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 π-d hybridization in CFB/Alq3 enhances the coercive field and significantly modifies the shape and size of the magnetic domains. A ∼100% increase in uniaxial anisotropic energies and a reduction in magnetic damping are also evident owing to the strong interfacial hybridization.
@article{arxiv.2401.00487,
title = {Spinterface Mediated Magnetic Properties of Co20Fe60B20/Alq3 Heterostructures},
author = {Swayang Priya Mahanta and Antarjami Sahoo and Sagarika Nayak and T. P. A. Hase and Del Atkinson and Subhankar Bedanta},
journal= {arXiv preprint arXiv:2401.00487},
year = {2024}
}