Investigating electronic structure and excitations under extreme conditions gives access to a
rich variety of phenomena. High pressure typically induces behavior such as magnetic …

This review tries to establish what is the current understanding of the rare-earth
monopnictides and monochalcogenides from first principles. The rock salt structure is …

The recent discovery of superconductivity in paramagnetic UTe2 turns spotlight on a serious
candidate for spin-triplet state. To draw a complete picture of the superconducting state in …

Valence instability is a key ingredient of the unusual properties of f electron materials, yet a
clear understanding is lacking as it involves a complex interplay between f electrons and …

Valence transition could induce structural, insulator-metal, nonmagnetic-magnetic and
superconducting transitions in rare-earth metals and compounds, while the underlying …

We have measured the temperature and pressure-induced Yb valence transitions in
tetragonal YbNi 2 Ge 2 and YbPd 2 Si 2 using x-ray absorption spectroscopy in the partial …

In order to elucidate the temperature‐dependent occupancy number of Ce 4 f electrons and
valence state of Ce ions in cerium mononitride (CeN), we perform an ab initio calculation by …

In order to investigate the structure-dependent correlation strength and occupation number
of 4f electrons in cerium monoarsenide (CeAs) with the NaCl-type (B1-type) and CsCl-type …

Pressure dependence of the Ce valence in CeCu 2 Ge 2 has been measured up to 24 GPa
at 300 K and to 17 GPa at 18–20 K using x-ray absorption spectroscopy in the partial …

Using first-principles calculations we have studied the valence and structural transitions of
the rare earth monotellurides RTe (R= Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and …