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Regensburg 2019 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 17: Poster Session: Correlated Electrons 1

TT 17.34: Poster

Montag, 1. April 2019, 15:00–18:30, Poster D

Insitu-SQUID studies of Fe3O4 and V2O3 upon electrochemical lithiation — •Lukas Deeg, Elisa Thauer, Michael Richter, and Rüdiger Klingeler — Kirchhoff Institut für Physik, Universität Heidelberg, D-69120 Heidelberg, Germany

A re-usable in-situ-SQUID electrochemical cell for magnetisation studies during electrochemical cycling is presented. The proof of function is demonstrated by recording reversible magnetisation changes in LixFe3O4 nanoparticles upon electrochemical cycling. The data imply the transition from inverse spinel structure (x=0) to a rocksalt phase (x=2). In addition, the setup is utilised to study the effect of lithiation on the Mott-Hubbard transition in V2O3.

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