Phenomenology of a-axis and b-axis charge dynamics from microwave spectroscopy of highly ordered YBa2Cu3O6.50 and YBa2Cu3O6.993

Abstract

Extensive measurements of the microwave conductivity of highly pure and oxygen-ordered \YBCO single crystals have been performed as a means of exploring the intrinsic charge dynamics of a d-wave superconductor. Broadband and fixed-frequency microwave apparatus together provide a very clear picture of the electrodynamics of the superconducting condensate and its thermally excited nodal quasiparticles. The measurements reveal the existence of very long-lived excitations deep in the superconducting state, as evidenced by sharp cusp-like conductivity spectra with widths that fall well within our experimental bandwidth. We present a phenomenological model of the microwave conductivity that captures the physics of energy-dependent quasiparticle dynamics in a d-wave superconductor which, in turn, allows us to examine the scattering rate and oscillator strength of the thermally excited quasiparticles as functions of temperature. Our results are in close agreement with the Ferrell-Glover-Tinkham sum rule, giving confidence in both our experiments and the phenomenological model. Separate experiments for currents along the $\hat{a}$ and $\hat{b}$ directions of detwinned crystals allow us to isolate the role of the CuO chain layers in \YBCO, and a model is presented that incorporates both one-dimensional conduction from the chain electrons and two-dimensional transport associated with the \cuplane plane layers.

arXiv comment17 pages, 13 figures

References in corpus (22)

• Discovery of microscopic electronic inhomogeneity in the high-Tc superconductor Bi2Sr2CaCu2O8+x
• Microwave Spectroscopy of Thermally Excited Quasiparticles in YBa_2Cu_3O_{6.99}
• d-Wave Model for Microwave Response of High-Tc Superconductors
• Nonlocal Effects on the Magnetic Penetration Depth in d-wave Superconductors
• Nodal Quasiparticle Lifetime in the Superconducting State of BSCCO(2212)
• Absolute values of the London penetration depth in YBa2Cu3O6+y measured by zero field ESR spectroscopy on Gd doped single crystals
• Observation of Weak-Limit Quasiparticle Scattering via Broadband Microwave Spectroscopy of a d-Wave Superconductor
• CeCoIn5 - a quantum critical superfluid
• Transport in Ultraclean YBa${}_2$Cu${}_3$O${}_7$: neither Unitary nor Born Impurity Scattering
• Preparation and Characterization of Homogeneous YBCO Single Crystals with Doping Level near the SC-AFM Boundary
• Disorder and chain superconductivity in YBa_2Cu_3O_{7-δ}
• Bolometric technique for high-resolution broadband microwave spectroscopy of ultra-low-loss samples
• Quasiparticle-quasiparticle Scattering in High Tc Superconductors
• Microwave conductivity of d-wave superconductors with extended impurities
• Quasi-particle Lifetimes in a d_{x^2-y^2} Superconductor
• Microwave Conductivity due to Impurity Scattering in a d-wave Superconductor
• Residual absorption at zero temperature in d-wave superconductors
• Optical Conductivity of Ortho-II YBa${}_2$Cu${}_3$O${}_6.5$
• Electrical transport measurements in the superconducting state of Bi2212 and Tl2201
• Microwave conductivity of YBa${}_2$Cu${}_3$O${}_{6.99}$ including inelastic scattering
• Optical conductivity of a superfluid density wave
• Microwave Conductivity of a High Purity d-wave Superconductor

Cited by in corpus (22)

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• Lifshitz critical point in the cuprate superconductor YBa2Cu3Oy from high-field Hall effect measurements
• Stability of nodal quasi-particles in superconductors with coexisting orders
• Nodal quasiparticle dynamics in the heavy fermion superconductor CeCoIn5 revealed by precision microwave spectroscopy
• Superfluid density and microwave conductivity of FeSe superconductor: ultra-long-lived quasiparticles and extended s-wave energy gap
• Precision Microwave Electrodynamic Measurements of K- and Co-doped BaFe${}_2$As${}_2$
• Microwave conductivity and superfluid density in strongly overdoped Tl2201
• Emergent Charge Order from Correlated Electron-Phonon Physics in Cuprates
• Local quasiparticle lifetimes in a d-wave superconductor
• Doping and energy dependent microwave conductivity of kinetic energy driven superconductors with extended impurities
• Specific Heat and Sound Velocity Distinguish the Relevant Competing Phase in the Pseudogap Region of High Temperature Superconductors
• Microwave spectroscopy of vortex dynamics in ortho-II YBa2Cu3O6.52
• Oxygen Chain Disorder as the Weak Scattering Source in YBa${}_2$Cu${}_3$O${}_{6.50}$
• Fermi-surface induced modulation in an optimally doped YBCO superconductor
• Anisotropic microwave conductivity of cuprate superconductors in the presence of CuO chain induced impurities
• Optical properties of the pseudogap state in underdoped cuprates
• Extinction of quasiparticle scattering interference in cuprate superconductors
• Logarithmic Upturn in Low-Temperature Electronic Transport as a Signature of d-Wave Order in Cuprate Superconductors
• On the determination of the quasiparticle scattering rate in unconventional superconductors by microwave surface impedance
• Pseudodiffusive transmission of nodal Dirac fermions through a clean d-wave superconductor
• Intrinsic Mechanism for Magneto-Thermal Conductivity Oscillations in Spin-Orbit-Coupled Nodal Superconductors
• Microwave conductivity due to impurity scattering in cuprate superconductors