Microstructural origin of the perpendicular anisotropy in M-type barium hexaferrite thin films deposited by RF magnetron sputtering

Sui, Xiaoyu; Kryder, M.H.; Wong, Bunsen Y.; Laughlin, David E.

doi:10.1109/20.281291

Cited by 73 publications

(28 citation statements)

References 9 publications

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“…The x-ray diffraction study on the as-deposited barium and strontium ferrite films also showed them to be amorphous. 7,15,16 The absence of certain peaks in the thin films could be due to some sort of texture in the thin films.…”

Section: A Xrdmentioning

confidence: 99%

Study of magnetization and crystallization in sputter deposited LiZn ferrite thin films

Dash

Prasad

Venkataramani

et al. 1999

Journal of Applied Physics

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Direct detection of magnon spin transport by the inverse spin Hall effect Appl. Phys. Lett. 100, 082405 (2012) Ferromagnetic resonance of micro-and nano-sized hexagonal ferrite powders at millimeter waves J. Appl. Phys. 111, 07E113 (2012) Tuning the cation distribution and magnetic properties of single phase nanocrystalline Dy3Fe5O12 garnet J. Appl. Phys. 111, 07A517 (2012) Evolution of crystallographic texture and magnetic properties of polycrystalline barium ferrite thick films with Bi2O3 additive J. Appl. Phys. 111, 07A511 (2012) Field-induced magnetic transition in cobalt-ferrite J. Appl. Phys. 111, 07E308 (2012) Additional information on J. Appl. Phys. with xϭ0.32 were rf sputter deposited on fused quartz substrates at ambient temperature. The as-deposited films were found by x-ray diffraction to be amorphous but magnetic, and showed large high field susceptibility. The films were studied after they were annealed at various temperatures up to 850°C. It was observed that the films crystallize upon annealing and the value of the saturation magnetization increases with annealing temperature. The high field susceptibility, on the other hand, decreases with increasing anneal temperature. The measured ferromagnetic resonance spectra of these films indicated that the films consist of at least two different magnetic materials. A significant portion in the film crystallizes and the value of saturation magnetization of this portion tends to the bulk value as annealing temperature is increased. However, a small portion of the film remains in a highly defective state all through, even up to annealing temperatures of 850°C. The high field susceptibility data indicates that point defects could play an important role in determining the magnetic properties of these films.

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Section: A Xrdmentioning

confidence: 99%

Study of magnetization and crystallization in sputter deposited LiZn ferrite thin films

Dash

Prasad

Venkataramani

et al. 1999

Journal of Applied Physics

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show abstract

“…4, which suggests good c-axis orientation perpendicular to the film plane. To explain this effect, we refer to the work of Sui et al [22]. This work suggested that the platelet grains have a c-axis orientation perpendicular to the film plane and that the acicular grains have a c-axis orientation in the film plane.…”

Section: Magnetic Propertiesmentioning

confidence: 94%

Fabrication, crystallographic and magnetic properties of SrM perpendicular films on Au nano-dot arrays

Kaewrawang

Ghasemi

Liu

et al. 2010

Journal of Alloys and Compounds

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“…It has been shown previously that the crystallization of hexaferrites is a very slow process 30 and that other techniques for film preparation also require annealing. [31][32][33][34][35] The substrate temperature reached a maximum of 400 • C for these experiments; this is too low, if we consider that 600-900 • C 14 is necessary for the higher crystallinity of the hexaferrites. In order to promote the crystallization of Ba hexaferrite the coatings were annealed.…”

Section: The Ba Hexaferrite Coatingsmentioning

confidence: 98%

Preparation of barium hexaferrite coatings using atmospheric plasma spraying

Lisjak

Bobzin

Richardt

et al. 2009

Journal of the European Ceramic Society

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Microstructural origin of the perpendicular anisotropy in M-type barium hexaferrite thin films deposited by RF magnetron sputtering

Cited by 73 publications

References 9 publications

Study of magnetization and crystallization in sputter deposited LiZn ferrite thin films

Study of magnetization and crystallization in sputter deposited LiZn ferrite thin films

Fabrication, crystallographic and magnetic properties of SrM perpendicular films on Au nano-dot arrays

Preparation of barium hexaferrite coatings using atmospheric plasma spraying

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