Enhancement of superconducting transition temperature by the additional second neighbor hopping t' in the t-J model

Abstract

Within the kinetic energy driven superconducting mechanism, the effect of the additional second neighbor hopping t' on the superconducting state of the t-J model is discussed. It is shown that t' plays an important role in enhancing the superconducting transition temperature of the t-J model. It is also shown that the superconducting-state of cuprate superconductors is the conventional Bardeen-Cooper-Schrieffer like, so that the basic Bardeen-Cooper-Schrieffer formalism is still valid in quantitatively reproducing the doping dependence of the superconducting gap parameter and superconducting transition temperature, and electron spectral function at $(\pi ,0)$ point, although the pairing mechanism is driven by the kinetic energy by exchanging dressed spin excitations.

arXiv comment8 pages, 4 figures, added discussions and references, accepted for publication in Physics Letters A

References in corpus (23)

• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Phase-sensitive Evidence for d-wave Pairing Symmetry in Electron-doped Cuprate Superconductors
• Evolution of the resonance and incommensurate spin fluctuations in superconducting YBa${}_2$Cu${}_3$O${}_{6+x}$
• ARPES Study of the Superconducting Gap Anisotropy in Bi_2Sr_2CaCu_2O_8+x
• Static magnetic correlations near the insulating-superconducting phase boundary in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Observation of New Incommensurate Magnetic Correlations at the Lower Critical Concentration for Superconductivity (x=0.05) in La(2-x)Sr(x)CuO4
• Coherent quasiparticle weight and its connection to high-T_c superconductivity from angle-resolved photoemission
• BCS-like Bogoliubov Quasiparticles in High-Tc Superconductors Observed by Angle-Resolved Photoemission Spectroscopy
• Evidence for Quasiparticle Decay in Photoemission from Underdoped Cuprates
• Direct relation between the low-energy spin excitations and superconductivity of overdoped high-$T_c$ superconductors
• The superfluid density in cuprate high-Tc superconductors - a new paradigm
• A gauge invariant dressed holon and spinon description of the normal-state of underdoped cuprates
• Kinetic energy driven superconductivity in doped cuprates
• Enhancement of Pairing Correlation by t' in the Two-Dimensional Extende d t-J Model
• Fermion-Spin Transformation to Implement the Charge-Spin Separation
• Effects of next-nearest-neighbor hopping $t^{\prime }$ on the electronic structure of cuprates
• Hole Doping Dependence of the Coherence Length in $L{a}_{2-x}S{r}_{x}Cu{O}_4$ Thin Films
• Spin-Charge Separation is the Key to the High T_c Cuprates
• Theory of Photoemission from the Copper Oxide Material
• Gauge invariant dressed holon and spinon in doped cuprates
• Superconducting order parameter in heavily overdoped $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$: a global quantitative analysis
• Interplay between single particle coherence and kinetic energy driven superconductivity in doped cuprates
• The charge asymmetry in superconductivity of hole- and electron-doped cuprates

Cited by in corpus (15)

• The magnetic nature of superconductivity in doped cuprates
• Kinetic-energy driven superconductivity in cuprate superconductors
• Electronic structure of kinetic energy driven superconductors
• Electronic structure of kinetic energy driven cuprate superconductors
• Spin fluctuations and high-temperature superconductivity in cuprates
• Electronic structure of kinetic energy driven superconductors in the presence of bilayer splitting
• Asymmetry of the electron spectrum in hole-doped and electron-doped cuprates
• Doping and energy dependent microwave conductivity of kinetic energy driven superconductors with extended impurities
• Electromagnetic response in kinetic energy driven cuprate superconductors: Linear response approach
• Momentum dependence of quasiparticle spectrum and Bogoliubov angle in cuprate superconductors
• Electronic structure of the electron-doped cuprate superconductors
• Superconductivity in doped two-leg ladder cuprates
• Pressure dependence of superconductivity in doped two-leg ladder cuprates
• The fundamental role of superconducting quasiparticle coherence in cuprate superconductors
• Impurity-Scattering Assisted Umklapp Scattering as the Origin of Low-Temperature Resistivity in the Normal-State of Cuprate Superconductors