nanostructure Formation of the Templated Two-Phase Film Growth via Hybrid Modeling

Understanding the Nanostructure Formation of the Templated Two-Phase Film Growth via Hybrid Modeling

Effect of Topological Bumpy Surface Underlayer on Compositionally Modulated Atomic Layer Stacking in High <inline-formula> <tex-math notation="LaTeX">${K}_{u}$ </tex-math></inline-formula> hcp Co<sub>80</sub>Pt<sub>20</sub> Film With (00.2) Crystallographic Texture Orientation

Ru Alloy-Oxide Buffer Layer for Intergranular Exchange Decoupling of CoPt–B₂O₃ Granular Media

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Metal-oxide buffer layer for maintaining topological bumpy surface underlayer of columnar CoPt-SiO2 granular media deposited at high substrate temperature

Abstract: Articles you may be interested inSuccessful fabrication of high K u columnar CoPt-SiO2 granular film sputtered under high substrate temperature Enhance the coercivity of the rhombohedral lattice L11 CoPt thin film on glass substrate

Cited by 4 publications

References 14 publications

Understanding the Nanostructure Formation of the Templated Two-Phase Film Growth via Hybrid Modeling

Understanding the Nanostructure Formation of the Templated Two-Phase Film Growth via Hybrid Modeling

Effect of Topological Bumpy Surface Underlayer on Compositionally Modulated Atomic Layer Stacking in High <inline-formula> <tex-math notation="LaTeX">${K}_{u}$ </tex-math></inline-formula> hcp Co<sub>80</sub>Pt<sub>20</sub> Film With (00.2) Crystallographic Texture Orientation

Ru Alloy-Oxide Buffer Layer for Intergranular Exchange Decoupling of CoPt–B2O3 Granular Media

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Ru Alloy-Oxide Buffer Layer for Intergranular Exchange Decoupling of CoPt–B₂O₃ Granular Media