Hi Marco,
Yes, a s - d transition is dipole forbidden, but the quadrupole
transition can occur, as can a transition
s - mixed p/d. The edge position in XAFS for metals like Ni and Cu is
taken at the inflection point leading to
the first main absorption feature, but is considered to have s - d
Dear everyone:
Ihave some questions about the interpretation of "white line", from anarticle
(https://doi.org/10.1038/s41467-021-27116-8) and the figure was attached. In
the article, it is said that “the sample was fully reduced to Ni (0) state at
~480 °C judging from the edge position and
