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arXiv · 0808.0238

Experimental investigation of the origin of the cross-over temperature in the cuprates

Yuval Lubashevsky·Amit Keren
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Abstract

We investigate the cross-over temperature T* as a function of doping in (Ca_{x}La_{1-x})(Ba_{1.75-x}La_{0.25+x})Cu_3O_{y}, where the maximum Tc (Tc^max) varies continuously by 30% between families (x) with minimal structural changes. T* is determined by DC-susceptibility measurements. We find that T* scales with the maximum Neel temperature TN^max of each family. This result strongly supports a magnetic origin of T*, and indicates that three dimensional interactions play a role in its magnitude.

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Yuval Lubashevsky, Amit Keren. 2008-08-04. Experimental investigation of the origin of the cross-over temperature in the cuprates. https://doi.org/10.1103/physrevb.78.020505

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