| 1. |
- Eisebitt, S, et al.
(författare)
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Electronic structure of single-wall carbon nanotubes studied by resonant inelastic X-ray scattering
- 1998
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Ingår i: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING. - : SPRINGER VERLAG. - 0947-8396. ; 67:1, s. 89-93
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The electronic structure of single-wall nanotubes in "buckypaper" has been studied by using soft X-ray emission and resonant inelastic soft X-ray scattering. We observe electronic states derived from the K point and located close to E-F in the nanotubes,
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| 2. |
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| 3. |
- Agui, A, et al.
(författare)
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Direct observation of interface effects of thin AlAs(100) layers buried in GaAs
- 2000
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Ingår i: APPLIED SURFACE SCIENCE. - : ELSEVIER SCIENCE BV. - 0169-4332. ; 166:1-4, s. 309-312
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Tidskriftsartikel (refereegranskat)abstract
- A study of the electronic structure of ultrathin AlAs layers buried in GaAs(100) and their interfaces is presented. Al L-2,L-3 soft-X-ray-emission (SXE) spectra from the AlAs layers were measured. The spectra show distinct thickness-dependent features, wh
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| 4. |
- Agui, A, et al.
(författare)
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Resonant OK alpha emission spectra of CuGe0(3) single-crystal
- 2001
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Ingår i: SOLID STATE COMMUNICATIONS. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0038-1098. ; 118:12, s. 619-622
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Tidskriftsartikel (refereegranskat)abstract
- The electronic structure of CuGeO3 has been studied using soft X-ray absorption and emission spectroscopy. The unoccupied and occupied valence states are reflected by O 1s absorption and OK alpha emission spectra, respectively. An absorption pre-peak appe
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| 5. |
- Guo, J. H., et al.
(författare)
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X-ray emission spectroscopy of hydrogen bonding and electronic structure of liquid water
- 2002
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 89:13
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Tidskriftsartikel (refereegranskat)abstract
- We use x-ray emission spectroscopy to examine the influence of the intermolecular interaction on the local electronic structure of liquid water. By comparing x-ray emission spectra of the water molecule and liquid water, we find a strong involvement of the a(1)-symmetry valence-orbital in the hydrogen bonding. The local electronic structure of water molecules, where one hydrogen bond is broken at the hydrogen site, is separately determined. Our results provide an illustration of the important potential of x-ray emission spectroscopy for elucidating basic features of liquids.
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| 6. |
- Guo, JH, et al.
(författare)
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Spectroscopic study of CNx films grown by magnetron sputter deposition
- 1999
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Ingår i: JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA. - : ELSEVIER SCIENCE BV. - 0368-2048. ; 103, s. 551-554
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The electronic structure of carbon nitride films has been studied using soft X-ray absorption and emission spectroscopy. Resonant N K-emission spectra show a strong dependence on excitation photon energies and the substrate temperatures, while C K-emissio
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| 7. |
- Guo, JH, et al.
(författare)
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The characterization of undulator radiation at MAXII using a soft X-ray fluorescence spectrometer
- 1999
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Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - : ELSEVIER SCIENCE BV. - 0168-9002. ; 431:1-2, s. 285-293
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- A grazing-incidence grating spectrometer has been used for the investigation of the undulator radiation from beamline 411 at MAX-lab. The direct detection of undulator light is expected to obtain the information of the quality of the undulator. Regular un
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| 8. |
- Hellgren, N., et al.
(författare)
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Nitrogen bonding structure in carbon nitride thin films studied by soft x-ray spectroscopy
- 2001
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 79:26, s. 4348-4350
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Tidskriftsartikel (refereegranskat)abstract
- Soft x-ray absorption (SXAS) and emission (SXES) spectroscopies were applied to study the nitrogen bonding structure in magnetron sputtered CNx thin films. By comparing with calculated spectra of N in different model systems, N in three main bonding environments can be identified: (i) C equivalent toN bonds, with a sharp SXAS peak at 399.5 eV, (ii) pyridine-like N (i.e., N bonded to two C atoms), with an x-ray absorption resonance at similar to 398.5 eV, and (iii) N substituted in graphite, possibly with one sp(3) carbon as a neighbor (SXAS energy similar to 401 eV). These bondings are present in all CNx films analyzed; however, as shown earlier, the relative intensities between the peaks may vary with the growth conditions. Differences in the coordination of the nearest or second nearest C neighbors only cause slight changes in the peak positions and spectrum shape.
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| 9. |
- Hjorvarsson, B, et al.
(författare)
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Probing the local electronic structure in the H induced metal-insulator transition of Y
- 1999
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Ingår i: JOURNAL OF PHYSICS-CONDENSED MATTER. ; 11, s. L119-
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Tidskriftsartikel (refereegranskat)abstract
- The occupied acid unoccupied valence band states of yttrium (Y) metal, Y dihydride and Y trihydride were measured by soft x-ray emission and absorption spectroscopy. The experiments were complemented by first principles calculations. Both experiments and
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| 10. |
- Ma, YJ, et al.
(författare)
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Structural and electronic properties of low dielectric constant fluorinated amorphous carbon films
- 1998
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Ingår i: APPLIED PHYSICS LETTERS. - : AMER INST PHYSICS. - 0003-6951. ; 72:25, s. 3353-3355
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Fluorinated amorphous carbon (a-CFx) films were studied by high-resolution x-ray absorption, emission, and photoelectron spectroscopy. The composition and local bonding information were obtained and correlated with substrate temperature during deposition.
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