Effect of SDW fluctuations on the specific heat jump in iron pnictides at a superconducting transition. Kuzmanovski, D., Levchenko, A., Khodas, M., & Vavilov, M. G. 1, 2014.
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Paper abstract bibtex Measurements of the specific heat jump at the onset of superconducting transition in the iron-pnictide compounds revealed strong variation of its magnitude as a function of doping that is peaked near the optimal doping. We show that this behavior is direct manifestation of the coexistence between spin-density-wave and superconducting orders and the peak originates from thermal fluctuations of the spin-density-waves near the end point of the coexistence phase -- a tetracritical point. Thermal fluctuations result in a power-law dependence of the specific heat jump that is stronger than the contribution of mass renormalization due to quantum fluctuations of spin-density-waves in the vicinity of the putative critical point beneath the superconducting dome.
@article{ mendeley_6103082471,
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abstract = {Measurements of the specific heat jump at the onset of superconducting transition in the iron-pnictide compounds revealed strong variation of its magnitude as a function of doping that is peaked near the optimal doping. We show that this behavior is direct manifestation of the coexistence between spin-density-wave and superconducting orders and the peak originates from thermal fluctuations of the spin-density-waves near the end point of the coexistence phase -- a tetracritical point. Thermal fluctuations result in a power-law dependence of the specific heat jump that is stronger than the contribution of mass renormalization due to quantum fluctuations of spin-density-waves in the vicinity of the putative critical point beneath the superconducting dome.},
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title = {Effect of SDW fluctuations on the specific heat jump in iron pnictides at a superconducting transition},
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author = {D {Kuzmanovski} and A {Levchenko} and M {Khodas} and M G {Vavilov}},
genre = {Superconductivity},
pages = {8},
url = {http://arxiv.org/abs/1401.1118},
arxiv = {1401.1118},
modified = {1393515648},
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dateaccessed = {11/02/14}
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