Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15947
Title: Deposition, microstructure and magnetic anisotropy of cobalt ferrite thin films
Authors: YIN JIANHUA
Keywords: Film growth, Texture evolution, Cobalt ferrite films, High coercivity, Stress anisotropy, Magnetic anisotropy
Issue Date: 4-May-2009
Source: YIN JIANHUA (2009-05-04). Deposition, microstructure and magnetic anisotropy of cobalt ferrite thin films. ScholarBank@NUS Repository.
Abstract: Co-ferrite films have showed potential applications in magnetic recording, hard permanent magnet and spintronics devices, which require excellent texture, large perpendicular anisotropy (Ku) and high coercivity (Hc). This work mainly focused on fabricating Co-ferrite films using pulsed laser deposition (PLD). Moreover, the physical mechanisms for film growth, texture evolution and magnetic anisotropy of Co-ferrite films were discussed in details. Texture evolution of films is attributed to the competition between surface or interfacial energy and strain energy density. The evolution of magnetic anisotropy can be well explained with strain-induced stress anisotropy. Based on the understanding, ZnO underlayer was demonstrated as an effective underlayer to obtain Co-ferrite films with excellent (111)-texture, high Hc (~10.7 kOe) and large Ku on amorphous glass at a low temperature of 300C.
URI: http://scholarbank.nus.edu.sg/handle/10635/15947
Appears in Collections:Ph.D Theses (Open)

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