First-Principles Understanding of the Anomalous Structural Change in an Expanded Liquid Alkali Metal
スポンサーリンク
概要
- 論文の詳細を見る
Based on a model derived from the first-principles Hamiltonian by treating the electron–ion pseudopotential as perturbation, we have studied the local ionic structure of an expanded liquid alkali metal to find that the distance between adjacent ions decreases despite the increase of the mean interionic distance with volume expansion. This anomalous feature of the interionic contraction, which is in quantitatively good accord with experiment for liquid Rb, is attributed to an enhanced attraction working between valence electrons in the low-density electron gas, combined with the existence of the ionic core region from which valence electrons are excluded.
- Physical Society of Japanの論文
- 2009-05-15
著者
-
Maebashi Hideaki
Institute For Solid State Physics University Of Tokyo
-
Takada Yasutami
Institute For Solid Physics University Of Tokyo
関連論文
- Coulomb Hole in a He Atom
- Strong Electron Correlation in a Localized State Described in Terms of Extended States : General Formulation and Illustration in a Helium Atom
- Superconductivity Due to Interband Attraction : Competition between Diagonal and Off-Diagonal Long-Range Orders
- Superconductivity from an Insulator
- Effect of Electron Correlation on the Bragg Reflection : Condensed Matter: Electronic Properties, etc.
- Hopping-Integral Expansion from the Limit of Zero Bandwidth in the Infinite-Dimensional Hubbard-Holstein Model
- Biexciton Formation in the Nonadiabatic Mutual-Polarization Mechanism(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- The Hubbard-Holstein Model with Anharmonic Phonons in One Dimension (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- First-Principles Understanding of the Anomalous Structural Change in an Expanded Liquid Alkali Metal
- Plasmon Mechanism of Superconductivity in the Multivalley Electron Gas
- Superconductivity in the Half-Filled Hubbard-Holstein Model in the Antiadiabatic Region
- Quantum Fluctuations in a Four-Body Coulomb System and Breakdown of the Adiabatic Approximation (Cross-disciplinary Physics and Related Areas of Science and Technology)
- Enhanced Spin Susceptibility toward the Charge-Ordering Transition in a Two-Dimensional Extended Hubbard Model
- Coulomb Frustrated Phase Separation in Quasi-Two-Dimensional Organic Conductors on the Verge of Charge Ordering
- Spin-Charge Crossover in Negatively Pressured Alkali Metals
- Explanation of the Anomalous Isotope Effect in Superconducting Alkali-Metal-Doped Fullerenes
- Fermi Surface Deformation Near Charge-Ordering Transition