Composite to tilted vortex lattice transition in $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$ in oblique fields

Abstract

Precision measurements of the vortex phase diagram in single crystals of the layered superconductor Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ in oblique magnetic fields confirm the existence of a second phase transition, in addition to the usual first order vortex lattice melting line $H_m(T)$. The transition has a strong first order character, is accompanied by strong hysteresis, and intersects the melting line in a tricritical point ($H_m^{\perp }$, $H_{cr}^{\parallel }$). Its field dependence and the changing character of the melting line at the tricritical point strongly suggest that the ground state for magnetic fields closely aligned with the superconducting layers is a lattice of uniformly tilted vortex lines.

References in corpus (11)

• Crossing lattices, vortex chains, and angular dependence of melting line in layered superconductors
• Pinning-induced transition to disordered vortex phase in layered superconductors
• Step-wise Behavior of Vortex-Lattice Melting Transition in Tilted Magnetic Fields in Single Crystals Bi2Sr2CaCu2O8+d
• The London theory of the crossing-vortex lattice in highly anisotropic layered superconductors
• Decoration of Josephson Vortices by Pancake Vortices in Bi2Sr2CaCu2Ox
• Josephson vortices and solitons inside pancake vortex lattice in layered superconductors
• Vortex Chains in Anisotropic Superconductors
• Universal properties for linelike melting of the vortex lattice
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• 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
• Melting of regular and decoupled vortex lattices in BSCCO crystals

Cited by in corpus (9)

• Dissipation-induced anomalous multicritical phenomena
• Latent-heat and non-linear vortex liquid at the vicinity of the first-order phase transition in layered high-Tc superconductors
• Vortex matter freezing in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ samples with a very dense distribution of columnar defects
• Scaling behavior of the crossover to short-stack regimes of Josephson vortex lattices in Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ stacks
• Suppression of geometrical barrier in $B{i}_{2}S{r}_{2}CaC{u}_2{O}_{8+\delta }$ crystals by Josephson vortex stacks
• Vortex phase diagram and temperature-dependent second-peak effect in overdoped Bi${}_2$Sr${}_2$CuO${}_{6+\delta }$ crystals
• In-plane current-voltage characteristics and oscillatory Josephson-vortex flow resistance in La-free Bi${}_{2+x}$Sr${}_{2-x}$CuO${}_{6+\delta }$ single crystals in high magnetic fields
• Field cooling memory effect in Bi2212 and Bi2223 single crystals
• In-plane field-induced vortex liquid correlations in underdoped Bi_2Sr_2CaCu_2O_8+δ