Doping dependence of thermodynamic properties in cuprate superconductors

Abstract

The doping and temperature dependence of the thermodynamic properties in cuprate superconductors is studied based on the kinetic energy driven superconducting mechanism. By considering the interplay between the superconducting gap and normal-state pseudogap, the some main features of the doping and temperature dependence of the specific-heat, the condensation energy, and the upper critical field are well reproduced. In particular, it is shown that in analogy to the domelike shape of the doping dependence of the superconducting transition temperature, the maximal upper critical field occurs around the optimal doping, and then decreases in both underdoped and overdoped regimes. Our results also show that the humplike anomaly of the specific-heat near superconducting transition temperature in the underdoped regime can be attributed to the emergence of the normal-state pseudogap in cuprate superconductors.

8 pages, 7 figures, typos corrected and added reference, accepted for publication in Physica C

References in corpus (7)

• Two Gaps Make a High Temperature Superconductor?
• The magnetic nature of superconductivity in doped cuprates
• Emergence of Cooper pairs, d-wave duality and the phase diagram of cuprate superconductors
• Doping dependence of the upper critical field in La_{2-x}Sr_xCuO_4 from specific heat
• Electronic structure of kinetic energy driven superconductors
• Two gaps with one energy scale in cuprate superconductors
• Electronic structure of kinetic energy driven cuprate superconductors

Cited by in corpus (6)

• Kinetic-energy driven superconductivity in cuprate superconductors
• Enhancement of superconductivity by electronic nematicity in cuprate superconductors
• Pseudogap and charge dynamics in doped cuprates
• Pseudogap and its connection to particle-hole asymmetry electronic state and Fermi arcs in cuprate superconductors
• Pseudogap-induced asymmetric tunneling in cuprate superconductors
• Thermodynamic properties in triangular-lattice superconductors