Thermodynamic properties of the superconductivity in quasi-two-dimensional Dirac electronic systems |
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| Authors: | O. Abah M. N. Kiselev |
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| Affiliation: | (1) Research Institute of Physicochemical Problems of Belarusian State University, 14 Leningradskaya St., Minsk , 220080, Belarus;(2) Institute of Molecular and Atomic Physics of NAS of Belarus, 70 Nezalezhnasti Ave., Minsk , 220072, Belarus;(3) Belarusian State University, 4 Nezalezhnasti Ave., Minsk , 220050, Belarus |
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| Abstract: | ![]()
The thermodynamic properties of superconducting Dirac electronic systems is analyzed in the vicinity of quantum critical point. The system is characterized by a quantum critical point at zero doping, such that the critical temperature vanishes below some finite value of interaction strength. It is found that the specific heat jump of the system largely deviates from the conventional BCS theory value in the vicinity of quantum critical point. We investigated the region of applicability of the mean-field theory using the Ginzburg-Landau functional. |
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