TU Darmstadt / ULB / TUbiblio

YCo5±xthin films with perpendicular anisotropy grown by molecular beam epitaxy

Sharma, S. and Hildebrandt, E. and Sharath, S. U. and Radulov, I. and Alff, L. (2017):
YCo5±xthin films with perpendicular anisotropy grown by molecular beam epitaxy.
In: Journal of Magnetism and Magnetic Materials, Elsevier Science Publishing, pp. 382-386, 432, ISSN 03048853, DOI: 10.1016/j.jmmm.2017.02.020, [Online-Edition: https://doi.org/10.1016/j.jmmm.2017.02.020],
[Article]

Abstract

The synthesis conditions of buffer-free (00l) oriented YCo5 and Y2Co17 thin films onto Al2O3 (0001) substrates have been explored by molecular beam epitaxy (MBE). The manipulation of the ratio of individual atomic beams of Yttrium, Y and Cobalt, Co, as well as growth rate variations allows establishing a thin film phase diagram. Highly textured YCo5±x thin films were stabilized with saturation magnetization of 517 emu/cm3 (0.517 MA/m), coercivity of 4 kOe (0.4 T), and anisotropy constant, K1, equal to 5.34×106 erg/cm3 (0.53 MJ/m3). These magnetic parameters and the perpendicular anisotropy obtained without additional underlayers make the material system interesting for application in magnetic recording devices.

Item Type: Article
Erschienen: 2017
Creators: Sharma, S. and Hildebrandt, E. and Sharath, S. U. and Radulov, I. and Alff, L.
Title: YCo5±xthin films with perpendicular anisotropy grown by molecular beam epitaxy
Language: English
Abstract:

The synthesis conditions of buffer-free (00l) oriented YCo5 and Y2Co17 thin films onto Al2O3 (0001) substrates have been explored by molecular beam epitaxy (MBE). The manipulation of the ratio of individual atomic beams of Yttrium, Y and Cobalt, Co, as well as growth rate variations allows establishing a thin film phase diagram. Highly textured YCo5±x thin films were stabilized with saturation magnetization of 517 emu/cm3 (0.517 MA/m), coercivity of 4 kOe (0.4 T), and anisotropy constant, K1, equal to 5.34×106 erg/cm3 (0.53 MJ/m3). These magnetic parameters and the perpendicular anisotropy obtained without additional underlayers make the material system interesting for application in magnetic recording devices.

Journal or Publication Title: Journal of Magnetism and Magnetic Materials
Volume: 432
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: YCo5, MBE, Thin film phase diagram, Perpendicular anisotropy
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Advanced Thin Film Technology
11 Department of Materials and Earth Sciences > Material Science > Functional Materials
Date Deposited: 11 Dec 2017 12:02
DOI: 10.1016/j.jmmm.2017.02.020
Official URL: https://doi.org/10.1016/j.jmmm.2017.02.020
Funders: This work was supported by the Deutscher Akademischer Austauschdienst (DAAD) and the German federal state of Hessen through its excellence program LOEWE RESPONSE.
Export:

Optionen (nur für Redakteure)

View Item View Item