Superconductivity in nitrogen-doped 3C–SiC from first-principles calculations
2017 ◽
Vol 31
(12)
◽
pp. 1750116
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Keyword(s):
The electronic structure and the lattice dynamics of N-doped 3C–SiC have been studied using the first-principles calculations. Electrons are introduced to the conduction band bottom at the X-point of the Brillouin zone. It is revealed that the acoustical modes and optical modes soften upon N doping. The softened acoustical modes contribute over twice of what the optical modes do to the electron–phonon coupling strength. We predict that the superconductivity will occur with N doping concentration beyond about 3 at.% and the transition temperature can reach 11.36 K upon doping of N at about 5 at.% for 3C–SiC.
2014 ◽
Vol 597
◽
pp. 113-116
2007 ◽
Vol 21
(18n19)
◽
pp. 3330-3333
Keyword(s):
2018 ◽
Vol 122
(19)
◽
pp. 10501-10509
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