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Evidence for ubiquitous strong electron–phonon coupling in high-temperature superconductors
Coupling between electrons and phonons (lattice vibrations) drives the formation of the electron pairs responsible for conventional superconductivity. The lack of direct evidence for electron–phonon
Phase diagram and electronic indication of high-temperature superconductivity at 65 K in single-layer FeSe films.
The phase diagram for an FeSe monolayer grown on a SrTiO3 substrate is reported, by tuning the charge carrier concentration over a wide range through an extensive annealing procedure, and strong indications of superconductivity are observed with a transition temperature of 65±5 K.
High-temperature superconductors: Universal nodal Fermi velocity
Doping dependence might be a general feature of these materials, but it is found that the low-energy Fermi velocity of electrons is in fact universal, even among different superconductor families.
Angle-Resolved Photoemission Spectroscopy on Electronic Structure and Electron-Phonon Coupling in Cuprate Superconductors
In addition to the record high superconducting transition temperature (T{sub c}), high temperature cuprate superconductors are characterized by their unusual superconducting properties below T{sub
Electronic origin of high-temperature superconductivity in single-layer FeSe superconductor.
Investigations of the electronic structure and superconducting gap of the single-layer FeSe superconductor establish a clear case that such a simple electronic structure is compatible with high-T(c) superconductivity in iron-based superconductors.
Physical mechanisms of negative-bias temperature instability
We report first-principles calculations that elucidate the mechanisms that underlie key features of negative-bias temperature instability (NBTI). We show that the depassivation of Si–H bonds by
Fluid Core Size of Mars from Detection of the Solar Tide
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Electronic evidence of temperature-induced Lifshitz transition and topological nature in ZrTe5
High-resolution laser-based angle-resolved photoemission measurements on the electronic structure and its detailed temperature evolution of ZrTe5 provide direct electronic evidence on the temperature-induced Lifshitz transition, which gives a natural understanding on underlying origin of the resistivity anomaly in Zr Te5.
Orbital Origin of Extremely Anisotropic Superconducting Gap in Nematic Phase of FeSe Superconductor
The iron-based superconductors are characterized by multiple-orbital physics where all the five Fe 3$d$ orbitals get involved. The multiple-orbital nature gives rise to various novel phenomena like
Coupling of the B1g phonon to the antinodal electronic states of Bi2Sr2Ca0.92Y0.08Cu2O8+delta.
Angle-resolved photoemission spectroscopy on optimally doped Bi(2)Sr(2)Ca(0.92)Y(0.08)Cu(2)O(8+delta) uncovers a coupling of the electronic bands to a 40 meV mode in an extended k-space region away