Structural and Magnetic Characterizations of 200 MeV Ag15+ Irradiated BixCo2-xMnO4 Thin Films

Nhalil E. Rajeevan; Ravi Kumar; D.K. Shukla; P. Thakur; P.P. Pradyumnan

doi:10.4028/www.scientific.net/KEM.547.71

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 547Structural and Magnetic Characterizations of 200...

Structural and Magnetic Characterizations of 200 MeV Ag¹⁵⁺ Irradiated Bi_xCo_2-xMnO₄ Thin Films

Abstract:

The effect of swift heavy ion (SHI) irradiation on the structural and magnetic properties of thin films of Bi-substituted Co2MnO4 prepared by Pulsed Laser Deposition (PLD) is presented. XRD analysis reveals that the BixCo2-x MnO4 (x = 0.0, 0.1 & 0.3) films grown on amorphous quartz, and crystalline LaAlO3 (LAO) exhibited single phase cubic spinel structure with low strain before and after the irradiation at 200 MeV Ag15+ ions at three fluence values 1 × 1011, 5 × 1011 and 1 × 1012 ions/cm2. DC magnetization hysteresis loop study of the films revealed a ferrimagnetic ordering below the transition temperature ~ 185 K and the saturation magnetization was increased by the irradiation at optimal fluence value 51011 ions/cm2. X-ray Magnetic Circular Dichroism (XMCD) studies showed the antiparallel alignments of Co and Mn magnetic moments.

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Key Engineering Materials (Volume 547)

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71-77

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https://doi.org/10.4028/www.scientific.net/KEM.547.71

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April 2013

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Nhalil E. Rajeevan, Ravi Kumar, D.K. Shukla, P. Thakur, P.P. Pradyumnan

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Multiferroic, SHI Irradiation, XMCD

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