Journal
AIP ADVANCES
Volume 11, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/9.0000173
Keywords
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Funding
- Inter-University Accelerator Centre, New Delhi
- UGC, New Delhi, India
- UGC DAE CSR, Indore, India
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The study synthesized ferromagnetic Co-doped TiO2 thin films at room temperature using RF sputtering and ion irradiation with 100 MeV Au ions. Increasing Au-ion fluence results in higher surface roughness of the film and alters its magnetic properties.
Ferromagnetic Co-doped TiO2 thin films at room temperature have been synthesized by RF sputtering and ion-irradiated with 100 MeV Au ions. The surface roughness of the film increases with increasing Au-ion fluence. Kerr microscopy measurements at room temperature give isotropic hysteresis loop with negligible coercivity, which gets modified into in-plane uniaxial magnetic anisotropy after anion fluence of 5x10(11) ions/cm(2). Further ion-irradiation reduced the coercivity of the film. X-ray magnetic circular dichroism (XMCD) measurements have been performed in total electron yield mode, to investigate the effects of ion-irradiation on magnetic properties of the Co-doped TiO2 thin films. From the XMCD analysis, we observed that the total magnetic moment of Co atoms in case of as-deposited film is mu B. After the ion-irradiation it became mu Batroomtemperature.
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