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Permalloy thin films obtained by pulsed laser deposition: magnetic and galvanomagnetic behaviour

M. NEAGU1,* , M. LOZOVAN2, M. DOBROMIR1, L. VELICU1, C. HISON3, S. STRATULAT1

Affiliation

  1. “Al. I. Cuza” Univ., 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 and PROMETE spin-off CNR-INFM, Università "Federico II", P.le V. Tecchio 80, 80125 Napoli, Italy

Abstract

Results concerning the bulk and surface coercivity as well as Hall voltage of Permalloy (Ni80Fe20) thin films, prepared by pulsed laser deposition, are presented. The samples were tested in as-deposited state as well as after thermal treatment in furnace, at temperatures between 330oC-370oC, for 30-60 minutes. For the as-deposited samples, the surface coercivity is up to about 14% higher than the bulk one. After thermal treatment, a decrease up to about 54 % of the bulk coercivity and an increase of about four times in the Hall voltage value are obtained..

Keywords

Galvanomagnetic properties, Magnetic properties, Permalloy, Thin films.

Submitted at: Sept. 25, 2007
Accepted at: March 17, 2008

Citation

M. NEAGU, M. LOZOVAN, M. DOBROMIR, L. VELICU, C. HISON, S. STRATULAT, Permalloy thin films obtained by pulsed laser deposition: magnetic and galvanomagnetic behaviour, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 3, pp. 632-634 (2008)