Corpus ID: 118245496

Pressure-induced enhancement of superconductivity and superconducting-superconducting transition in CaC$\_6$

@article{Gauzzi2006PressureinducedEO,
  title={Pressure-induced enhancement of superconductivity and superconducting-superconducting transition in CaC\$\\_6\$},
  author={Andrea Gauzzi and Shinya Takashima and Nao Takeshita and Chieko Terakura and Hidenori Takagi and Nicolas Emery and Claire H{\'e}rold and Philippe Lagrange and Genevi{\`e}ve Loupias},
  journal={arXiv: Superconductivity},
  year={2006}
}
We measured the electrical resistivity, $\varrho(T)$, of superconducting CaC$\_6$ at ambient and high pressure up to 16 GPa. For $P \leq$8 GPa, we found a large increase of $T\_c$ with pressure from 11.5 up to 15.1 K. At 8 GPa, $T\_c$ drops and levels off at 5 K above 10 GPa. Correspondingly, the residual $\varrho$ increases by $\approx$ 200 times and the $\varrho(T)$ behavior becomes flat. The recovery of the pristine behavior after depressurization is suggestive of a phase transition at 8 GPa… Expand

References

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The Electron-Phonon Interaction
Publisher Summary The interaction of the conduction electrons with the lattice vibrations is at the center of the whole theory of the transport properties of solids. It determines the electrical andExpand