117 citations · 446 across the 12 of their papers we have counts for
12 papers
Temperature-dependent ellipsometry measurements of partial Coulomb energy in superconducting cuprates
J. Levallois, M. K. Tran, D. Pouliot +8
We performed an experimental study of the temperature and doping dependence of the energy-loss function of the bilayer and trilayer Bi-cuprate family. The primary aim is to obtain…
Superconductivity-Induced Transfer of In-Plane Spectral Weight in Bi2Sr2CaCu2O8: Resolving a Controversy
A. B. Kuzmenko, H. J. A. Molegraaf, F. Carbone +1
We present a detailed analysis of the superconductivity-induced redistribution of optical spectral weight in Bi2Sr2CaCu2O8 near optimal doping. It confirms the previous conclusion…
Ferromagnetism makes a doped semiconductor less shiny
F. P. Mena, J. F. DiTusa, D. van der Marel +5
Magnetic semiconductors have attracted interest because of the question of how a magnetic metal can be derived from a paramagnetic insulator. Here our approach is to carrier dope i…
Superconductivity by Kinetic Energy Saving?
D. van der Marel, H. J. A. Molegraaf, C. Presura +1
A brief introduction is given in the generic microscopic framework of superconductivity. The consequences for the temperature dependence of the kinetic energy, and the correlation…
Optical signatures of electron correlations in the cuprates
D. van der Marel
The f-sum rule is introduced and its applications to electronic and vibrational modes are discussed. A related integral over the intra-band part of sigma(omega) which is also valid…
Charge ordering signatures in the optical properties of beta-Na0.33V2O5
C. Presura, M. Popinciuc, P. H. M. van Loosdrecht +4
Temperature dependent optical spectra are reported for beta-Na0.33V2O5. The sodium ordering transition at T_Na = 240 K, and in particular the charge ordering transition at T_MI = 1…
Optical properties of NaxV2O5
M. J. Konstantinovic, Z. V. Popovic, V. V. Moshchalkov +4
The optical properties of sodium-deficient NaxV2O5 (0.85 < x <1) single crystals are analyzed in the wide energy range, from 0.012 to 4.5 eV, using ellipsometry, infrared reflectiv…
Optical properties and electronic structure of Ca-doped alpha'-NaV2O5
C. Presura, D. van der Marel, M. Dischner +2
The dielectric function of alpha'-Na(1-x)Ca(x)V2O5 (0 < x < 20%) was measured for the a and b axes in the photon energy range 0.8-4.5 eV at room temperature. By varying the Ca-conc…
Extensive infrared spectroscopic study of CuO: signatures of strong spin-phonon interaction and structural distortion
A. B. Kuz'menko, D. van der Marel, P. J. M. van Bentum +3
Optical properties of single-crystal monoclinic CuO in the range 70 - 6000 \cm were studied at temperatures from 7 to 300 K. Normal reflection spectra were obtained from the (001)…
Low temperature ellipsometry of NaV2O5
C. Presura, D. van der Marel, A. Damascelli +1
The dielectric function of alpha'NaV2O5 was measured with electric field along the a and b axes in the photon energy range 0.8-4.5 eV for temperatures down to 4K. We observe a pron…
Optical spectroscopic study of the interplay of spin and charge in NaV2O5
A. Damascelli, C. Presura, D. van der Marel +2
We investigate the temperature dependent optical properties of NaV2O5, in the energy range 4meV-4eV. The symmetry of the system is discussed on the basis of infrared phonon spectra…
Charged Magnons in NaV2O5
A. Damascelli, D. van der Marel, M. Grueninger +4
We investigated the temperature-dependent optical conductivity of NaV2O5 in the energy range 4 meV-4 eV. The intensities and the polarization dependence of the detected electronic…