New Perspectives for Cuprate Research: CLBLCO Single Crystals

Abstract

We report the successful growth of a large (Ca${}_x$La${}_{1-x}$)(Ba${}_{1.75-x}$La${}_{0.25+x}$)Cu${}_3$O${}_y$ (CLBLCO) single crystal. In this material, $x$ controls the maximum of Tc ($T_c^{\max }$), with minimal structural changes. Therefore, it allows a search for correlations between material properties and $T_c^{\max }$. We demonstrate that the crystals are good enough for neutron scattering and cleave well enough for Raman scattering. These results open new possibilities for cuprate research.