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    Magnetic ordering in nickel-zinc nanoferrite thin film formed by Langmuir Blodgett technique

    Year: 2013

    Journal: APPLIED PHYSICS LETTERS, Vol. 103, p -, 20150703

    Authors: Thakur, Sangeeta; Pandit, Pallavi; Sharma, S. K.; Katyal, S. C.; Singh, Mahavir; Gupta, Ajay

    Organizations: Jaypee Univ Informat Technol Waknaghat, Dept Phys, Solan 173251, India; Devi Ahilya Univ, Head Sch Phys, Indore, India; Univ Estadualde Campinas UNICAMP, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazil; Himachal Pradesh Univ, Dept Phys, Shimla, India; UGC DAE Consortium Sci Res, Indore, India

    Nickel-zinc nanoferrite thin films, which reveal application for magnetic materials, were prepared by Langmuir-Blodgett technique. X-ray reflectivity fitting was done using three layer model. Thickness of a monolayer of nanoparticles is obtained as 23.5 angstrom. Surface roughness increases as the thickness of the film increases. Fourier transform infrared spectra confirmed that the structure remains cubic spinel after thin film formation. We have measured zero-field cooled and field cooled magnetization and discussed the behavior in three parts: the ferromagnetic part, transition region, and the superparamagnetic part. (C) 2013 AIP Publishing LLC.