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O: Fachverband Oberflächenphysik
O 64: Surface Magnetism
O 64.7: Vortrag
Mittwoch, 11. März 2026, 17:00–17:15, HSZ/0403
Tailoring Robust 1D Atomic and Electronic Textures in Mn Ultrathin Films on Fe(110) via Antiferromagnet-Ferromagnet Interfaces — •Toyo Kazu Yamada1,2, Eiichi Inami3, and Peter Krueger1,2 — 1Dept. Materials Science, Chiba Univ., Chiba, Japan — 2Molecular Chirality Res. Centre, Chiba Univ., Chiba, Japan — 3School of Systems Engineering, Kochi Univ. Tech., Kochi, Japan
Controlling the dimensionality of electronic states on two-dimensional (2D) surfaces has remained a significant challenge over decades. In particular, achieving one-dimensional (1D) electronic ordering on 2D surface could enable anisotropic quantum transport and support quantum-confined functional units for nanoscale device integration. In this study, we demonstrate that even conventional 3d transition metals, ferromagnetic (FM) Fe and antiferromagnetic (AFM) Mn, can give rise to 1D atomic stripe patterns in the local density of states (LDOS) on a 2D surface. This study investigates the emergence of one-dimensional (1D) atomic and electronic ordering in ultrathin manganese (Mn) films grown on atomically flat Fe(110) substrates. By combining scanning tunneling microscopy/spectroscopy (STM/STS) and density functional theory (DFT), we demonstrate that the interplay between antiferromagnetic and ferromagnetic interactions at the interface leads to robust 1D stripe electronic textures that remain stable even at room temperature, persisting in the presence of atomic-scale defects.
Keywords: antiferromagnet; ferromagnet; stripe; frustration; scanning tunneling microscopy