Valence, coordination number, and PAV cells in metallic rare earth compounds

However, exploiting the EELS spectra (in contrast to the more commonly used core level XPS spectra with photoelectrons having an energy equivalent with BIS / 1 7 / )

In the particular case of formally tetravalent light Rare Earth insulating compounds (Ce02, CeF ) , the quantitative interpretation of spectroscopic experiments is a real

The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.. L’archive ouverte pluridisciplinaire HAL, est

Considérant le contraste de la diffraction X dans les topographies, nous suggérons que, dans l'état désaimanté, des structures existent entre des domaines aimantés selon l'une

We also expected to further our understanding of the mecha- nism of hydrogen absorption in R-Fe compounds by studying the effect of oxygen in a structure completely unrelated to

— Neutron scattering results show that the introduction of hydrogen into RFe 2 compounds (R = Tm, Ho, and Er) significantly lowers the overall Curie temperature and produces a

In intermetallic rare earth compounds one can have two kinds of structural instabilities, one due to an electronic ordering of 4f shell electrons (cooperative Jahn Teller effect)

and the moment and the phase boundary in the pressure-temperature plane. Recently, we have studied the temperature renormalization of the soft mode above the