Superconductivity in layered BiS2-based compounds
نویسندگان
چکیده
منابع مشابه
Multiband superconductivity in BiS2-based layered compounds.
A mean-field treatment is presented of a square lattice two-orbital-model for [Formula: see text] taking into account intra- and inter-orbital superconductivity. A rich phase diagram involving both types of superconductivity is presented as a function of the ratio between the couplings of electrons in the same and different orbitals ([Formula: see text]) and electron doping x. With the help of ...
متن کاملSuperconductivity in Layered Organic Metals
In this short review, I will give an overview on the current understanding of the superconductivity in quasi-two-dimensional organic metals. Thereby, I will focus on charge-transfer salts based on bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF or ET for short). In these materials, strong electronic correlations are clearly evident, resulting in unique phase diagrams. The layered crystallograph...
متن کاملDiscovery of BiS2-Based Superconductor and Material Design Concept
In 2012, we discovered new layered superconductors whose superconducting states emerge in the BiS2 layers. Since their crystal structure, composed of alternate stacks of BiS2 conduction layers and electrically insulating (blocking) layers, is similar to those of cuprate and Fe-based superconductors, many researchers have explored new BiS2-based superconductors and have studied the physical and ...
متن کاملSuperconductivity in Heavy Fermion Compounds
The heavy electron state in intermetallic lanthanide and actinide compounds has its origin in the interplay of strong Coulomb repulsion in the 4fand 5fshells and their hybridisation with conduction band states. Heavy quasiparticles have mostly been observed in Ceand U-based intermetallics which are therefore at the focus of this review. Ideally the ground state in these strongly correlated elec...
متن کاملLattice Vibrations and Superconductivity in Layered Structures
In order to estimate the influence of both surface and interface effects on phonon frequencies and superconducting transition temperatures in layered structures, we have calculated the vibrational modes of structures composed of alternating films of heavy and light particles. An interface effectively lowers the vibrational frequencies of the heavy particles and raises those of the light particl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physica C: Superconductivity and its Applications
سال: 2015
ISSN: 0921-4534
DOI: 10.1016/j.physc.2015.02.025