Absence of the zero bias peak in vortex tunneling spectra of high temperature superconductors?

Abstract

The c-axis tunneling matrix of high-Tc superconductors is shown to depend strongly on the in-plane momentum of electrons and vanish along the four nodal lines of the d(x^2-y^2)-wave energy gap. This anisotropic tunneling matrix suppresses completely the contribution of the most extended quasiparticles in the vortex core to the c-axis tunneling current and leads to a spectrum similar to that of a nodeless superconductor. Our results give a natural explanation of the absence of the zero bias peak as well as other features observed in the vortex tunneling spectra of high-Tc cuprates.

arXiv comment4 pages 3 figures, minor corrections, to appear in Phys Rev B

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• Mixed-State Quasiparticle Spectrum for d-wave Superconductors
• Self-consistent electronic structure of a $d_{x^2-y^2}$ and a $d_{x^2-y^2}+i{d}_{xy}$ vortex
• c axis superfluid response of Copper-Oxide superconductors
• c-axis electrodynamics of ybco
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• Quasiparticles of d-wave superconductors in finite magnetic fields
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Cited by in corpus (10)

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• Quasiparticle excitation in and around the vortex core of underdoped YBa_2Cu_4O_8 studied by site-selective NMR
• Quasiparticle Interference in the Unconventional Metamagnetic Compound Sr${}_3$Ru${}_2$O${}_7$
• Reaffirming the $d_{x^2-y^2}$ superconducting gap using the auto-correlation angle-resolved photoemission spectroscopy of Bi${}_{1.5}$Pb${}_{0.55}$Sr${}_{1.6}$La${}_{0.4}$CuO${}_{6+\delta }$
• Mixed state of a lattice d-wave superconductor
• Microscopic Hamiltonian for Zn or Ni substituted high temperature cuprate superconductors
• Vortex-core spectroscopy of $d$-wave cuprate high-temperature superconductors
• Effect of CuO chains on the local density of states in the vortex phase of YBa_2Cu_3O_7
• Bogoliubov quasiparticles coupled to the antiferromagnetic spin mode in a vortex core