Phonon-Induced Superconducting State: From Metallic Hydrogen to LaH10
نویسندگان
چکیده
منابع مشابه
Ground-state structures of atomic metallic hydrogen.
Ab initio random structure searching using density functional theory is used to determine the ground-state structures of atomic metallic hydrogen from 500 GPa to 5 TPa. Including proton zero-point motion within the harmonic approximation, we estimate that molecular hydrogen dissociates into a monatomic body-centered tetragonal structure near 500 GPa (r(s)=1.23) that remains stable to 1 TPa (r(s...
متن کاملThe transition to the metallic state in low density hydrogen.
Solid atomic hydrogen is one of the simplest systems to undergo a metal-insulator transition. Near the transition, the electronic degrees of freedom become strongly correlated and their description provides a difficult challenge for theoretical methods. As a result, the order and density of the phase transition are still subject to debate. In this work, we use diffusion quantum Monte Carlo to b...
متن کاملPhonon-induced Anisotropic Dispersion Forces on a Metallic Substrate
Surfactant micelles (cetyltrimethylammonium chloride) adsorbed on Au(111) exhibit orientational order dictated by the gold crystal axes. To explain this phenomenon, we take into account the ionic contribution to the dielectric response of the metal. Since the motion of an ion inside the metallic lattice is restricted by its neighbors in an anisotropic way, the total dielectric response of the m...
متن کاملCurvature-induced optical phonon frequency shift in metallic carbon nanotubes
Ken-ichi Sasaki,1 Riichiro Saito,1 Gene Dresselhaus,2 Mildred S. Dresselhaus,3,4 Hootan Farhat,5 and Jing Kong4 1Department of Physics, Tohoku University and CREST-JST, Sendai 980-8578, Japan 2Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA 3Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02...
متن کاملElectron-phonon coupling in metallic solids from density functional theory
We present a study of electron-phonon coupling and superconductivity in metallic systems, based on first-principles electronic structure and linear response calculations. Our results are based on the density functional theory and are derived by using the full-potential linear muffin-tin orbitals method. In particular, calculations for phonon spectra, Eliashberg spectral function, and electron-p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2020
ISSN: 1898-794X,0587-4246
DOI: 10.12693/aphyspola.138.715