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Consequences of the low dimensionality on magnetic properties of the layered organic superconductors κ-(BEDT-TTF)2X for X = Cu(NCS)2 and Cu[N(CN)2]Br

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Lang, M., Steglich, F., Toyota, N., & Sasaki, T. (1994). Consequences of the low dimensionality on magnetic properties of the layered organic superconductors κ-(BEDT-TTF)2X for X = Cu(NCS)2 and Cu[N(CN)2]Br. Physica C-Superconductivity and its Applications, 235, 2469-2470. doi:10.1016/0921-4534(94)92455-4.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-DDEA-D
Abstract
The dc-magnetization on high-quality single crystals of the title organic superconductors reveal indications for strong thermal fluctuations in fields perpendicular to the planes, i.e. a field-induced rounding of the transition and a field-independent magnetization at M*(T*,H) for H less than or equal to 10kOe. The mixed-state properties are governed by an extended range in the H-T plane where the magnetization is entirely reversible. The lower boundary of this range - the so-called irreversibility line - follows an exponential T dependence.