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Structural and magnetic aspects of the metal insulator transition in Ca$_{2-x}$Sr$_x$RuO$_4$

O. Friedt·M. Braden·G. Andre·P. Adelmann·S. Nakatsuji·Y. Maeno
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Abstract

The phase diagram of Ca$_{2-x}$Sr$_x$RuO$_4$ has been studied by neutron diffraction on powder and single-crystalline samples. The experiments reveal antiferromagnetic order and structural distortions characterized by tilts and rotations of the RuO$_6$-octahedra. There is strong evidence that the structural details of the isovalent samples tune the magnetic as well as the electronic behavior. In particular we observe for low Sr-concentration a metal insulator transition associated with a structural change and magnetic ordering.

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O. Friedt, M. Braden, G. Andre, P. Adelmann, S. Nakatsuji, Y. Maeno. 2000-07-13. Structural and magnetic aspects of the metal insulator transition in Ca$_{2-x}$Sr$_x$RuO$_4$. https://doi.org/10.1103/physrevb.63.174432

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