Structural phase transition and diamagnetism at 36K IN La2CuO4

Lang, M.; Kneissel, H.; Renker, B.; Rietschel, H.; Spille, H.; Steglich, F.

doi:10.1016/S0921-4534(88)80182-5

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Structural phase transition and diamagnetism at 36K IN La₂CuO₄

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Lang, M., Kneissel, H., Renker, B., Rietschel, H., Spille, H., & Steglich, F. (1988). Structural phase transition and diamagnetism at 36K IN La₂CuO₄. Physica C, 153, 974-975. doi:10.1016/S0921-4534(88)80182-5.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-D4A2-C

Abstract

Both, La2CuO4 and La1·85,Sr0.15CUO4 exhibit a bulk phase transition around 36K in the thermal expansion. While in La1.85Sr0.15CuO4 this is associated with bulk superconductivity, demonstrated by a Meissner effect of ∼ 13%, the superconducting volume fraction of La2CuO4 amounts to only 10−4 of the total volume. In La2CuO4 time-dependent phenomena were observed.