Granular metals are arrays of metallic particles of a size ranging usually from a few to
hundreds of nanometers embedded into an insulating matrix. Metallic granules are often …

Nanoparticles (NPs) are commonly referred to as “artificial atoms”, 1 as they can exhibit
atomic-like behaviors. The analogy is highlighted by a result that, just like atoms, electronic …

This book presents a complete encyclopedia of superconducting fluctuations, summarising
the last thirty-five years of work in the field. The first part of the book is devoted to an …

The current understanding of the superconductor–insulator transition is discussed level by
level in a cyclic spiral-like manner. At the first level, physical phenomena and processes are …

We develop a semi-quantitative theory of electron pairing and resulting superconductivity in
bulk “poor conductors” in which Fermi energy EF is located in the region of localized states …

Superconductor-insulator transitions, especially in thin films, can provide the simplest
examples of the continuous quantum phase transition paradigm. Quantum phase transitions …

We consider effects of Coulomb interaction in a granular normal metal at not very low
temperatures suppressing weak localization effects. In this limit calculations with the initial …

The conductivity of a granular metal or an array of quantum dots usually has the temperature
dependence associated with variable range hopping within the soft Coulomb gap of density …

We investigate transport in a granular metallic system at large tunneling conductance
between the grains, g T≫ 1. We show that at low temperatures, T≤ g T δ, where δ is the …

Ultrathin transition metal carbides are a class of developing two-dimensional (2D) materials
with superconductivity and show great potentials for electrical energy storage and other …