This book contains most, but regrettably not all, the papers that were
presented at the Advanced Research Study Institute, ASI, held at the
Fantasia Hotel, Kusadasi, Turkey, July 26 - August 8, 1998. A powerful
incentive to the development of vortex physics in superconductors, that
has began with Abrikosov Vortices in Shubnikov's Mixed State, was
realized after the discovery of the high-Tc superconductivity. Indeed, a
number of the most intriguing phenomena and states of the flux line
lattice are observed in high-Tc superconducting materials due to their
high anisotropy, intrinsically layered crys- tal structure, extremely
small coherence length and the possibility of coexistence of
superconducting vortex states with high-energy thermal fluctuation.
These pe- culiarities are demonstrated as the 2D flux line lattice of
point-vortices (pan- cakes), Josephson vortices or strings in parallel
and/or tilted magnetic fields, flux line lattice melting into vortex
liquid and its freezing into vortex "solid" (e. g., crystal-or
glass-like) state. It is well known, that the main reason for
conditioning of the vortex ensemble state and behavior (except the
extrinsic factors, such as applied magnetic field or temperature) is a
set of intrinsic/extrinsic superconduct- ing material properties caused
by the crystal nature and symmetry, atoms ar- rangement, anisotropy, as
well as by the spectrum of crystal defects, their dimen- sions,
arrangement and density.