Matthieu Le Tacon

Jeudi 2 juillet 2020 aura lieu un séminaire LPEM par zoom à 14h

Pressure Control of Competing Orders in Superconductors

Matthieu Le Tacon

Institute for Quantum Materials and Technologies

Karlsruhe Institute of Technology

Hermann-v.-Helmholtz-Platz 1

76344 Karlsruhe, Germany.

External control of electronic phases in correlated-electron materials is a long-standing challenge of condensed-matter research.

In this talk, I will show how the combination of pressure tuning and x-ray spectroscopy has been used in the course of the last decade to gain fresh insights on the physics of conventional and unconventional superconductors.

I will in particular report on recent studies of the lattice dynamics by means of inelastic x-ray scattering in various families of superconductors exhibiting charge-density-waves, from a-U to dichalcogenides and cuprates.

S. Raymond, et al. Phys. Rev. Lett. 107 136401 (2011)

M. Leroux, et al. Phys. Rev. B 92 140303 (2015)

S. M. Souliou, et al. Phys. Rev. B 97 020503 (2018)

H. H. Kim, S. M. Souliou et al. Science 362 1040 (2018)

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