Evidence of Strong Electron Correlations in $\gamma$-Iron
スポンサーリンク
概要
- 論文の詳細を見る
Single-particle excitation spectra of $\gamma$-Fe in the paramagnetic state have been investigated by means of the first-principles dynamical coherent potential approximation theory which has recently been developed. It is found that the central peak in the density of states consisting of the t2g bands is destroyed by electron correlations, and the Mott–Hubbard type correlated bands appear. The results indicate that the $\gamma$-Fe can behave as correlated electrons at high temperatures.
- 2009-09-15
著者
-
Kakehashi Yoshiro
Department Of Physics And Earth Sciences Faculty Of Science University Of Ryukyus
-
Tamashiro Toshihito
Department Of Physics And Earth Sciences Faculty Of Science University Of The Ryukyus
-
Patoary M.
Department of Physics and Earth Sciences, Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213
関連論文
- Theory of the Invar Effect in FeNi Alloy.II.Forced Volume Magnetostriction and Bulk Modulus
- Theory of the Invar Effect in FeNi Alloy
- On the Anomalous Thermal Expansion of FeNi Invar Alloy
- Nonlocal Excitation Spectra in Two-Dimensional Doped Hubbard Model(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Dynamical Coherent-Potential Approximation and Tight-Binding Linear Muffintin Orbital Approach to Correlated Electron System(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Phenomenological Theory of Multiple Spin Density Waves in fcc Transition Metals(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Local-Ansatz Approach with Momentum Dependent Variational Parameters to Correlated Electron Systems(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Kink Structure in the Quasiparticle Band of Doped Hubbard Systems(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Ising Model and Bethe Approximation in Itinerant-Electron Systems.I
- First-Principles Dynamical Coherent-Potential Approximation Approach to the Ferromagnetism of Fe, Co, and Ni
- Quantitative Aspects of the Dynamical Coherent Potential Approximation in Harmonic Approximation
- Cohesive Properties of 3d Transition Metal Alloys
- Addendum to “Phenomenological Theory of Multiple Spin Density Waves in fcc Transition Metals”
- The Pressure-Volume Relation and Cohesive Properties in Transition Metal Alloys
- A Theory of the Magnetovolume Effect at Finite Temperatures
- Magnetism of Fe,Co,and Ni in the CPA and Full Static Approximation
- Anomalous Volume Expansion and Magnetovolume Effect in Cu-Mn
- Evidence of Strong Electron Correlations in $\gamma$-Iron
- Full Self-Consistent Projection Operator Approach to Nonlocal Excitations in Solids
- Theory of the Finite-Temperature Magnetism of NiMn -Local Environments Effect and Glass-Like Phase-
- Ising Model and Bethe Approximation in Itinerant-Electron Systems. II. Iron and Nickel
- Momentum Dependent Local-Ansatz with Hybrid Wavefunction from Weak to Strong Electron Correlations
- A New Electronic Theory of the Spin Glass State
- Theory of Finite-Temperature Magnetixn of NiMn.II.Bithe Thiory,Susceptibility and Atomic Short Range Order