Phase diagram and single crystal growth of pure and Sr doped La2CuO4
1988; Elsevier BV; Volume: 91; Issue: 3 Linguagem: Inglês
10.1016/0022-0248(88)90270-9
ISSN1873-5002
AutoresP. J. Picone, H. P. Jenssen, D. R. Gabbe,
Tópico(s)Magnetic and transport properties of perovskites and related materials
ResumoSingle crystals of pure and Sr doped La2CuO4 have been grown from excess CuO with a top seeded solution growth technique. Crystals have been grown both in air and in oxygen. Growth in air leads to an oxygen deficiency as evidenced by a reduction in the lattice parameters. Differential Thermal Analysis measurements in oxygen on this system reveal a eutectic temperature of 1075°C for the composition 87.5 mol% CuO. Measurements in air show a reduction in the eutectic temperature to 1040°C and the formation of a 3 component system with the partial reduction of CuO to Cu2O.
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