A comprehensive collection of papers on theoretical aspects of electronic processes in simple and synthetic metals, superconductors, bulk and low-dimensional semiconductors under extreme conditions, such as high magnetic and electric fields, low and ultra-low temperatures. The main emphasis is on low-dimensional conductors and superconductors, where correlated electrons, interacting with magnetic or nonmagnetic impurities, phonons, photons, or nuclear spins, result in a variety of new physical phenomena, such as quantum oscillations in the superconducting state, Condon instability, Skyrmions and composite fermions in quantum Hall effect systems, and hyperfine field-induced mesoscopic and nanoscopic phenomena. Several new experimental achievements are reported that promise to delineate future trends in low temperature and high magnetic field physics, including the experimental observation of the interplay between superconductivity and nuclear spin ordering at ultra-low temperatures, new observations of Condon domains in normal metals, and an experimental proposal for the realisation of isotopically engineered, semiconductor-based spin-qubit elements for future quantum computation and communication technology.

Inhalt
The interlayer magnetoresistance in quasi-2D layered organic metals.- The interplay of superconductivity and nuclear magnetism.- Magnetic domains with non-spin origin: Condon domains in beryllium and silver.- MgB2: superconductivity and pressure effects.- Pairing transition in a normal Fermi system with attractive interactions.- The vortex liquid state in a 2D superconductor at high magnetic fields.- 20 years since the discovery of the fractional quantum Hall effect.- Dimensional crossover in 2D crossbars.- Quantum effects in the conductivity of a quasi 2D electron gas.- Excitons in single and vertically coupled type II quantum dots in high magnetic fields.- Size dependent properties of nanoscale particles (silica).- Contact phenomena in 2D electron systems in the quantum Hall effect regime.- Chessboard magnetoconductance of a quantum dot in the Kondo regime.- Spin transport in diluted magnetic semiconductor superlattices.- Magnetic impurities in a strong magnetic field.- Hall effect and magnetoresistance in p-type ferromagnetic semiconductors.- Spin effects in quantum Hall droplets.- On deriving relaxation equations for nuclear spins.- NMR revisited.- Electron spectrum in nuclear spin polarization induced periodic structures.- Nuclear-spin-polarization-induced low-dimensional electron structures.- Isotopically engineered Si as a promising material for spintronics and semiconductor-based nuclear spin quantum computers.- Nuclear spintronics.- Dimensional crossover and dissipation of helicon waves, and QHE electrodynamics.- Recent trends in the theory of magneto-scattering of light.- List of contributors.- Author index.