Journal
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
Volume 9, Issue 4, Pages -Publisher
NATL INST MATERIALS SCIENCE
DOI: 10.1088/1468-6996/9/4/044202
Keywords
beta-MNCl; superconductivity; band insulator; Fermi surface; spin fluctuations; pnictides
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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 beta-MNCl (M = Hf, Zr). Finally, we compare two groups of superconductors with disconnected Fermi surface, beta-MNCl and the iron pnictides, which have high critical temperature T-c, despite some faults against superconductivity are present.
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