645 citations · 3.4k across the 50 of their papers we have counts for
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Thoughts about boosting superconductivity
Dirk van der Marel
In a superconductor electrons form pairs despite the Coulomb repulsion as a result of an effective attractive interaction mediated by, for example phonons. In the present paper DeG…
Multiband superconductivity due to the electron - LO-phonon interaction in strontium titanate and on a SrTiO3/LaAlO3 interface
S. N. Klimin, J. Tempere, J. T. Devreese +1
In strontium titanate, the Froehlich electron - LO-phonon interaction dominates the electron response and can also provide superconductivity. Because of high LO-phonon frequencies…
BCS superconductivity near the band edge: Exact results for one and several bands
D. Valentinis, D. van der Marel, C. Berthod
We revisit the problem of a BCS superconductor in the regime where the Fermi energy is smaller than the Debye energy. This regime is relevant for low-density superconductors such a…
The fate of quasiparticles in the superconducting state
S. V. Dordevic, D. van der Marel, C. C. Homes
Quasiparticle properties in the superconducting state are masked by the superfluid and are not directly accessible to infrared spectroscopy. We show how one can use a Kramers--Kron…
Interface superconductivity in LaAlO-SrTiO heterostructures
S. N. Klimin, J. Tempere, J. T. Devreese +1
The interface superconductivity in LaAlO-SrTiO heterostructures reveals a non-monotonic behavior of the critical temperature as a function of the two-dimensional densit…
Evidence for a Fermi liquid in the pseudogap phase of high-Tc cuprates
S. I. Mirzaei, D. Stricker, J. N. Hancock +9
Cuprate high-T_c superconductors on the Mott-insulating side of "optimal doping" (with respect to the highest T_c's) exhibit enigmatic behavior in the non-superconducting state. Ne…
Disentangling the electronic and phononic glue in a high-Tc superconductor
Stefano Dal Conte, Claudio Giannetti, Giacomo Coslovich +10
Unveiling the nature of the bosonic excitations that mediate the formation of Cooper pairs is a key issue for understanding unconventional superconductivity. A fundamen- tal step t…
Seebeck effect in Fe1+xTe1-ySey single crystals
I. Pallecchi, G. Lamura, M. Tropeano +4
We present measurements of resistivity and thermopower of Fe1+xTe1-ySey single crystalline samples with y=0, 0.1, 0.2, 0.3 and 0.45 in zero field and in a magnetic field B=8T. We p…
Optical properties and electronic structure of ZrB
J. Teyssier, A. B. Kuzmenko, D. van der Marel +4
We report optical (6 meV - 4 eV) properties of a boride superconductor ZrB ( = 6 K) in the normal state from 20 to 300 K measured on high-quality single crystals by a c…
Comment on ''Phase Diagram of LaSrCuO Probed in the Infrared: Imprints of Charge Stripe Excitations''
S. Tajima, S. Uchida, D. van der Marel +1
Recently Lucarelli {\it et al.} have reported\cite{lucarelli} temperature-dependence of the in-plane optical reflectivity of LaSrCuO over a wide doping range, focus…
Two-gap superconductivity in MgB: clean or dirty?
I. I. Mazin, O. K. Andersen, O. Jepsen +5
A large number of experimental facts and theoretical arguments favor a two-gap model for superconductivity in MgB. However, this model predicts strong suppression of the crit…
Manifestation of multiband optical properties of MgB
A. B. Kuz'menko, F. P. Mena, H. J. A. Molegraaf +8
The optical conductivity of MgB has been determined on a dense polycrystalline sample in the spectral range 6 meV - 4.6 eV using a combination of ellipsometric and normal incid…
Effects of Vortex Pinning and Thermal Fluctuations on the Josephson Plasma Resonance in Tl2Ba2CaCu2O8 and YBa2Cu3O6.5
Diana Dulic, J. Hak, D. van der Marel +5
Infrared spectroscopy has been used to investigate the temperature dependence and c-axis magnetic field dependence of the Josephson plasma resonance in optimally doped Tl2Ba2CaCu2O…
Observation of the Transverse Optical Plasmon in SmLa0.8Sr0.2CuO4-d
D. Dulic, A. Pimenov, D. van der Marel +9
We present microwave and infrared measurements on SmLa0.8Sr0.2CuO4-d, which are direct evidence for the existence of a transverse optical plasma mode, observed as a peak in the c-a…
C-axis Penetration Depth and Inter-layer Conductivity in the Thallium Based Cuprate Superconductors
D. Dulic, D. van der Marel, A. A. Tsvetkov +4
The c-axis Josephson plasmon in optimally doped single-layer and bi-layer high Tc cuprates Tl2201 and Tl2212 have been investigated using infrared spectroscopy. We observed the pla…