Dresden 2026 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 23: Transport Properties
HL 23.6: Talk
Wednesday, March 11, 2026, 10:45–11:00, POT/0051
Quantum oscillations in the correlated metal CaVO3 — Olivio Chiatti1, Mahni Müller1, Maria Espinosa1, Tatiana Kuznetsova2, Roman Engel-Herbert2,3, and •Saskia F. Fischer1,4 — 1Novel Materials Group, Humboldt-Universität zu Berlin, 10099 Berlin, Germany — 2Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA — 3Paul-Drude-Institut für Festkörperelektronik, 10117 Berlin, Germany — 4Center for the Science of Materials Berlin, Humboldt-Universität zu Berlin, 12489 Berlin, Germany
Transparent conductive materials are in great demand in the optoelectronic industry for their high-performance and cost-effectiveness. Strong electron-electron interactions in correlated metals can enhance the carrier effective mass and allow to achieve both high-optical transparency and high-electrical conductivity [1].
Here, we study the electric transport properties of thin CaVO3 epitaxial films grown on LaAlO3 substrates by hybrid molecular beam epitaxy, with residual a high resistivity ratio (RRR) up to 98 [2]. Magnetortransport measurements were performed between 2 and 200 K in magnetic fields up to 64 T. Films with high RRR show quantum oscillations below 10 K. The analysis of the Shubnikov-de Haas oscillations provides parameters within a multi-carrier model and the implications for the complex Fermi surface of CaVO3 are discussed.
[1] Zhang et al., Nature Materials 15, 204 (2016)
[2] Kuznetsova et al., APL Materials 11, 041120 (2023)
Keywords: Transparent conductive material; CaVO3; Correlated metal; Quantum oscillations; Thin film