Electronic Structures and Photoemission Spectroscopy of Double-Perovskite Ba2FeMoO6

Ferromagnetic resonance in double perovskite Ba2FeMoO6

In this work the study of the ferromagnetic resonance and of the electrical conductivity in the perovskite sample, Ba2FeMoO6, is presented. Double perovskite has been manufactured by conventional ceramic method sintering in an inert gas atmosphere. Electrical conductivity, of about 1000–1400 S/m, presents metallic behavior in the ferromagnetic region and semiconducting response in the paramagne...

Orientation-dependent C60 electronic structures revealed by photoemission spectroscopy.

We observe, with angle-resolved photoemission, a dramatic change in the electronic structure of two C60 monolayers, deposited, respectively, on Ag (111) and (100) substrates, and similarly doped with potassium to half filling of the C60 lowest unoccupied molecular orbital. The Fermi surface symmetry, the bandwidth, and the curvature of the dispersion at Gamma point are different. Orientations o...

Surface and bulk electronic structures of LaFeAsO studied by angle-resolved photoemission spectroscopy

Electronic structure of MgB2 from angle-resolved photoemission spectroscopy.

The first angle-resolved photoemission spectroscopy results from MgB2 single crystals are reported. Along the GammaK and GammaM directions, we observed three distinct dispersive features approaching the Fermi energy. These can be assigned to the theoretically predicted sigma (B 2p(x,y)) and pi (B 2p(z)) bands. In addition, a small parabolic-like band is detected around the Gamma point, which ca...

Electronic and bonding structures of B-C-N thin films investigated by x-ray absorption and photoemission spectroscopy

X-ray absorption near-edge structure ~XANES! and valence-band photoelectron spectroscopy ~PES! were used to investigate the electronic and bonding structures of B-C-N thin films. The intensities of the sp-bonded features in the C K-edge XANES spectra are found to generally decrease as the C concentration increases, whereas the intensities of the sp-bonded features in the spectra of N K-edge XAN...