Compression for data archiving and backup revisited
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
We have directly measured thermally induced changes in surface and bulk energy-band dispersions of copper by examining angle-resolved photoemission from Cu(111) and Cu(100) surfaces for temperatures from 25 to 500°C. Polarized synchrotron radiation was used as the photon source. Observed shifts in the bulk band structure are in reasonable agreement with energy shifts calculated for the corresponding temperaturedependent lattice changes. The measured temperature coefficient for the upper d band along Λ is 1.5(±0.1)×10-4 eV/K, while the lower edge of the d bands shifts by 2.0(±0.2)×10-4 eV/K. The d-band width decreases with temperature at a rate of 0.5(±0.2)×10-4 eV/K as it shifts to higher energy. The Cu(111) surface state shifts toward EF with a measured temperature coefficient of 2.7(±0.1)×10-4 eV/K. © 1979 The American Physical Society.
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
J.H. Stathis, R. Bolam, et al.
INFOS 2005
C.M. Brown, L. Cristofolini, et al.
Chemistry of Materials
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering