Paper Title:
Experimental Investigation of Ultrafast Thermalization Dynamics on Nickel Thin Films
  Abstract

In order to break the limitation of the speed of magnetic installation due to magnetic layer transfer characteristics, the ultrafast thermalization dynamic of Ni films and its composite films were studied by femtosecond laser pump-probe technique. The paper focuses on the research of the effect of cooling layer and annealing on the transient reflectivity curves. And the transient reflectivity signals of Ni films prepared under different parameters were measured. The results show that the cooling layer with the larger electron heat capacity constant and the stronger electron-phonon coupling constant can enhance the scattering efficiency of transient heat conduction. Compared to the unannealed sample, the composite film sample after annealing has faster recovery process.

  Info
Periodical
Edited by
Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
Pages
370-373
DOI
10.4028/www.scientific.net/KEM.464.370
Citation
N. F. Ren, Q. Y. Chen, M. L. Xu, W. F. Jin, "Experimental Investigation of Ultrafast Thermalization Dynamics on Nickel Thin Films", Key Engineering Materials, Vol. 464, pp. 370-373, 2011
Online since
January 2011
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Price
$32.00
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