Paper Title:
Magnetic Properties of Single-Layered Fe100-xPtx Films by Rapid Thermal Annealing
  Abstract

Fe100-xPtx single-layered films with Pt contents (x) = 32~69 at.% were deposited on natural-oxidized Si(100) substrate by dc magnetron sputtering. Then the films were post-annealed at 700 °C for 3 min by a rapid thermal annealing (RTA) with a high heating ramp rate of 100 °C/sec. Experimental results show that FePt film presented (111) preferred orientation and tended to in-plane magnetic anisotropy as the content of Pt was 32 at.%. When the Pt content was increased to 55 at.%, (001)-textured FePt film was obtained and presented perpendicular magnetic anisotropy. Its out-of-plane coercivity (Hc⊥), saturation magnetization (Ms) and out-of-plane squareness (S⊥) reached to 12.7 kOe, 375 emu/cm3 and 0.8, respectively. These results reveal its significant potential as perpendicular magnetic recording media for high-density recording. Further increasing the Pt content to 69 at.%, the coercivity of FePt film was decreased drastically to below 1 kOe and tended towards in-plane magnetic anisotropy.

  Info
Periodical
Advanced Materials Research (Volumes 123-125)
Edited by
Joong Hee Lee
Pages
723-726
DOI
10.4028/www.scientific.net/AMR.123-125.723
Citation
C. L. Shen, T.H. Sun, C.L. Chang, S.C. Chen, G.P. Lin, K.T. Huang, S. L. Ou, P. C. Kuo, "Magnetic Properties of Single-Layered Fe100-xPtx Films by Rapid Thermal Annealing", Advanced Materials Research, Vols. 123-125, pp. 723-726, 2010
Online since
August 2010
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$32.00
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