The suffering saviour : Meditations on the last days of Christ.

Chicagoxxvii, 444 p.; 22 cm

Jacob wrestling with the angel /

Mode of access: Internet

Comparative study of the electronic structure of the ordered and disordered Cu₃Au(100) and Cu₃Au(110) surfaces

The influence of structural changes on the electronic structure has been investigated by a comparison of the angle-integrated valence and core level photoelectron spectra of ordered and disordered Cu3Au(100) and (110) surfaces. The total width of the Au 5d and Cu 3d bands does not change with the ordering state or surface orientation. The spectra for the (100) surface are compared with selfconsistent calculations and good agreement is found, for the ordered state, however with a 0.6 eV correction of the calculated Fermi level position. We observe three Au 5d derived bands at 5.1, 6.0 and 6.9 eV, in contrast to previous experimental findings. Our results indicate the existence of shortrange order above the critical temperature

Comparative study of the electronic structure of the ordered and disordered Cu3Au(100)\mathrm{Cu_3Au(100)} and Cu3Au(110)\mathrm{Cu_3Au(110)} surfaces

The influence of structural changes on the electronic structure has been investigated by a comparison of the angle-integrated valence and core level photoelectron spectra of ordered and disordered Cu3Au(100) and (110) surfaces. The total width of the Au 5d and Cu 3d bands does not change with the ordering state or surface orientation. The spectra for the (100) surface are compared with selfconsistent calculations and good agreement is found, for the ordered state, however with a 0.6 eV correction of the calculated Fermi level position. We observe three Au 5d derived bands at 5.1, 6.0 and 6.9 eV, in contrast to previous experimental findings. Our results indicate the existence of shortrange order above the critical temperature

5f-band width and hybridization in uranium silicides

X-ray-photoemission spectroscopy and bremsstrahlung-isochromat spectroscopy are utilized to examine the series of uranium silicides U<SUB>3</SUB>Si<SUB>2</SUB>, USi, USi<SUB>2</SUB>, and USi<SUB>3</SUB>. Maintaining the same ligand, this set of materials progresses from the case where direct f-f interaction is possible to one where only f-ligand interactions can occur. It is found that, while the results are dominated by the properties of the measurement techniques, there is evidence for f-band broadening with increasing ligand interactions

Experimental Evidence for an Interface Delocalization Transition in Cu3Au\mathrm{Cu_3Au}

The Cu$_3$Au(100) surface has been studied close to the bulk order-disorder transition temperature T$_0$ by x-ray diffraction under total external reflection. The order-parameter profile which has been probed in various depths is analyzed in terms of a surface-induced disorder transition. It is demonstrated that the temperature dependence of the superlattice intensity is consistent with the assumption of a disordered surface layer which exists between the ordered bulk and the vacuum at temperatures below T0 and grows logarithmically as T$_0$ is approached