Quantum Critical Point, Scaling, and Universality in High Tc [CaxLa(1-x)][Ba(2-c-x)La(c+x)]Cu3Oy
arXiv:cond-mat/0501643 · doi:10.1016/j.physc.2006.08.019
Abstract
Using charge transport observations on sintered ceramic samples of CLBLCO, we failed to observe the Quantum Critical Point (QCP) where it is expected. Experimental data relating Cooper pair density, electrical conductivity, and superconductivity critical temperature suggest that Homes' relation might need a more specific definition of 'sigma'. Transport observations on YBCO single crystals will resolve this question.
5 pages, 3 figures
References in corpus (6)
- Quantum Criticality: competing ground states in low dimensions
- Universal scaling relation in high-temperature superconductors
- Evidence for a quantum phase transition in the electron-doped cuprate Pr2-xCexCuO4+d from Hall and resistivity measurements
- The Structure and a Bond-Valence-Sum Study of the 1-2-3 Superconductors CLBLCO and YBCO
- Universal superconducting and magnetic properties of the (CaLa)(BaLa)CuO system: a MuSR investigation
- Common energy scale for magnetism and superconductivity in cuprates