FePt/BN granular films for high-density recording media

Daniil, Maria; Farber, P.; Okumura, Hideyuki; Hadjipanayis, G. C.; Weller, D.

doi:10.1016/s0304-8853(02)00097-5

Cited by 63 publications

(21 citation statements)

References 7 publications

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“…Generally, the FePt thin films deposited at room temperature are face-centered cubic (FCC) phase and show soft-magnetic behavior [2], a high annealing temperature above 550°C is needed for the ordering of face-centered tetragonal (FCT) L10 phase FePt [3]. Several methods have been used for reducing the ordering temperature and enhancing the perpendicular magnetic anisotropy (PMA) of the L10 phase FePt thin films, for example, i) introduction of an underlayer, ii) introduction of a cap layer, and iii) addition of a third element to form a ternary alloy compound.…”

Section: Introductionmentioning

confidence: 99%

Effects of Ru and Ag cap layers on microstructure and magnetic properties of FePt ultrathin films

Jin¹,

Liang²,

Cao³

et al. 2016

Nano Online

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Section: Introductionmentioning

confidence: 99%

Effects of Ru and Ag cap layers on microstructure and magnetic properties of FePt ultrathin films

Jin¹,

Liang²,

Cao³

et al. 2016

Nano Online

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“…In previous studies, the ordered CoPt [10] and FePt [11][12] films with (001) preferred orientation were deposited on the Ag underlayer by DC magnetron sputtering. Nonmagnetic BN-doping is of great benefit for getting small particle sizes, isolating magnetic grains, and improving (001)-texture [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Ag layers on the microstructure and magnetic properties of CoPt/BN multilayer films

Lü

Wang

2011

Rare Metals

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Ag/[BN/CoPt] 5 /Ag and [BN/Ag/CoPt] 5 /Ag thin films were deposited on glass substrates by magnetron sputtering and then annealed in vacuum at 600°C for 30 min. The structures and magnetic properties of CoPt/BN multilayer films were investigated as a function of Ag layer thickness. It was found that the face-centered tetragonal (fct) (001) texture of CoPt was improved greatly by introducing the Ag toplayer or sublayer together with an Ag underlayer. Good (001)-oriented growth, low intergrain interactions as well as high perpendicular anisotropy can be obtained in the Ag(3 nm)/[BN(2.5 nm)/CoPt(3 nm)] 5 /Ag(7 nm) and [BN(2.5 nm)/Ag(2 nm)/CoPt(3 nm)] 5 /Ag(10 nm) films, which become potential candidates for ultrahigh density magnetic recording media.

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“…By adding nonmagnetic materials (C, B 2 O 3 , Au, MgO, TiN, Cu, Al 2 O 3 , BN, etc) into FePt thin film during sputtering process, it was found that FePt magnetic grains grow in the nonmagnetic matrix and form granular thin films where smaller magnetic grain size and reduced inter-grain exchange coupling were achieved [5][6][7][8][9][10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Ag addition on the microstructure and magnetic properties of FePt thin films

Cheng

Yang

Dong

et al. 2008

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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FePt thin films and [FePt/Ag] n multilayer thin films were prepared by magnetron sputtering technique and subsequent annealing process. By comparing the microstructure and magnetic properties of these two kinds of thin films, effects of Ag addition on the structure and properties of FePt thin films were investigated. Proper Ag addition was found helpful for FePt phase transition at lower annealing temperature. With Ag addition, the magnetic domain pattern of FePt thin film changed from maze-like pattern to more discrete island-like domain pattern in [FePt/Ag] n multilayer thin films. In addition, introducing nonmagnetic Ag hindered FePt grains from growing larger. The in-depth defects in FePt films and [FePt/Ag] n multilayer films verify that Ag addition is attributed to a large number of pinning site defects in [FePt/Ag] n film and therefore has effects on its magnetic properties and microstructure.

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FePt/BN granular films for high-density recording media

Cited by 63 publications

References 7 publications

Effects of Ru and Ag cap layers on microstructure and magnetic properties of FePt ultrathin films

Effects of Ru and Ag cap layers on microstructure and magnetic properties of FePt ultrathin films

Effects of Ag layers on the microstructure and magnetic properties of CoPt/BN multilayer films

Effect of Ag addition on the microstructure and magnetic properties of FePt thin films

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