Peak effect, vortex-lattice melting-line and order - disorder transition in conventional and high-T superconductors
arXiv:cond-mat/0106243 · doi:10.1103/PhysRevB.64.184514
Abstract
We investigate the order - disorder transition line from a Bragg glass to an amorphous vortex glass in the H-T phase diagram of three-dimensional type-II superconductors with account of both pinning-caused and thermal fluctuations of the vortex lattice. Our approach is based on the Lindemann criterion and on results of the collective pinning theory and generalizes previous work of other authors. It is shown that the shapes of the order - disorder transition line and the vortex lattice melting curve are determined only by the Ginzburg number, which characterizes thermal fluctuations, and by a parameter which describes the strength of the quenched disorder in the flux-line lattice. In the framework of this unified approach we obtain the H-T phase diagrams for both conventional and high-Tc superconductors. Several well-known experimental results concerning the fishtail effect and the phase diagram of high-Tc superconductors are naturally explained by assuming that a peak effect in the critical current density versus H signalizes the order - disorder transition line in superconductors with point defects.
15 pages including 11 figures
References in corpus (8)
- Inverse melting of the vortex lattice
- Instabilities and disorder-driven first-order transition of the vortex lattice
- Dynamic instabilities and memory effects in vortex matter
- Abrupt Change of Josephson Plasma Frequency at the Phase Boundary of the Bragg Glass in Bi_2Sr_2CaCu_2O_{8+δ}
- Supercooling of the disordered vortex lattice in Bi_2Sr_2CaCu_2O_8+d
- Dislocations and the critical endpoint of the melting line of vortex line lattices
- Effects of point defects on the phase diagram of vortex states in high-Tc superconductors in B//c axis
- Disordered Type-II Superconductors: A Universal Phase Diagram for Low-T Systems
Cited by in corpus (45)
- The Ginzburg-Landau Theory of Type II superconductors in magnetic field
- Flux pinning in (1111) iron-pnictide superconducting crystals
- Doping-dependent critical current properties in K, Co, and P-doped BaFe2As2 single crystals
- Effect of pinning on the vortex-lattice melting line in type-II superconductors
- Ordered, disordered and coexistent stable vortex lattices in NbSe_2 single crystals
- How the vortex lattice of a superconductor becomes disordered: a study by scanning tunneling spectroscopy
- Disorder-induced Phase Transition of Vortex Matter in MgB2
- Theory of the vortex matter transformations in high Tc superconductor YBCO
- From the second magnetization peak to peak effect. A study of superconducting properties in Nb films and MgB2 bulk samples
- Unified order-disorder vortex phase transition in high-Tc superconductors
- Driven Disordered Polymorphic Solids: Phases and Phase Transitions, Dynamical Coexistence and Peak Effect Anomalies
- Real-space vortex glass imaging and the vortex phase diagram of SnMo6S8
- Disorder effects on the superconducting properties of BaFeCoAs single crystals
- Exploring metastability via the third harmonic measurements in single crystals of - showing anomalous Peak effect
- Anisotropy of the superconducting state properties and phase diagram of MgB2 by torque magnetometry on single crystals
- Hysteretic behavior of the vortex lattice at the onset of the second peak for HgBaCuO superconductor
- Supercooled vortex liquid and quantitative theory of melting of the flux line lattice in type II superconductors
- Neutron Irradiation of Sm-1111
- Magnetic field - dependent Labusch parameter in LiFeAs superconductor from Campbell penetration depth
- Charge density wave and superconductivity competition in LuIrSi : a proton irradiation study
- Electrical transport, magnetic, and structural properties of the vortex lattice of V_3Si in the vicinity of the peak effect
- The magnetization of PrFeAsOF$_{0.12} sueprconductor
- Peak effect in YBCO crystals: Statics and dynamics of the vortex lattice
- Vortex dynamics and second magnetization peak in PrFeAsOF superconductor
- Critical current in thin flat superconductors with Bean-Livingston and geometrical barriers
- The Absence of Vortex Lattice Melting in a Conventional Superconductor
- Evolution in the split-peak structure across the Peak Effect region in single crystals of -NbSe
- Structure of the flux lines lattice in NbSe2: Equilibrium state and influence of the magnetic history
- Scaling of the physical properties in Ba(Fe,Ni)2As2 single crystals: Evidence for quantum fluctuations
- Muon Spin Rotation and the Vortex Lattice in Superconductors
- Defect induced melting of vortices in high- superconductors: A model based on continuum elasticity theory
- The strengthening of reentrant pinning by collective interactions in the peak effect
- Surface pinning in amorphous ZrTiCuNiBe alloy
- Suppression of the Melting Line in a Weakly Disordered Flux-line System
- Unified Phase Diagram for the Three-Dimensional XY Model of a Point Disordered Type-II Superconductor
- Flux quanta driven by high-density currents in low-impurity V3Si and LuNi2B2C: free flux flow and flux-core size effect
- Phase Diagram of Vortices in High-Tc Superconductors from Lattice Defect Model with Pinning
- Lamellar mesophase nucleated by Josephson vortices at the melting of the vortex lattice in
- Pinning in nonmagnetic borocarbides
- Effect of doping on irreversible Campbell length in MgB single crystals
- Conventional s-wave superconductivity and hidden peak effect in single crystals of MoGa superconductor
- Unconventional magnetic phase diagram of cuprate superconductor La2-xSrxCuO4 at quantum critical point x = 1/9
- Doping Dependence of Vortex Regimes in YPrBaCuO Single Crystals
- Dimensionality of the superconductivity in the transition metal pnictide WP
- Estimates for the thermodynamic signatures of vortex-lattice melting in conventional superconductors