Spin-dependent transport through a magnetic Möbius strip: comparison with a regular magnetic cylinder

Article Type

Research Article

Publication Title

European Physical Journal Plus

Abstract

In this work, we explore conformational effect on spin selective electron transmission considering a magnetic Möbius strip, a one-sided nonorientable surface. Unlike a regular magnetic cylinder, having a two-sided surface, a magnetic MS exhibits several peculiar phenomena in the presence of magnetic scattering of itinerant electrons with local magnetic moments at different lattice sites of the strip. Employing a tight-binding framework to describe the system, we use Green’s function formalism to investigate spin-dependent transport phenomena. Vertical hopping plays an important role, and for suitable hopping strength, we can have a high degree of spin polarization (> 80 %) for a wide bias window, even when the Fermi energy is set at zero. The effects of ring size, system temperature, interface sensitivity, and spin-dependent scattering factor are critically investigated. A comparative analysis with a regular magnetic cylinder is also given, to reveal the impact of the topology.

DOI

https://10.1140/epjp/s13360-023-04178-9

Publication Date

6-1-2023

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