High-coercivity SmCo5 thin film with in-plane or out-of-plane anisotropy

L. N. Zhang; J. F. Hu; J. S. Chen; J. Ding

doi:10.1117/12.822285

19 March 2009 High-coercivity SmCo₅ thin film with in-plane or out-of-plane anisotropy

L. N. Zhang, J. F. Hu, J. S. Chen, J. Ding

Proceedings Volume 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage; 71250M (2009) https://doi.org/10.1117/12.822285
Event: Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 2008, Wuhan, China

Abstract

In this work, we prepared high-coercivity SmCo₅ thin films with in-plane or out-of-plane anisotropy. Our research work focused on the induction of highly textured SmCo₅ thin films using suitable underlayers. A Cr underlayer was used for the fabrication of SmCo₅ with in-plane anisotropy. The nanocrystalline SmCo5 thin films with a (1120) texture exhibited high in-plane intrinsic coercivity up to 18.5 kOe. On the other hand, with a Cu underlayer, highly (0001) textured SmCo₅ thin films showed large perpendicular anisotropy and high coercivity up to 20 kOe. Our research work showed that a very thin seedlayer (4nm) of Ta can improve the crystallinity and texture of the (111) Cu underlayer. The high quality Cu underlayer can result in high magnetic performance of SmCo₅ thin films.

Citation Download Citation

L. N. Zhang, J. F. Hu, J. S. Chen, and J. Ding "High-coercivity SmCo₅ thin film with in-plane or out-of-plane anisotropy", Proc. SPIE 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 71250M (19 March 2009); https://doi.org/10.1117/12.822285

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