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SKM 2023 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 15: Spins on Surfaces at the Atomic Scale II

O 15.10: Vortrag

Montag, 27. März 2023, 17:15–17:30, REC C 213

Electron spin resonance of individual magnetic molecules on surfaces — •Wantong Huang1, Máté Stark1, Paul Greule1, Daria Sostina2, David Collomb1, Christoph Sürgers1, Wolfgang Wernsdorfer1, and Philip Willke11Physikalisches Institut (PHI), Karlsruhe Institute of Technology, Karlsruhe, Germany — 2Institute of Quantum Materials and Technologies (IQMT), Karlsruhe Institute of Technology, Karlsruhe, Germany

Single molecular magnets which consist of one central metal ion surrounded by ligands are promising building blocks for nanoscale spintronics and future quantum devices. The recent development of scanning tunnelling microscopy (STM) combined with electron spin resonance (ESR) constitutes here a powerful technique to image and coherently control individual molecular spins on surfaces [Zhang et. al, Nat. Chem. 14, 59 (2022); Willke, ACS Nano, 15, 11, 17959 ( 2021)]. Here, we explore the magnetic properties and spin dynamics of iron phthalocyanine (FePc) molecules adsorbed on magnesium oxide (MgO) grown on Ag(100). We investigate the magnetic properties of different FePc by scanning tunneling spectroscopy and ESR-STM. Such molecular magnetic structures provide a versatile platform to study complex magnetic interactions and atomic-scale spin dynamics.

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