On the electronic structure of electron doped LaOFeAs as seen by X-ray absorption spectroscopy

We investigated the recently found superconductor LaO_{1-x}F_xFeAs by X-ray absorption spectroscopy (XAS). From a comparison of the O K-edge with LDA calculations we find good agreement and are able to explain the structure and changes of the spectra with electron doping. An important result from this edge is a limitation of the Hubbard U to values not significantly larger than 1 eV. From experimental Fe L_2,3-edge spectra and charge transfer multiplet calculations we gain further information on important physical values such as hopping parameters, the charge transfer energy Delta, and the on-site Hubbard U. Furthermore we find the system to be very covalent with a large amount of ligand holes. A shift in the chemical potential is visible in the O K- and Fe L_2,3-edge spectra which emphasizes the importance of band effects in these compounds.Comment: 4 pages, 2 figure

Collective and noncollective states in (120)Te

High-spin states in (120)Te were populated in the reaction (80)Se((48)Ca, alpha 4n)(120)Te at a beam energy of 207 MeV and gamma-ray coincidences were measured using the Gammasphere spectrometer. The previously known level scheme is extended to higher spin and new interband transitions and side-feeding branches are established. Five highly deformed rotational bands, extending up to almost I = 50, are observed for the first time. The bands are compared with similar structures found recently in neighboring nuclei. The experimental results are interpreted within the framework of the cranked Nilsson-Strutinsky model. Configuration assignments to several terminating states and to the high-spin bands are discussed

Plastische Dehnungserhoehungsfaktoren in Regelwerken und Vorschlag zur Etablierung angemessenerer Faktoren

TIB: RO 3238 (4) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Berechnung akkumulierter Dehnungen nach der Vereinfachten Fliesszonentheorie auf der Grundlage der Zarka-Methode bei zyklischer Belastung (Ratcheting-Nachweis)

SIGLEAvailable from TIB Hannover: F01B1788 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)DEGerman

Verifikation der Vereinfachten Fliesszonentheorie - bei Anwendung der Finite Elemente Methode (subroutine fuer ANSYS)

Available from TIB Hannover: F01B1789 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Vereinfachte elastisch-plastische Berechnung von Stahltragwerken Schlussbericht

Available from TIB Hannover: F04B175 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman