Tailoring the electronic properties of Ca$_2$RuO$_4$ via epitaxial strain

B. J. Kim; B. Keimer; C. Dietl; D. Putzky; G. Christiani; G. Logvenov; P. A. van Aken; P. Wochner; S. Ibrahimkutty; S. K. Sinha

arxiv: 1710.01676 · v1 · pith:LVJKJC3Dnew · submitted 2017-10-04 · ❄️ cond-mat.str-el

Tailoring the electronic properties of Ca₂RuO₄ via epitaxial strain

C. Dietl , S. K. Sinha , G. Christiani , Y. Khaydukov , T. Keller , D. Putzky , S. Ibrahimkutty , P. Wochner

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G. Logvenov P. A. van Aken B. J. Kim B. Keimer

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classification ❄️ cond-mat.str-el

keywords epitaxialfilmsmetallicphasestrainbulkelectronicferromagnetic

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We report the synthesis of Ca$_2$RuO$_4$ thin films on NdCaAlO$_{4}$ (110), LaAlO$_3$ (100) and LaSrAlO$_4$ (001) substrates and show that epitaxial strain induces a transition from the Mott-insulating phase of bulk Ca$_2$RuO$_4$ into a metallic phase. Magnetometry and spin-polarized neutron reflectometry reveal a low-temperature, small-moment ferromagnetic state in metallic Ca$_2$RuO$_4$ films.

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Tailoring the electronic properties of Ca₂RuO₄ via epitaxial strain

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