63 citations · 397 across the 18 of their papers we have counts for
4 papers · 1 filter
The structural phase transition and loss of magnetic moments in NpO2: ab initio approach to the crystal and mean field
A. V. Nikolaev, K. H. Michel
We discuss the triple- structures for the ordered cubic phase of NpO, which are and . A special care should be taken to discriminate betwee…
Intra- site 4f-5d electronic correlations in the quadrupolar model of the gamma-alpha phase transition in Ce
A. V. Nikolaev, K. H. Michel
As a possible mechanism of the phase transition in pristine cerium a change of the electronic density from a disordered state with symmetry Fm-3m to an ordered state Pa-3 has…
Microscopic theory of quadrupolar ordering in TmTe
A. V. Nikolaev, K. H. Michel
We have calculated the crystal electric field of TmTe (T>T_Q) and have obtained that the ground state of a Tm 4f hole is the doublet in agreement with Mossbauer experiments.…
New theory of the gamma-alpha phase transition in Ce: quadrupolar ordering
A. V. Nikolaev, K. H. Michel
We present a theoretical model of the "isostructural" γ-αphase transition in Ce which is based on quadrupolar interactions due to coupled charge density fluctuations of 4f electron…