Encapsulated Single Crystal Growth and Annealing of the High-Temperature Superconductor Tl-2201

Abstract

Highly-perfect platelet single crystals of Tl_2Ba_2CuO_{6+d} (Tl-2201) were grown by a self-flux technique. A novel encapsulation scheme allowed the precursors to react prior to the sealing required to contain volatile thallium oxides, and permitted the removal of melt at the conclusion of growth, reproducibly producing high yields of clean crystals. The crystals were annealed under well-controlled oxygen partial pressures, then characterised. They have sharp superconducting transitions, narrow X-ray rocking curves and a low 4% substitution of thallium by copper, all evidence of their high perfection and homogeneity. The crystals are orthorhombic at most dopings, and a previously unreported commensurate superlattice distortion is observed.

8 pages, 5 figures, submitted to Journal of Crystal Growth

References in corpus (2)

• Fermi Surface and Quasiparticle Excitations of overdoped Tl2Ba2CuO6+d by ARPES
• Tl2Ba2CuO6+d Brings Spectroscopic Probes Deep Into the Overdoped Regime of the High-Tc Cuprates

Cited by in corpus (10)

• Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering
• Electron interactions and charge ordering in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Crossover from Collective to Incoherent Spin Excitations in Superconducting Cuprates Probed by Detuned Resonant Inelastic X-ray Scattering
• Microwave conductivity and superfluid density in strongly overdoped Tl2201
• Unconventional short-range structural fluctuations in cuprate high-$T_c$ superconductors
• Effect of realistic out-of-plane dopant potentials on the superfluid density of overdoped cuprates
• Signatures of New $d$-Wave Vortex Physics in Overdoped Tl${}_2$Ba${}_2$CuO${}_{6+x}$ Revealed by TF-${\mu }^{+}$SR
• Logarithmic Upturn in Low-Temperature Electronic Transport as a Signature of d-Wave Order in Cuprate Superconductors
• Optical conductivity of overdoped cuprates from ab-initio out-of-plane impurity potentials
• Coulomb blockade thermometry based nanocalorimetry