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Single crystals of La 2-x M x CuO 4 (M = Ca, Sr, Ba) were grown by the TSFZ method with an infrared heating furnace. In the TSFZ growth of La 2-x M x CuO 4 , the Sr content was controlled within a wide range as compared with the other dopants. The La 2-x M x CuO 4 grown crystals had high quality with a sharp superconducting transition.