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We describe the crystal growth of high quality single crystals of the non-centrosymmetric superconductor, Ru 7 B 3 by the floating zone technique, using an optical furnace equipped with xenon arc lamps. The crystals obtained are large and suitable for detailed measurements, and have been examined using x-ray Laue patterns. The superconducting properties of the crystals obtained have been investigated by magnetisation and resistivity measurements. Crystals have also been grown starting with enriched 11 B isotope, making them suitable for neutron scattering experiments.

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