Molecular Anisotropic Magnetoresistance

Abstract

Using density functional theory calculations, we demonstrate that the effect of anisotropic magnetoresistance (AMR) can be enhanced by orders of magnitude with respect to conventional bulk ferromagnets in junctions containing molecules sandwiched between ferromagnetic leads. We study ballistic transport in metal-benzene complexes contacted by $3d$ transition-metal wires. We show that the gigantic AMR can arise from spin-orbit coupling effects in the leads, drastically enhanced by orbital-symmetry filtering properties of the molecules. We further discuss how this molecular anisotropic magnetoresistance (MAMR) can be tuned by proper choice of materials and their electronic properties.

References in corpus (7)

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Cited by in corpus (2)

• Proposal for all-electrical skyrmion detection in van der Waals tunnel junctions
• Giant anisotropic magnetoresistance through a tilted molecular $\pi$-orbital