منابع مشابه
Photoelectron spectroscopy of negatively charged bismuth clusters: Bi-2, Bi-3, and Bi-4
We have recorded the 35 1 nm photoelectron spectra of Bi; , Bi; , and Bi; . The spectrum of Bi; shows transitions to at least seven electronic states of Bi, neutral, four of which are observed with vibrational resolution. Term energies, bond lengths, and vibrational frequencies are obtained for the anion ground state and for the first three excited states of Bi, . These results are compared to ...
متن کاملA new bismuth iron oxyphosphate,Bi6(Bi0.32Fe0.68)(PO4)4O4.
Iron was inserted into the known crystal structure of the bismuth phosphate oxide Bi(6.67)(PO(4))(4)O(4) to ascertain its location in the vacancies associated with the bismuth ion located at the origin of the unit cell. Single-crystal X-ray diffraction refinements converged to a model of composition Bi(6)(Bi(0.32)Fe(0.68))(PO(4))(4)O(4) (hexabismuth iron tetraphosphate tetraoxide), in which Bi ...
متن کاملSynthesis of Sm–Co and Sm–Co/Fe nanocrystals by reductive annealing of nanoparticles
We report here a simple route for the chemical synthesis of SmCo5 and Sm2Co17 single-phase and SmCo5/Fe composite nanocrystals by polyol reduction of metal precursors and subsequent calcium reductive annealing. Sm2O3 and Co nanoparticles were synthesized first, and nanocrystalline SmCo5 or Sm2Co17, compound with tunable composition was then obtained after the annealing. The composition of the c...
متن کاملEnhancement of Dielectric Properties in Epitaxial Bismuth FerriteBismuth Samarium Ferrite Superlattices
DOI: 10.1002/aelm.201600170 character.[1–4] The imposed 2D constraint between the interfaces has been exploited in perovskites to induce ferroelectricity,[5–7] enhance electromechanical and dielectric performance,[8–11] and even influence ferroic phase transitions and domain structures.[12–17] In the same vein, we recently demonstrated successful interface control of a morphotropic phase bounda...
متن کاملMechanisms of enhanced sulfur tolerance on samarium (Sm)-doped cerium oxide (CeO2) from first principles.
The role of samarium (Sm) 4f states and Sm-perturbed O 2p states in determining the sulfur tolerance of Sm-doped CeO2 was elucidated by using the density functional theory (DFT) + U calculation. We find that the sulfur tolerance of Sm-doped CeO2 is closely related to the modification of O 2p states by the strong interaction between Sm 4f and O 2p states. In particular, the availability of unocc...
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ژورنال
عنوان ژورنال: Journal of Phase Equilibria
سال: 2001
ISSN: 1054-9714
DOI: 10.1007/s12385-001-0078-y