Electron Correlation and Ferromagnetism of Transition Metals

Electron interactions and ferromagnetism in metals

2014 It is suggested that the effects of electron correlation in metallic ferromagnetics, which must be included in discussions based on the collective electron treatment, could be considered from the point of view of plasma theory, and that some features of the spin wave treatment are thereby introduced. LE JOURNAL DE PHYSIQUE ET LE RADIUM TOME 20, FÉVRIER 1959,

Collective electron ferromagnetism in metals and alloys

Electron correlation effects and ferromagnetism in iron

Electron correlation effects in Fe are analysed using a first-principles linear combination of atomic orbitals scheme. In our approach, we first use a local orbital density functional solution to introduce a Hubbard Hamiltonian without fitting parameters. In a second step, we introduce a many-body solution to this Hamiltonian using a dynamical mean-field approximation. Our analysis shows that m...

Correlation Effects in Transition Metals

We review the recent progress in the theory of electron correlations in transition metals. Both qualitative picture and the quantitative results obtained for the magnetic moments, exchange splittings, Stoner parameter and magnetovolume effect of Fe, Co and Ni are presented and discussed in detail.

Distinguishing attosecond electron-electron scattering and screening in transition metals.

Electron-electron interactions are the fastest processes in materials, occurring on femtosecond to attosecond timescales, depending on the electronic band structure of the material and the excitation energy. Such interactions can play a dominant role in light-induced processes such as nano-enhanced plasmonics and catalysis, light harvesting, or phase transitions. However, to date it has not bee...