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Chinese Physics Letters Volume 26 Number 11 Create an alert RSS this journal

Shahid M. Ramay et al 2009 Chinese Phys. Lett. 26 117504 doi:10.1088/0256-307X/26/11/117504

Effect of Temperature on Structural and Magnetic Properties of Laser Ablated Iron Oxide Deposited on Si(100)

Shahid M. Ramay1, Saadat A. Siddiqi1, M. Sabieh Anwar2 and S. C. Shin3

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Abstract References

CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

We fabricate Fe3O4 thin films on Si(100) substrates at different temperatures using pulsed laser deposition, and study the effect of annealing and deposition temperature on the structural and magnetic properties of Fe3O4 thin films. Subsequently, the films are characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometery (VSM). The XRD results of these films confirm the presence of the Fe3O4 phase and show room-temperature ferromagnetism, as observed with VSM. We demonstrate the optimized deposition and annealing conditions for an enhanced magnetization of 854 emu/cm3 that is very high when compared to the bulk sample.


PACS

68.55.-a Thin film structure and morphology

75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects

81.15.Fg Laser deposition

81.40.Ef Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization

75.70.Ak Magnetic properties of monolayers and thin films

68.55.A- Nucleation and growth

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Condensed matter: structural, mechanical & thermal

Dates

Issue 11 (November 2009)

Received 20 April 2009



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