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Spinterface Mediated Magnetic Properties of Co20Fe60B20/Alq3 Heterostructures

Spinterface Mediated Magnetic Properties of Co20Fe60B20/Alq3 Heterostructures

Authors :
Mahanta, Swayang Priya
Sahoo, Antarjami
Nayak, Sagarika
Hase, T. P. A.
Atkinson, Del
Bedanta, Subhankar
Publication Year :
2023

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.

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2401.00487
Document Type :
Working Paper