High Temperature Superconducting State in Metallic Nanoclusters and Nano-Based Systems
Abstract
Main goal of project is the search of new materials with high temperature of the superconducting transition (order of room temperature). Main investigation objects are special nanoclusters with shell structure of the electron spectrum. The goal is investigation of the possibility of building of nets (two and three dimensional) from nanoclusters with high value of the superconducting transition temperature and possessing of possibility to transfer high value of transport current without dissipation of energy. Thermal and quantum fluctuations are source of energy dissipation. The net from nanoclusters is inhomogeneous media. Intrinsic inhomogeneity leads to pinning of vortices and make it possible to flow of non dissipative current. Our goal is investigation of creep of the vortex structure in high and low temperature region. Main investigation methods are methods of quantum field theory. Expected results are: we are hope obtain nanoclusters with high value of the superconducting transition temperature and determine physical parameters of such clusters (chemical structure, form of cluster, electrons number, etc.). We are anticipating that for special conditions the resonant tunneling between nanoclusters can take place and as result the critical value of the superconducting current density will increase strictly. This will lead also to the strong suppression of the role of thermal and quantum fluctuation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2011
- Accession Number
- ADA552346
Entities
People
- Yury N. Ovchinnikov
Organizations
- Landau Institute for Theoretical Physics