T. Pichler

Detailed analysis of the mean diameter and diameter distribution of single-wall carbonnanotubes from their optical response

We report a detailed analysis of the optical properties of single-wall carbon nanotubes (SWCNTs) with different mean diameters as produced by laser ablation. From a combined study of optical absorption, high-resolution electron energy-loss spectroscopy in transmission, and tight-binding calculations we were able to accurately determine the mean diameter and diameter distribution in bulk SWCNT samples. In general, the absorption response can be well described assuming a Gaussian distribution of nanotube diameters and the predicted inverse proportionality between the nanotube diameter and the energy of the absorption features. A detailed simulation enabled not only a determination of the mean diameter of the nanotubes, but also gives insight into the chirality distribution of the nanotubes. The best agreement between the simulation and experiment is observed when only nanotubes within

The normal state Fermi surface of pristine and Pb-doped Bi2Sr2CaCu2O8+d from ARPES measurements and its photon energy independence

15\ifmmode^\circ\else\textdegree\fi{}

Vibrational analysis of IR reflection-transmission from single crystal C60

of the armchair axis are considered. The mean diameters and diameter distributions from the optical simulations are in very good agreement with the values derived from other bulk sensitive methods such as electron diffraction, x-ray diffraction, and Raman scattering.

Incidence of the Tomonaga-Luttinger liquid state on the NMR spin-lattice relaxation in carbon nanotubes

We address the question as to whether the topology of the normal-state Fermi surface of

Equilibrium phases in alkali metal doped C60 films and single crystals from in situ IR-reflectivity

{\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{2}{\mathrm{O}}_{8+\ensuremath{\delta}}

Determination of the filling factor of C60 peapods by electron energy-loss spectroscopy in transmission

---as seen in angle-resolved photoemission---depends on the photon energy used to measure it. High-resolution photoemission spectra and Fermi-surface maps from pristine and Pb-doped

Temperature- and Doping-Induced Phase Transitions in C60

{\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}{\mathrm{CaCu}}_{2}{\mathrm{O}}_{8+\ensuremath{\delta}}

Concentration of C60 Molecules in SWCNT

are presented, recorded using both polarized and unpolarized radiation of differing energies. The data show clearly that no main band crosses the Fermi surface along the

Photoselective resonance Raman scattering in C60 peapods

\ensuremath{\Gamma}\overline{M}Z

Charge transfer in intercalated C60 peapods

direction in reciprocal space, even for a photon energy of 32 eV, thus ruling out the existence of a \ensuremath{\Gamma}-centered, electronlike Fermi surface in this archetypal high-