Superconductivity in Exotic Materials

Abstract

Superconductivity in exotic materials like Chevrel phase compounds, ceramic cuprates, heavy fermion systems and fullendes, not occurring naturally, has been discussed.

Indexing terms:

• Superconductivity
• Exotic superconductors
• Eliashberg theory
• Electron-elementary excitation

Additional information

Notes on contributors

S P Tewari

S P Tewari, is a Professor of Physics in the Department of Physics and Astrophysics, University of Delhi, Delhi for the last over twelve years. He has been involved in all kinds of academic activities like teaching, research, supervising research work leading to the award of PhD degrees, organizing Symposia and Conferences, presenting research work at various International and National Symposia and Conferences in the form of invited talks, presentations and chairing the sessions etc since he joined as a Faculty member of Delhi University almost thirty years ago. He has published well over hundred research papers in the top class International reputed journals of physics in different branches of Condensed Matter Physics like superconductivity: both high temperature (rare earth cuprates, Cheveral phase, heavy fermions and fullerides) and conventional, strongly coupled superconductors; density—density distinct and auto—correlation functions, in ordered (highly anisotropic crystals, proteins, bio-polymers, fullerites etc) and disordered (polymers and liquids) materials; frequency and wave—vector dependent electron dielectric functions in solid state plasma at different densities ranging from highly degenerate (metallic) to non-degenerate state (semiconductors); thermal neutron scattering, transport and production of intense beam of cold neutrons from hydrogenous condensed systems; different properties of recently discovered crystalline form of fullerene-fullerite—the third allotrope of carbon, etc.

Prof Tewari is co-editor of two research level books and has co-authored five books; two of which have been published by NCERT, New Delhi and one by CSIR New Delhi, in its Golden Jubilee series.

Prof S P Tewari was visiting Professor of Physics at Northwestern University, USA (1971–72) and Commonwealth Academic Staff Fellow at Bristol University, UK (1978–79). He has been consultant and senior participant etc in different activities of International Center for Theoretical Physics (ICTP) Trieste, Italy. He has also visited many other countries in connection with his research activities.