High-pressure phase relations of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ single crystals

Abstract

We have investigated the pressure dependence of the superconducting transition temperature $T_c$ up to 18 GPa of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ single crystals ranging from the highly underdoped through the nearly optimally doped to the highly overdoped level. For all three samples studied, $T_c$ is found to increase initially and then saturate at a critical pressure $P_c$ but decrease modestly with further compression. Oxygen doping tends to reduce the increase in $T_c$ and $P_c$. A new high-pressure phase diagram between the saturated $T_c$ and $P_c$ is then obtained. Theoretical interpretation is given by using the competition between the hole carrier density and pairing interaction strength based on the high-pressure transport data of the resistivity and Hall coefficient in this system.

arXiv comment8 pages, 7 figures, to appear in Physical Review B

References in corpus (8)

• Heat Transport in a Strongly Overdoped Cuprate: Fermi Liquid and Pure d-wave BCS Superconductor
• Antiferromagnetic and van Hove Scenarios for the Cuprates: Taking the Best of Both Worlds
• BCS-like Bogoliubov Quasiparticles in High-Tc Superconductors Observed by Angle-Resolved Photoemission Spectroscopy
• Interlayer Transport of Quasiparticles and Cooper pairs in Bi2Sr2CaCu2O8+y Superconductors
• Effects of pressure on the superconducting properties of magnesium diboride
• Variation of Superconducting Transition Temperature in Hole-Doped Copper-Oxides
• Relaxation Effects in the Transition Temperature of Superconducting HgBa2CuO4+delta
• Pressure Dependence of the Irreversibility Line in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$:Role of Anisotropy in Flux-Line Formation

Cited by in corpus (11)

• Imaging the impact on cuprate superconductivity of varying the inter-atomic distances within individual crystal unit-cells
• Higher superconducting transition temperature by breaking the universal pressure relation
• Magnetism and d-wave superconductivity on the half-filled square lattice with frustration
• Structure of BSCCO supermodulation from ab initio calculations
• Through a Lattice Darkly -- Shedding Light on Electron-Phonon Coupling in the High T${}_c$ Cuprates
• Uncovering a pressure-tuned electronic transition in BiSrYCu2O8 using Raman scattering and x-ray diffraction
• Accessing the Full Superconducting Dome in Pristine YBa2Cu3O6+x Under Pressure
• The Strain Derivatives of $T_c$ in HgBa${}_2$CuO${}_{4+\delta }$: CuO${}_2$ Plane Alone is Not Enough
• Phase separation and electron pairing in repulsive Hubbard clusters
• Defect trapping and phase separation in chemically doped bulk AgF2
• Signatures of pressure induced superconductivity in insulating Bi2212