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Optical and magneto-optical studies of Fe-Cu-Nb-Si-B amorphous thin films deposited by pulsed laser ablation

M. NEAGU1,* , M. DOBROMIR1, G. POPA1, H. CHIRIAC2, GH. SINGUREL1, C. HISON3, N. APETROAIEI1

Affiliation

  1. ”Alexandru Ioan Cuza” University, Faculty of Physics, 11 Carol I Blvd. 700506 Iasi, Romania
  2. National Institute of R&D for Technical Physics, 47 Mangeron Blvd., 700050 Iasi, Romania
  3. Coherentia CNR-INFM&PROMETE Spin-off CNR-INFM, "Federico II” University, 80 P-le Tecchio, 80125 Napoli, Italy

Abstract

Soft magnetic Fe-Cu-Nb-Si-B amorphous thin films with thickness ranging between 100-200 nm have been prepared onto glass and silicon substrates by means of pulsed laser ablation of amorphous Fe73.5Cu1Nb3Si15.5B7 ribbons. The values of the refraction and extinction indices at 632.8 nm were found to be 2 and 2.3, respectively. The surface coercivity increases with the increase of the film thickness. For the same thickness, the coercivity of the films deposited onto silicon substrates is about 35% smaller..

Keywords

Amorphous thin films, Ellipsometry, Hysteresis loops, Magneto-optical Kerr effect, Pulsed laser deposition.

Submitted at: Sept. 5, 2006
Accepted at: Sept. 13, 2006

Citation

M. NEAGU, M. DOBROMIR, G. POPA, H. CHIRIAC, GH. SINGUREL, C. HISON, N. APETROAIEI, Optical and magneto-optical studies of Fe-Cu-Nb-Si-B amorphous thin films deposited by pulsed laser ablation, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 5, pp. 1755-1757 (2006)