Theory of Valence-Fluctuating Tm Impurities.I
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概要
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A new formalism is presented for describing mixed valent Tm impurities fluc-tuating between two magnetic configurations. Based on the self-consistent perturbaLion scheme, the present formalism incorporates not only the valence fluctuationbetween 4f" and 4f", but also the multiscattering process of 4f" and a conductionelectron, yielding a singlet bound state. Thus the ground state is a Kondo singlet,which however is different from the ordinary Kondo state and conceptually new inthat the length of the local moment of the impurity is fluctuating between the twovalues j = 6 and J= 7 / 2. Numerical calculations are presented for the spectral distribu-lion function of these states. Systematic study of the Kondo temperature T. yieldsthat T. is substantially low when the number of f electrons is close to 12. Contribution of the above scattering processes to the f-electron spectral function and themagnetic susceptibility is also disscussed.
- 社団法人日本物理学会の論文
- 1989-11-15
著者
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SASO Tetsuro
Department of Physics, Saitama University
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Saso Tetsuro
Department Of Physics Faculty Of Science Saitama University
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Saso Tetsuro
Department Of Physics Tohoku University
関連論文
- Introduction : Chapter 1. Introduction
- Localization and Interaction in One-Dimensional Electron Systems
- Impurity-Induced Soliton Formation in Quasi-One Dimensional Superconducting State
- Self-Consistent Perturbational Study of Insulator-to-Metal Transition in Kondo Insulators due to Strong Magnetic Field
- Theory of Valence-Fluctuating Tm Impurities.I
- Calculation of Optical Conductivity of YbB_ using Realistic Tight-binding Model
- Specific Heat-Coefficient of YbAl_3 Studied by Combined Nearly Free Electron Conduction Band Hybridized with Localized f Electrons with Correlation Effect
- Absence of Hybridization Gap in Heavy Electron Systems and Analysis of YbAl_3 in Terms of Nearly Free Electron Conduction Band(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Effects of Strong Correlation and Magnetic Field on Kondo Insulators
- Calculation of Optical Conductivity, Resistivity and Thermopower of Filled Skutterudite CeRu_4Sb_ based on a Realistic Tight-binding Model with Strong Correlation
- Modified Perturbation Theory for Strongly Correlated Electron Systems
- A Unfied Theory of Dynamical Mean Field and Spin Fluctuations
- Modified Perturbation Theory Applied to Kondo-Type Transport through a Quantum Dot under a Magnetic Field
- Magnetic Field Effects on Transport Properties of a Quantum Dot Studied by Modified Perturbation Theory
- Optical conductivity of Ce-based filled skutterudites
- 1/N and Quantum Monte Carlo Studies of a Magnetic Impurity in an Insulator with a Small Gap
- Investigation of the two-particle-self-consistent theory for the single-impurity Anderson model and an extension to the case of strong correlation
- Anomalous Metal-Insulator Transition in Filled Skutterudite CeOs_4Sb_
- Quantum Monte Carlo Simulation of One-Dimensional Periodic Anderson Model
- Scattering Mechanisms in Heavily Doped Semiconductors. II. Effect of Mass Anisotropy and Multiple Scattering
- Numerical Simulation of the Dynamical Conductivity of One-Dimensional Disordered Systems by MacKinnon's Method
- Role of Commensurability Energy in Impurity Pinning of One-Dimensional Charge Density Waves
- Quantum Fluctuation of Pinned Charge Density Waves vs Superconducting Fluctuation in One-Dimensional Conductors
- Quantum Monte Carlo Study on Impurity Pinning in One-Dimensional Interacting Electron Systems-Competition between Charge Density and Superconducting Fluctuations-
- The Impurity Pinning of a Spin-Density Wave in One-Dimensional Interacting Electron Systems
- Formation Mechanism of Hybridization Gap in Kondo Insulators based on a Realistic Band Model and Application to YbB_
- Scattering Mechanism in Heavily Doped Semiconductors. I. Maxima in Resistivity and Hall Coefficient
- Magnetic Impurity in Insulators with Small Energy Gap
- Variational and Self-Consistent Perturbational Theories for Generalized Kondo Systems
- Magnetic-Field-induced Antiferromagnetism in Two-dimensional Hubbard Model : Analysis of CeRhIn_5(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Magnetization Curve of the Infinite-Dimensional Hubbard Model
- Variational Theory for Two-Impurity Anderson Model : Condensed Matter and Statistical Physics
- Correlation Effects on Optical Conductivity of FeSi
- Magnetic field induced antiferromagnetism in two-dimensional Hubbard model: Analysis of CeRhIn5