title: Orientation-resolved 3d(5/2) binding energy shift of Rh and Pd surfaces: anisotropy of the skin-depth lattice strain and quantum trapping.
abstract: Incorporating the BOLS correlation algorithm [Y. Sun, J. Phys. Chem. C, 2009, 113, 14696] into high-resolution XPS measurements [J. N. Andersen, et al., Phys. Rev. B: Condens. Matter, 1994, 50, 17525; A. Baraldi, et al., New J. Phys., 2007, 9, 143] has produced an effective way of determining the 3d(5/2) energy levels of isolated Rh(302.163 +/- 0.003 eV) and Pd (330.261 +/- 0.004 eV eV) atoms and their respective bulk shifts (4.367 and 4.359 eV) with a refinement of the effective atomic coordination numbers of the top (100), (110), and (111) atomic layers (4.00, 3.87, and 4.26, respectively). It is further confirmed that the shorter and stronger bonds between under-coordinated atoms induce local strain and skin-depth charge-and-energy quantum trapping and, hence, dictate globally the positive core level binding energy shifts.
authors.affiliation: School of Physics and Microelectronics Science, Hunan University, Changsha 410082, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Yan Guang
authors.initials: YG
authors.lastname: Nie
authors.forename: Ji Sheng
authors.initials: JS
authors.lastname: Pan
authors.forename: L K
authors.initials: LK
authors.lastname: Pan
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Sun
authors.forename: Ling Ling
authors.initials: LL
authors.lastname: Wang
authors.forename: Chang Q
authors.initials: CQ
authors.lastname: Sun