B. P. Doyle

The BEAR Beamline at Elettra

The BEAR (Bending Magnet for Emission Absorption and Reflectivity) beamline is installed at the right exit of the 8.1 bending magnet at ELETTRA. The beamline — in operation since January 2003 — delivers linear and circularly polarized radiation in the 5 – 1600 eV energy range. The experimental station is composed of a UHV chamber for reflectivity, absorption, fluorescence and angle resolved photoemission measurements and a UHV chamber for in‐situ sample preparation.

Electronic structure of C60 on Au(887)

We present an analysis of the electronic structure of C60 adsorbed on a vicinal Au(111) surface at different fullerene coverages using photoemission, x-ray absorption, and scanning tunneling microscopy/spectroscopy (STS). STS provides a straightforward determination of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) levels with respect to the Fermi energy. At C60 coverages of 0.5 and 1 ML a 2.7 eV wide HOMO-LUMO gap is found. The near-edge x-ray absorption fine structure (NEXAFS) spectrum for the 0.5 ML C60 nanomesh structure displays a significant intensity at the low energy side of the LUMO exciton peak, which is explained as due to absorption into HOMO-LUMO gap states localized at individual C60 cluster edges. From 0.5 to 1 ML we observe a rigid shift of the HOMO-LUMO peaks in the STS spectra and an almost complete quenching of the gap states feature in NEXAFS.

Electronic structure of Pr0.67Ca0.33MnO3 near the Fermi level studied by ultraviolet photoelectron and x-ray absorption spectroscopy

We have investigated the temperature-dependent changes in the near-

Efficiency of gratings in the conical diffraction mounting for an EUV time-compensated monochromator

{E}_{F}

Quantitative resonant soft x-ray reflectivity of ultrathin anisotropic organic layers: Simulation and experiment of PTCDA on Au

occupied and unoccupied states of

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

{\mathrm{Pr}}_{0.67}{\mathrm{Ca}}_{0.33}{\mathrm{MnO}}_{3}

Doped holes and Mn valence in manganites: a polarized soft x-ray absorption study of LaMnO3 and quasi-2D manganite systems

which shows the presence of ferromagnetic and antiferromagnetic phases. The temperature-dependent changes in the charge and orbital degrees of freedom and associated changes in the

Molecular states of polyacenes grown on noble metal surfaces

\mathrm{Mn}\phantom{\rule{0.3em}{0ex}}3d\char21{}\mathrm{O}\phantom{\rule{0.3em}{0ex}}2p

Positive and negative magnetocaloric effects in CeSi

hybridization result in varied

Delocalization of the U 5f magnetic moments in U(In0.6Sn0.4)3 and UNiSn under high pressure

\mathrm{O}\phantom{\rule{0.3em}{0ex}}2p