Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental time-resolved photoemission and ab initio study of
  lifetimes of excited electrons in Mo and Rh   We have studied the relaxation dynamics of optically excited electrons in
molybdenum and rhodium by means of time resolved two-photon photoemission
spectroscopy (TR-2PPE) and ab initio electron self-energy calculations
performed within the GW and GW+T approximations. Both theoretical approaches
reproduce qualitatively the experimentally observed trends and differences in
the lifetimes of excited electrons in molybdenum and rhodium. For excitation
energies exceeding the Fermi energy by more than 1 eV, the GW+T theory yields
lifetimes in quantitative agreement with the experimental results. As one of
the relevant mechanisms causing different excited state lifetime in Mo and Rh
we identify the occupation of the 4d bands. An increasing occupation of the 4d
bands results in an efficient decrease of the lifetime even for rather small
excitation energies of a few 100 meV.

37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th