CoPt/Ag nanocomposites with (001) texture

Karanasos, V.; Panagiotopoulos, I.; Niarchos, D.; Okumura, H.; Hadjipanayis, G. C.
August 2001
Applied Physics Letters;8/27/2001, Vol. 79 Issue 9, p1255
Academic Journal
CoPt/Ag nanocomposites with the tetragonal (L1[sub 0]) structure have been prepared by magnetron sputtering. The dependence of texture on film thickness, bilayer thickness, CoPt volume fraction, and annealing conditions is investigated. Films with a thickness below 15 nm consist of islands with (001) texture while as the thickness increases, the islands coalesce into a continuous film and the (111) texture appears. Microstrain is minimized in the range of film thickness where the (001) texturing is optimum indicating that strain energy provides the driving force of (001) growth texturing. The (001) texture improves with CoPt volume fraction for all annealing times but disappears above 95 vol % indicating that the existence of the Ag plays an important role in the development of the (001) texture. © 2001 American Institute of Physics.


Related Articles

  • Nanocomposite CoPt:C films for extremely high-density recording. Yu, M.; liu, Y.; Moser, A.; Weller, D.; Sellmyer, D.J. // Applied Physics Letters;12/20/1999, Vol. 75 Issue 25, p3992 

    Investigates nanocomposite CoPt:C films as potential media for extremely high-density recording. Annealing temperature necessary to form nanocomposite CoPt:C films consisting of carbon (C) matrix and fct cobalt platinum (CoPt) nanocrystallites; Insensitivity of coercivity and grain size to film...

  • Microstructure and magnetization reversal of L10-FePt/[Co/Pt]N exchange coupled composite films. Guo, H. H.; Liao, J. L.; Ma, B.; Zhang, Z. Z.; Jin, Q. Y.; Wang, H.; Wang, J. P. // Applied Physics Letters;4/2/2012, Vol. 100 Issue 14, p142406 

    Two series of perpendicular exchange coupled composites (ECC) films are prepared by dc magnetron sputtering, FePt(5)/[Co(0.2)/Pt(0.3)]N (ECC-I-N) and FePt(5)/[Co(0.2)/Pt(0.6)]N (ECC-II-N), respectively. Structure analyses reveal the epitaxial growth on (001) oriented L10 FePt island-like grains...

  • Suppression of deposition rate variations and of structural changes in the characteristics of... Furuya, Akinori; Hirono, Shigeru // Journal of Applied Physics;1/15/2000, Vol. 87 Issue 2, p939 

    Presents information on a study described the effect of the target magnetic field on the plasma process and physical properties of magnetic films deposited by magnetically controlled planar magnetron sputtering techniques. Experimental details; Results and discussion; Conclusions.

  • Study of magnetic thin films deposited by closed-field unbalanced magnetron sputtering. Ormston, M. W.; Petford-Long, A. K. // Journal of Applied Physics;4/15/1999 Part 2B of 2, Vol. 85 Issue 8, p5747 

    Presents information on a study which examined the magnetic films deposited by closed-field unbalanced magnetron sputtering. Experimental procedure; Results and discussion; Conclusions.

  • Strong magnetoelectric coupling at microwave frequencies in metallic magnetic film/lead zirconate titanate multiferroic composites. Pettiford, C.; Lou, J.; Russell, L.; Sun, N. X. // Applied Physics Letters;3/24/2008, Vol. 92 Issue 12, p122506 

    Strong magnetoelectric coupling was observed at microwave frequencies in metallic magnetic film/lead zirconate titanate [Pb(Zr,Ti)O3] multiferroic composites, in which the magnetic films were either FeCoB or FeGaB with relatively high saturation magnetostriction constants between 40 and 70 ppm...

  • Fabrication of FePt type exchange coupled composite bit patterned media by block copolymer lithography. Wang, Hao; Rahman, M. Tofizur; Zhao, Haibao; Isowaki, Yosuke; Kamata, Yoshiyuki; Kikitsu, Akira; Wang, Jian-Ping // Journal of Applied Physics;Apr2011, Vol. 109 Issue 7, p07B754 

    We fabricated exchange coupled composite (ECC) L10 ordered, (001) oriented FePt (5nm)/Fe (5 nm) bit patterned media over a large area by diblock copolymer lithography. We formed the dot arrays of the copolymer directly on the magnetic film and used them as the etching mask. The average size of...

  • Magnetic properties and underlayer thickness in SmCo/Cr films. Romero, S. A.; Cornejo, D. R.; Rhen, F. M.; Neiva, A. C.; Tabacniks, M. H.; Missell, F. P. // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p6965 

    SmCo films with a Cr underlayer have been investigated as potentially attractive candidates for high density recording media. Magnetron sputtering was used here to produce Cr/SmCo[sub x]/Cr films on Si (100) substrates. The magnetic films were deposited at a substrate temperature of 350 °C...

  • Structure-property relationship of nanocrystalline Pr2Co14B-based hard magnetic film. Zhang, W. Y.; Shima, H.; Takano, F.; Akinaga, H.; Nimori, S. // Journal of Applied Physics;Dec2009, Vol. 106 Issue 11, p113912-1 

    Nanocrystalline Pr2Co14B-based films are deposited on two types of substrates at 600 °C by radio frequency magnetron sputtering. All samples are composed of a hard magnetic phase Pr2Co14B and a small amount of a soft magnetic phase Co3B. The film sputtered on the thermally oxidized silicon...

  • Nanoindentation Behavior of Nanolayered Metal-Ceramic Composites. Deng, X.; Cleveland, C.; Karcher, T.; Koopman, M.; Chawla, N.; Chawla, K. K. // Journal of Materials Engineering & Performance;Aug2005, Vol. 14 Issue 4, p417 

    Small-length scale multilayered structures are attractive materials due to their extremely high strength and flexibility, relative to conventional laminated composites. In this study, nanolayered laminated composites of Al and SiC were synthesized by DC/RF magnetron sputtering. The...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics