Crystallographic, Magnetic, and Superconductive Transitions in (La<sub>1-x</sub>Ba<sub>x</sub>)<sub>2</sub>CuO<sub>4-y</sub>

T. Fujita, Yuji Aoki, Y. Maeno, J. Sakurai, Hitoshi Fukuba, Hironobu Fujii

Japanese Journal of Applied Physics · 1987 · 186 citations · 4 references

Concepts

Abstract

Three types of phase transitions in (La1-xBax)2CuO4-y–orthorhombic to tetragonal, spin density wave (SDW) and superconductive–were traced as a function of the Ba concentration, x. The obtained phase diagram indicates that the SDW state does not coexist with superconductivity, whereas samples both in orthorhombic and tetragonal phases can be superconducting.

References

4