TY  - JOUR
A1  - Martensson, Nils
A1  - Föhlisch, Alexander
A1  - Svensson, Svante
T1  - Uppsala and Berkeley
BT  - two essential laboratories in the development of modern photoelectron spectroscopy
JF  - Journal of vacuum science & technology : JVST ; an AVS journal / A
N2  - The development of modern photoelectron spectroscopy is reviewed with a special focus on the importance of research at Uppsala University and at Berkeley. The influence of two pioneers, Kai Siegbahn and Dave Shirley, is underlined. Early interaction between the two centers helped to kick-start the field. Both laboratories have continued to play an important role in the field, both in terms of creating new experimental capabilities and developing the theoretical understanding of the spectroscopic processes.
KW  - Electronic structure
KW  - Condensed matter physics
KW  - X-ray emission spectroscopy
KW  - Electron spectroscopy
KW  - Photoelectron spectroscopy
KW  - Nuclear physics
KW  - Storage rings
KW  - Synchrotron radiation
KW  - Gas phase
KW  - Surface science
Y1  - 2022
U6  - https://doi.org/10.1116/6.0001879
SN  - 0734-2101
SN  - 1520-8559
VL  - 40
IS  - 4
PB  - American Institute of Physics
CY  - New York
ER  - 
TY  - JOUR
A1  - Johansson, Fredrik O. L.
A1  - Leitner, Torsten
A1  - Bidermane, Ieva
A1  - Born, Artur
A1  - Föhlisch, Alexander
A1  - Svensson, Svante
A1  - Mårtensson, Nils
A1  - Lindblad, Andreas
T1  - Auger- and photoelectron coincidences of molecular O2 adsorbed on Ag(111)
JF  - Journal of electron spectroscopy and related phenomena : the international journal on theoretical and experimental aspects of electron spectroscopy
N2  - The oxygen on Ag(111) system has been investigated with Auger electron-photoelectron coincidence spectroscopy (APECS). 
The coincidence spectra between O 1s core level photoelectrons and O KLL Auger electrons have been studied together with Ag(3)d/AgM4,5NN coincidences. 
We also describe the electron-electron coincidence spectrometer setup, CoESCA, consisting of two angle resolved time-of-flight spectrometers at a synchrotron light source. 
Contributions from molecular oxygen and chemisorbed oxygen are assigned using the coincidence data, conclusions are drawn primarily from the O 1s/O KLL data. 
The data acquisition and treatment procedure are also outlined. 
The chemisorbed oxygen species observed are relevant for the catalytic ethylene oxidation.
KW  - oxygen/Ag(111)
KW  - Auger electron
KW  - photoelectron
KW  - coincidence
KW  - APECS
KW  - spectroscopy
Y1  - 2022
U6  - https://doi.org/10.1016/j.elspec.2022.147174
SN  - 0368-2048
SN  - 1873-2526
VL  - 256
PB  - Elsevier
CY  - New York, NY [u.a.]
ER  -