Effect of the underlayer (Ag, Ti or Bi) on the magnetic properties of Fe/Pt multilayer films

Feng, Chun; Li, B.H.; Han, Gang; Teng, Jun; Jiang, Yong; Yang, Tao; Yu, Guo

doi:10.1016/j.tsf.2007.03.181

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…The influence of additional Ag, Ti, Bi bottom layers on magnetic properties of [Fe/Pt] 13 multilayer films after annealing has been investigated in [14]. It has been shown that bottom Ag layer almost does not affect magnetic properties of the film composition.…”

Section: B Additional Layers Of Agmentioning

confidence: 99%

FePt Thin Films – Prospective Materials for Ultrahigh Density Magnetic Recording

Vladymyrskyi

Oleshkevych

Sidorenko

et al. 2016

JNanoR

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Constant increase of magnetic recording density requires application of modern ferromagnetic materials with high value of magnetic anisotropy constant and coercivity. Thin films on the bases of L10-FePt ordered phase is one of such materials. However, practical application of such materials requires to solve a number of materials science problems such as decrease of ordered phase formation temperature, formation of its predominantly oriented grains and increase of coercivity. Factors that affect structure formation and properties of FePt based films have been examined in this study. A number of modern studies aimed on solving problems mentioned above have been analyzed.

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Section: B Additional Layers Of Agmentioning

confidence: 99%

FePt Thin Films – Prospective Materials for Ultrahigh Density Magnetic Recording

Vladymyrskyi

Oleshkevych

Sidorenko

et al. 2016

JNanoR

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“…According to relevant literature reports, nonmagnetic particle coating in magnetic particle boundary can effectively reduce the noise of medium, and then improve its microstructure and magnetic properties. It has been reported that Ag is a good buffer layer for FePt and CoPt recording media [6,7]. Peng et al reported the effects of Ag layer thickness on magnetic properties and microstructure of Ag/Fe/Ag granular films [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Annealed Temperature on Microstructure and Magnetic Properties of Ag/Fe/Ag Nanogranular Films

Xu¹,

Ren²,

Li³

et al. 2016

Proceedings of the 2nd Annual International Conference on Advanced Material Engineering (AME 2016)

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Ag(3 nm)/Fe(35 nm)/Ag(3 nm) nanogranular films were fabricated by magnetron sputtering system onto glass substrates and subsequently annealed at different temperature. The microstructure and magnetic properties of Ag/Fe/Ag films were investigated as the annealed temperature increases from room temperature to 500 °C. The XRD patterns indicate that annealing disposal does not change crystal structure of the films. The SPM was used to get the morphology and magnetic domain structures, the SPM results reveal that the annealed temperature has a great effect on the average grain size. The VSM results show that out-of-plane coercivity reaches maximum about 3.3 kOe after annealed at 500 °C. The result of δM plot indicates that the intergranular interactions are mainly of magnetostatic interaction. It concludes that the reduction of exchange interaction and the enhancement of coercivity, which maybe result from the nonmagnetic silver atoms, diffuse into the grain boundaries of magnetic grains during annealing.

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“…In this way, the structure and magnetic properties of films are remarkably improved. The idea of diffusing metals from nonmagnetic underlayer and overlayer into magnetic grain boundaries have been reported for materials C, Cr [3], Pt [1,2], Ag [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], Al, Cu, and so on. And silver underlayer is quite advantageous to growing films.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Magnetic Properties of Ag/Fe/Ag Pseudo-Sandwich Nanogranular Films

Peng

et al. 2007

Chinese Journal of Chemical Physics

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Nanogranular Ag/Fe/Ag films were prepared by magnetron sputtering from a silver and an iron target onto glass substrates at room temperature and subsequent in situ annealing. The structural and magnetic properties of the films were investigated as a function of silver layer thickness and annealing temperature. X-ray diffraction shows the Fe(110) peak is formed in all the samples. Vibrating sample magnetometer measurements indicate that the magnetic moments lie well perpendicular to the film plane. Coercivity reaches the maximum in the sample annealed at 500 • C for 30 min with 3 nm Ag layer. A scanning probe microscope was used to scan surface morphology and magnetic domain structures. In as-deposited samples the average grain size and the average roughness is smaller than that the annealing samples. After annealing, the grain size is larger and the contrast of domains increases, but the domain size becomes smaller.

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Effect of the underlayer (Ag, Ti or Bi) on the magnetic properties of Fe/Pt multilayer films

Cited by 9 publications

References 15 publications

FePt Thin Films – Prospective Materials for Ultrahigh Density Magnetic Recording

FePt Thin Films – Prospective Materials for Ultrahigh Density Magnetic Recording

Effect of Annealed Temperature on Microstructure and Magnetic Properties of Ag/Fe/Ag Nanogranular Films

Microstructure and Magnetic Properties of Ag/Fe/Ag Pseudo-Sandwich Nanogranular Films

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