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TT: Fachverband Tiefe Temperaturen

TT 46: Poster Session: Frustrated Magnets, Quantum Magnets, Charge Order and Complex Oxids

TT 46.15: Poster

Mittwoch, 18. März 2020, 15:00–19:00, P2/2OG

Electrical read out of the nuclear spin in Tb₂Pc₃ triple decker — •Luca Kosche^1,2, Philipp Schneider², Christoph Sürgers², Franck Balestro³, and Wolfgang Wernsdorfer^1,2,3 — ¹Institut für Nanotechnologie, KIT, Germany — ²Physikalisches Institut, KIT, Germany — ³Institut Néel, CNRS Grenoble, France

Single-molecular magnets (SMMs) have emerged as an excellent link between the two disciplines of spintronics and molecular electronics. Their ultimate small size, excellent single spin characteristics, and long coherence times at low temperatures make them promising candidates for fundamental quantum operations. In this project we investigate three terminal transistors comprising a SMM trapped in a nanometer sized gap coupled to a back gate thereby forming a quantum dot. The gap is achieved by electromigration of a gold junction fabricated by shadow evaporation. Recent low-noise electrical transport measurements enable the read out of the four nuclear spin states of a single terbium ion in a TbPc₂ double decker [1]. Here we pursue to investigate more complex multi-state systems such as the Tb₂Pc₃ triple decker to investigate the interactions between the two terbium nuclear spins.

[1] C. Godfrin et al. ACS Nano 11, 3984 (2017)