Step-wise Behavior of Vortex-Lattice Melting Transition in Tilted Magnetic Fields in Single Crystals Bi2Sr2CaCu2O8+d

Abstract

The vortex lattice melting transition in single crystals Bi2Sr2CaCu2O8+d was studied by the in-plane resistivity measurements in magnetic fields tilted away from the c-axis to the ab-plane. In order to avoid the surface barrier effect which hinders the melting transition in the conventional transport measurements, we used the Corbino geometry of electric contacts. For the first time, the complete Hc-Hab phase diagram of the melting-transition in Bi2Sr2CaCu2O8+d is obtained. The c-axis melting field component Hc-melt exhibits the novel, step-wise dependence on the in-plane magnetic fields Hab which is discussed on the base of the crossing vortex lattice structure. The sharp change of resistance behavior observed near the ab-plane suggests transformation from first-order to second-order phase transition.

4 pages, 3 figures

References in corpus (4)

• Crossing lattices, vortex chains, and angular dependence of melting line in layered superconductors
• Where does the transport current flow in Bi2Sr2CaCu2O8 crystals?
• Quantum Smectic and Supersolid Order in Helium Films and Vortex Arrays
• Shear-induced vortex decoupling in Bi2Sr2CaCu2O8 crystals

Cited by in corpus (16)

• Periodic Oscillations of Josephson-Vortex Flow Resistance in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+y}$
• The London theory of the crossing-vortex lattice in highly anisotropic layered superconductors
• Decoration of Josephson Vortices by Pancake Vortices in Bi2Sr2CaCu2Ox
• Attraction between pancakes vortices in the crossing lattices of layered superconductors
• Josephson vortices and solitons inside pancake vortex lattice in layered superconductors
• Phase Transitions in Isolated Vortex Chains
• Decoupled two-dimensional superconductivity and continuous melting transitions in layered superconductors immersed in a parallel magnetic field
• Vortex matter in layered superconductors without Josephson coupling: numerical simulations within a mean-field approach
• Composite to tilted vortex lattice transition in $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$ in oblique fields
• Josephson Vortex States in Intermediate Fields
• Anisotropy of Vortex-Liquid and Vortex-Solid Phases in Single Crystals of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$: Violation of the Scaling Law
• Attractive interaction between superconducting vortices in tilted magnetic fields
• Superconducting Plasma Excitation at Microwave Frequencies in Parallel Magnetic Fields in $\mathbf{B}{\mathbf{i}}_2\mathbf{S}{\mathbf{r}}_2\mathbf{CaC}{\mathbf{u}}_2{\mathbf{O}}_{8+\delta }$
• Lamellar mesophase nucleated by Josephson vortices at the melting of the vortex lattice in $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+delta}$
• Two dimensional scaling of resistance in flux flow region in $T{l}_{2}B{a}_{2}CaC{u}_2{O}_8$ thin films
• Dependence of vortex phase transitions in mesoscopic BSCCO superconductor at tilted magnetic fields