%0 Journal Article %T Phonon effects on X-ray absorption and X-ray photoemission spectra %+ Graduate School of Advanced Integration Science %+ Institut de Physique de Rennes (IPR) %A Fujikawa, Takashi %A Sakuma, Hiroto %A Niki, Kaori %A Sébilleau, Didier %Z The authors are grateful to useful comments on this manuscript by M. Kazama. Parts of this work have been funded by European FP7 MSNano network under Grant No. PIRSES-GA-2012-317554, and by COST Action MP1306 EUSpec. One of the authors (KN) is grateful to the financial support by the Career-Support Program for Woman Scientist at Chiba University. TF is grateful to the financial support from a Grant-in-Aid for Scientific Research from Ministry of Education, Science and Culture of Japan, Project No. 25246041. %< avec comité de lecture %@ 0368-2048 %J Journal of Electron Spectroscopy and Related Phenomena %I Elsevier %V 198 %P 57-67 %8 2015-01 %D 2015 %R 10.1016/j.elspec.2014.12.002 %K Electron–phonon interaction %K Debye–Waller factors %K Franck–Condon factors %K Nonequilibrium Green's function %K XPS %K XAFS %Z Physics [physics] %Z Physics [physics]/Condensed Matter [cond-mat]Journal articles %X Some important phonon effects observed in X-ray absorption and X-ray photoemis-sion spectra are discussed on the basis of nonequilibrium Green's function theory. For the pre-edge structures, the intensity associated with forbidden electric dipole transition is sensitive to temperature compared with allowed electric quadrupole transition. We also discuss the FC and their interference, which have negligible contribution to pre-edge intensity and energy shift. The quasi-particle energy is also influenced by the core displacement which can be responsible for the peak shift of the pre-edges. We also discuss the photoelectron angular distribution caused by the thermal atomic vibration. %G English %2 https://univ-rennes.hal.science/hal-01109966/document %2 https://univ-rennes.hal.science/hal-01109966/file/Phonon%20Effects%20on%20X-ray%20Absorption%20and%20X-ray.pdf %L hal-01109966 %U https://univ-rennes.hal.science/hal-01109966 %~ UNIV-RENNES1 %~ CNRS %~ OSUR %~ IPR %~ IPR-MN %~ ZZ-IPR-MN %~ UR1-SPM %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ UR1-SDLMJONCH %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ UR1-MMS