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Distributed Latent Heat of Phase Transitions in Low-Dimensional Conductors

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Abstract—It is shown that if the temperature of the second-order phase transition is lowered due to fluctuations, then the dominant singularity at the transition is the maximum, and not the jump in specific heat. A certain value of latent heat corresponds to this transition, and an estimate is proposed for it. The result is compared with the singularities of the specific heat and coefficient of thermal expansion in the region of Peierls and superconducting transitions.

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Notes

  1. J.W. Brill 2004, private communication.

  2. Below we discuss the temperature dependences of H and cp. It is understood that the same is true for quantities Lx, y, z and α.

  3. Where δTc is the empirical width of the transition, and it cannot be identified, say, with the width of the critical Ginzburg–Levaniuk region [17, 18].

  4. The idea of retaining the area under the curve α(T) was used in [8] to estimate TMF in the case of underdoped YBa2Cu3Ox.

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Funding

The work was supported by the Russian Science Foundation, project no. 17-12-01519.

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  1. Institute of Radioengineering and Electronics, Russian Academy of Sciences, 125009, Moscow, Russia

    V. Ya. Pokrovskii

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  1. V. Ya. Pokrovskii
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Pokrovskii, V.Y. Distributed Latent Heat of Phase Transitions in Low-Dimensional Conductors. J. Commun. Technol. Electron. 65, 1204–1207 (2020). https://doi.org/10.1134/S1064226920090089

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