Electronic structure of the $\rm Ca_3Co_4O_9$ compound from ab initio local interactions

Autor: Soret, Julien, Lepetit, Marie-Bernadette

We used fully correlated ab initio calculations to determine the effective parameters of Hubbard and t - J models for the thermoelectric misfit compound $\rm Ca_3Co_4O_9$. As for the $\rm Na_xCoO_2$ family the Fermi level orbitals are the $a_{1g}$ or

Externí odkaz: http://arxiv.org/abs/1106.2893

Fast oscillating structures in electron spectra following He^q+ + He collisions (q=1,2) at low projectile energies

Autor: Frémont, François, Hajaji, Anas, Naja, Adnan, Leclercq, Christian, Soret, Julien, Tanis, John A., Sulik, Béla, Chesnel, Jean-Yves

Publikováno v: Physical Review A
Physical Review A, American Physical Society, 2005, 72 (5), pp.050704(R). ⟨10.1103/PhysRevA.72.050704⟩
Physical Review A : Atomic, molecular, and optical physics [1990-2015]
Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2005, 72 (5), pp.050704(R). ⟨10.1103/PhysRevA.72.050704⟩

International audience; Distributions of ejected electrons following collisions of slow He+ and He2+ ions and a He target were measured for projectile energies of 20 and 40 keV, respectively. The electrons were detected at angles of 30° and 90° wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b5cdc0a3525d2fbed6186ab3744d3b2c
https://hal.archives-ouvertes.fr/hal-01220206

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