Dresden 2020 – wissenschaftliches Programm
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O 110.1: Vortrag
Donnerstag, 19. März 2020, 15:00–15:15, WIL A317
Magnetic properties of multilayer vanadyl phthalocyanine on Pb(111) — •Piotr Kot, Maximillian Uhl, Robert Drost, and Christian R. Ast — Max Planck Insitute for Solid State Research
Single-molecule magnets have been of great interest to the condensed matter community due to their potential applications in memory storage and quantum computing , and their inherent usefulness in studying fundamental quantum mechanics . Here we present a study of vanadyl phthalocyanine (VOPc) molecules which, when deposited in the correct conditions, form multilayer nano-crystals on the surface of Pb(111) with two possible molecular orientations at each layer. Only one of the VOPc orientations on the first layer shows a spin excitation with energy splitting consistent with a spin half system, which agrees with recent findings . The magnetic properties found on the second layer of molecules is also only observed in one of the molecular orientations, and shows strong zero-field splitting. This suggests that the way the first and second layer molecules interact with their environments varies significantly.
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