Insights into the structure and superconductivity of lanthanum under high-pressure

Superconductivity of elements

“…The Van Hove singularities pass through the Fermi level, resulting in a particular anomaly in the bulk modulus and the peculiarities of the e-p coupling in the phonon spectrum, due to the Fermi surface topology changes [8,207,231]. As another possibility, Wang et al suggest that the shielding effect of the d-orbital near the Fermi level at 12 GPa allows T c to rise, while the electronic structure distortion destroys the Cooper pair contributed by the d-orbital electrons at around 15 GPa [232].…”

Superconductivity of elements

“…The Van Hove singularities pass through the Fermi level, resulting in a particular anomaly in the bulk modulus and the peculiarities of the e-p coupling in the phonon spectrum, due to the Fermi surface topology changes [8,207,231]. As another possibility, Wang et al suggest that the shielding effect of the d-orbital near the Fermi level at 12 GPa allows T c to rise, while the electronic structure distortion destroys the Cooper pair contributed by the d-orbital electrons at around 15 GPa [232].…”

Superconductivity of elements

“…The Van Hove singularities pass through the Fermi level, resulting in a particular anomaly in the bulk modulus and the peculiarities of the e-p coupling in the phonon spectrum, due to the Fermi surface topology changes [8,207,231]. As another possibility, Wang et al suggest that the shielding effect of the d-orbital near the Fermi level at 12 GPa allows T c to rise, while the electronic structure distortion destroys the Cooper pair contributed by the d-orbital electrons at around 15 GPa [232].…”

Superconductivity of elements

“…The Van Hove singularities pass through the Fermi level, resulting in a particular anomaly in the bulk modulus and the peculiarities of the e-p coupling in the phonon spectrum, due to the Fermi surface topology changes [8,207,231]. As another possibility, Wang et al suggest that the shielding effect of the d-orbital near the Fermi level at 12 GPa allows T c to rise, while the electronic structure distortion destroys the Cooper pair contributed by the d-orbital electrons at around 15 GPa [232].…”