Effect of deposition time on structural and magnetic properties of pulse laser deposited hard-soft composite films

International Conference on Recent Trends in Physics 2016

Satalkar, M.^1 ; Kane, S.N.^1 ; Pasko, A.^2,3 ; LoBue, M.^2,3 ; Mazaleyrat, F.^2,3

School of Physics, D. A. University, Khandwa Road Campus, Indore

452001, India^1

UGC-DAE CSR, University Campus, Khandwa Road, Indore

452 001, India^2

SATIE, ENS de Cachan, CNRS, UniverSud, Av. du Pdt. Wilson, Cachan

F-94230, France^3

关键词: Deposition time;    Hard-soft composites;    Magnetic ions;    Pulse laser;    Secondary phase;    Si (100) substrate;    Structural and magnetic properties;    Vibrating sample magnetometer;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/755/1/012043/pdf
DOI  :  10.1088/1742-6596/755/1/012043

来源: IOP

【 摘 要 】

Hard-soft composite (BaFe12O19:Mg0.1Ni0.3Zn0.6Fe2O4(2:1) films, were deposited by 'Pulsed Laser Deposition' (PLD) technique on Si (100) substrate using different deposition time - 30, 60, 90 and 120 minutes. Influence of deposition time on structural and magnetic properties were studied via X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). XRD confirms the presence of soft and hard phases in all the prepared thin films. Small amount of secondary phase - Fe2O3is also detected in all the thin films except for the deposition time - 90 mins. With deposition time average grain diameter of both hard (BaFe12O19) and soft (Mg0.1Ni0.3Zn0.6Fe2O4) phase increases. Increase in the distance between the magnetic ions (Ni2+and Fe3+) at tetrahedral (A) and octahedral [B] site leads to increase in the hopping length at A and B site except for the the deposition time of 60 minutes. Magnetic measurements shows that the coercivity and magnetization of the prepared thin films respectively ranges between 112.07 - 213.03 Oe and 1.4 x 10-7- 3.15 x 10-7Am2.