Nonmonotonic Pressure Dependence of the Lattice Parameter $a$ in the Quasi-one-dimensional Superconductor Pr${}_2$Ba${}_4$Cu${}_7$O${}_{15-\delta }$

Abstract

In the quasi-one-dimensional superconductor, Pr${}_2$Ba${}_4$Cu${}_7$O${}_{15-\delta }$, we found that the lattice parameter, $a$ increased against pressure, starting at 2.0 GPa at approximately 300 K. This result suggests that the two-dimensional inter-conducting-chain interaction along the $a$ axis is most enhanced at approximately 2.0 GPa. To discuss the dimensionality, we also measured the resistance under magnetic fields up to 14 T, because magneto-resistance is induced when a system changes from one-dimensional to two-dimensional.

References in corpus (3)

• Phase diagram of the one-dimensional Hubbard model with next-nearest-neighbor hopping
• Collapse of CuO Double Chains and Suppression of Superconductivity in High-Pressure Phase of YBa${}_2$Cu${}_4$O${}_8$
• Effect of pressure on magneto-transport properties in the superconducting and normal phases of the metallic double chain compound Pr${}_2$Ba${}_4$Cu${}_7$O${}_{15-\delta }$

Cited by in corpus (2)

• Crystal structures and superconducting properties of metallic double-chain based cuprate Pr2Ba4Cu7O15-delta
• Ground-State Properties of the $t$-$J$ Model for the CuO Double-Chain Structure