Tailoring the electronic properties of Ca2RuO4 via epitaxial strain
Abstract
We report the synthesis of Ca2RuO4 thin films on NdCaAlO4 (110), LaAlO3 (100) and LaSrAlO4 (001) substrates and show that epitaxial strain induces a transition from the Mott-insulating phase of bulk Ca2RuO4 into a metallic phase. Magnetometry and spin-polarized neutron reflectometry reveal a low-temperature, small-moment ferromagnetic state in metallic Ca2RuO4 films.
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