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Unconventional pairing in doped band insulators on a honeycomb lattice: the role of the disconnected Fermi surface and a possible application to superconducting β-MNCl (M=Hf, Zr)
- Source :
- Science and Technology of Advanced Materials, Vol 9, Iss 4, p 044202 (2008)
- Publication Year :
- 2008
- Publisher :
- Taylor & Francis Group, 2008.
-
Abstract
- We investigate the possibility of realizing unconventional superconductivity in doped band insulators on the square and honeycomb lattices. The latter lattice is found to be a good candidate due to the disconnectivity of the Fermi surface. We propose applying the theory to the superconductivity in doped layered nitride β-MNCl (M= Hf, Zr). Finally, we compare two groups of superconductors with disconnected Fermi surface, β-MNCl and the iron pnictides, which have high critical temperature Tc, despite some faults against superconductivity are present.
- Subjects :
- High critical temperature
Focus Papers
High-temperature superconductivity
Materials science
band insulator
lcsh:Biotechnology
spin fluctuations
02 engineering and technology
Nitride
010402 general chemistry
01 natural sciences
law.invention
β-MNCl
law
Lattice (order)
Condensed Matter::Superconductivity
lcsh:TP248.13-248.65
lcsh:TA401-492
General Materials Science
Superconductivity
Condensed matter physics
superconductivity
Doping
Fermi surface
pnictides
021001 nanoscience & nanotechnology
0104 chemical sciences
Pairing
Condensed Matter::Strongly Correlated Electrons
lcsh:Materials of engineering and construction. Mechanics of materials
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 18785514 and 14686996
- Volume :
- 9
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Science and Technology of Advanced Materials
- Accession number :
- edsair.doi.dedup.....5270c15059b0efa043e55ab2ac26e709