Influence of rare earth addition in cobalt ferrite thin films obtained by pulsed laser deposition

Abstract The influence of rare earth (RE = Dy, Gd, Yb) ion doping on the structural, magnetic and optical properties of cobalt ferrite thin films was studied. CoFe 2-x RE x O 4 (x = 0.01; 0.03; 0.05; 0.1; 0.2; 0.3) films were obtained by pulsed laser deposition on silicon substrates. The X-ray diffraction and Raman spectroscopy results on the bulk materials, which were used as targets during deposition, revealed the formation of residual phases as the concentration of RE dopant was increased. However, the annealed thin films presented diffraction lines and vibrational modes corresponding only to cobalt ferrite. A lower crystallinity of the deposited samples was observed when higher RE concentrations were used. Due to the substitution of Fe by RE elements which possess large ionic radii, the lattice parameter of the thin films presented a monotonous increase. The magnetic response of the nanostructures was correlated to the magnetic moment of the RE dopant and to the structural properties of the films. The optical bandgaps derived from the reflectance spectra presented an increasing trend as the Yb and Dy concentrations were augmented.

[1]  Chunhua Yan,et al.  Sol-gel synthesis, magnetic and magneto-optical properties of CoFe2-xTbxO4 nanocrystalline films , 1999 .

[2]  Jiayue Xu,et al.  Preparation of ReFeO3 nanocrystalline powders by auto‐combustion of citric acid gel , 2009 .

[3]  J. Vijaya,et al.  Photocatalytic degradation of rhodamine B under visible light using nanostructured zinc doped cobalt ferrite: Kinetics and mechanism , 2017 .

[4]  C. Focsa,et al.  Femtosecond pulsed laser deposition of cobalt ferrite thin films , 2013 .

[5]  P. Shirage,et al.  Impact of different morphologies of CoFe2O4 nanoparticles for tuning of structural, optical and magnetic properties , 2019, Journal of Alloys and Compounds.

[6]  M. Guennou,et al.  Raman spectroscopy of rare-earth orthoferrites R FeO 3 ( R =La, Sm, Eu, Gd, Tb, Dy) , 2016, 1609.07987.

[7]  M. Oujja,et al.  Bulk and surface characterisation of micrometer-thick cobalt ferrite films grown by IR PLD , 2019, Applied Surface Science.

[8]  S. Pat,et al.  Characterization of a fast grown GaAs:Sn thin film by thermionic vacuum arc , 2015, Journal of Materials Science: Materials in Electronics.

[9]  R. Xie,et al.  Orientation-dependent structural and photocatalytic properties of LaCoO3 epitaxial nano-thin films , 2018, Royal Society Open Science.

[10]  H. Shokrollahi,et al.  The role of cobalt ferrite magnetic nanoparticles in medical science. , 2013, Materials science & engineering. C, Materials for biological applications.

[11]  Lawrence Kumar,et al.  Effect of Ho3+ substitution on the cation distribution, crystal structure and magnetocrystalline anisotropy of nanocrystalline cobalt ferrite , 2014 .

[12]  Debarati Bhattacharya,et al.  Nanostructured PdO Thin Film from Langmuir-Blodgett Precursor for Room-Temperature H2 Gas Sensing. , 2016, ACS applied materials & interfaces.

[13]  K. Asokan,et al.  FTIR and Electrical Study of Dysprosium Doped Cobalt Ferrite Nanoparticles , 2014 .

[14]  S. Boumaza,et al.  Visible light induced hydrogen evolution on new hetero-system ZnFe2O4/SrTiO3 , 2010 .

[15]  L. Lezama,et al.  Exploring Reaction Conditions to Improve the Magnetic Response of Cobalt-Doped Ferrite Nanoparticles , 2018, Nanomaterials.

[16]  A. Salker,et al.  Influence of Co2+ distribution and spin-orbit coupling on the resultant magnetic properties of spinel cobalt ferrite nanocrystals , 2013 .

[17]  N. Park,et al.  Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9% , 2012, Scientific Reports.

[18]  M. Schubert,et al.  Current Stage of the Investigation of the Composition of Oxygen Precipitates in Czochralski Silicon Wafers , 2017 .

[19]  Venkata Sreenivas Puli,et al.  Chemical bonding and magnetic properties of gadolinium (Gd) substituted cobalt ferrite , 2015 .

[20]  Zhao Tingting,et al.  Effect of doping rare earths on magnetostriction characteristics of CoFe 2 O 4 prepared from spent Li-ion batteries , 2018 .

[21]  J. Kortus,et al.  Optical and magneto-optical study of nickel and cobalt ferrite epitaxial thin films and submicron structures , 2013 .

[22]  Jianmei Xu,et al.  Effects of Al3+ Substitution on Structural and Magnetic Behavior of CoFe2O4 Ferrite Nanomaterials , 2018, Nanomaterials.

[23]  Jianmei Xu,et al.  Magnetic and Mössbauer Spectroscopy Studies of Zinc-Substituted Cobalt Ferrites Prepared by the Sol-Gel Method , 2018, Materials.

[24]  P. Joy,et al.  High magnetostriction coefficient of Mn substituted cobalt ferrite sintered from nanocrystalline powders and after magnetic field annealing , 2013 .

[25]  C. Focsa,et al.  Rare earth doped cobalt ferrite thin films deposited by PLD , 2013 .

[26]  Khalid Mujasam Batoo,et al.  Magneto-structural behaviour of Gd doped nanocrystalline Co-Zn ferrites governed by domain wall movement and spin rotations , 2018, Ceramics International.

[27]  B. Cai,et al.  Optical and electronic properties of NiFe2O4 and CoFe2O4 thin films , 2012 .

[28]  Chunhua Yan,et al.  Microstructure, magnetic, and magneto-optical properties of chemical synthesized Co–RE (RE=Ho, Er, Tm, Yb, Lu) ferrite nanocrystalline films , 1999 .

[29]  Hongbing Yu,et al.  Enhanced infrared radiation properties of CoFe2O4 by single Ce3+-doping with energy-efficient preparation , 2014 .

[30]  M. Rahimi‐Nasrabadi,et al.  Nanocrystalline Ce-doped copper ferrite: synthesis, characterization, and its photocatalyst application , 2016, Journal of Materials Science: Materials in Electronics.

[31]  K. Gross,et al.  Spinel ferrite oxide semiconductor gas sensors , 2016 .

[32]  A. Pui,et al.  Rare earth metals' influence on the heat generating capability of cobalt ferrite nanoparticles , 2016 .

[33]  Deepansh Sharma,et al.  Tailoring the optical bandgap and magnetization of cobalt ferrite thin films through controlled zinc doping , 2016 .

[34]  O. Caltun,et al.  Structural, electric and magnetic properties of CoFe1.8RE0.2O4 (RE=Dy, Gd, La) bulk materials , 2013 .

[35]  O. Caltun,et al.  Magnetic Measurements of RE-Doped Cobalt Ferrite Thin Films , 2013, IEEE Transactions on Magnetics.

[36]  M. R. Toroghinejad,et al.  Enhanced magneto-optical Kerr effect in rare earth substituted nanostructured cobalt ferrite thin film prepared by sol–gel method , 2016 .

[37]  M. Cazacu,et al.  STRUCTURAL , MAGNETIC AND HUMIDITY SENSING PROPERTIES OF RARE EARTH DOPED COBALT FERRITE THIN FILMS SYNTHESIZED BY PULSED LASER DEPOSITION , 2018 .

[38]  Xiaofei Wu,et al.  Effect of the rare-earth substitution on the structural, magnetic and adsorption properties in cobalt ferrite nanoparticles , 2016 .

[39]  I. Dumitru,et al.  Effect of rare earth substitution in cobalt ferrite bulk materials , 2015 .

[40]  S. Jaganathan,et al.  Structural, morphological, enhanced magnetic properties and antibacterial bio-medical activity of rare earth element (REE) cerium (Ce3+) doped CoFe2O4 nanoparticles , 2019, Journal of Magnetism and Magnetic Materials.

[41]  Vinod Kumar,et al.  Augmenting the photocatalytic performance of cobalt ferrite via change in structural and optical properties with the introduction of different rare earth metal ions , 2019, Ceramics International.

[42]  S. Bhoraskar,et al.  Investigation of structural, optical and magnetic properties of thermal plasma synthesized Ni-Co spinel ferrite nanoparticles , 2017 .