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arXiv · 2401.00487

Spinterface Mediated Magnetic Properties of Co20Fe60B20/Alq3 Heterostructures

Swayang Priya Mahanta·Antarjami Sahoo·Sagarika Nayak·T. P. A. Hase·Del Atkinson·Subhankar Bedanta
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Abstract

Organic semiconductors (OSCs) are suitable materials for spintronics applications as they form a spinterface when placed next to a ferromagnet, which in turn leads to novel functionalities. The evolution of spinterface can tune the global magnetic anisotropy, magnetization reversal, magnetization dynamics, etc. Planar tris-(8-hydroxyquinoline)aluminum (Alq3) OSC has shown tremendous potential for spintronics applications, thanks to its efficient spin-polarized current transport ability. Here, we establish the spinterface when the Alq3 molecules are deposited on amorphous ferromagnet Co20Fe60B20(CFB). The $\pi$-d hybridization in CFB/Alq3 enhances the coercive field and significantly modifies the shape and size of the magnetic domains. A $\sim$100% increase in uniaxial anisotropic energies and a reduction in magnetic damping are also evident owing to the strong interfacial hybridization.

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Swayang Priya Mahanta, Antarjami Sahoo, Sagarika Nayak, T. P. A. Hase, Del Atkinson, Subhankar Bedanta. 2023-12-31. Spinterface Mediated Magnetic Properties of Co20Fe60B20/Alq3 Heterostructures. https://arxiv.org/abs/2401.00487

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