Filling control of the Mott insulator Ca2RuO4. Fukazawa, H. & Maeno, Y. Journal of the Physical Society of Japan, 70(2):460-467, The Physical Society of Japan, 2, 2001.
Filling control of the Mott insulator Ca2RuO4 [pdf]Paper  Filling control of the Mott insulator Ca2RuO4 [link]Website  abstract   bibtex   
We have grown single crystals of electron doping system Ca2-xLaxRuO4 (0.00 less than or equal to x less than or equal to 0.20) by a floating zone method. The first order metal/non-metal transition and canted antiferromagnetic ordering occur for 0.00 < x < 0.15, similar to those in the bandwidth controlled system Ca2-xSrxRuO4 (CSRO). However, comparing with CSRO, we found a rather different metallic ground state adjacent to the non-metallic ground state with canted anl;ferromagnetic order. Instead of short-range antiferromagnetic correlation found in CSRO (0.20 less than or equal to x < 0.50), the metallic ground state of the present system is characterized by strong ferromagnetic correlation.

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