Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Venturini, A."'
Autor:
L. Tassini, Andreas Erb, László Forró, Andreas Baum, Helmuth Berger, Rudi Hackl, Nitin Chelwani, Francesca Venturini, Matthias Opel, T. Böhm
We present results from light scattering experiments on three insulating antiferromagnetic cuprates, YBa$_2$Cu$_3$O$_{6.05}$, Bi$_2$Sr$_2$YCu$_2$O$_{8+\delta}$, and La$_2$CuO$_4$ as a function of polarization and excitation energy {using samples of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::072d0c16d89cbf9e13e6647a48affc0b
https://hdl.handle.net/11475/2120
https://hdl.handle.net/11475/2120
Publikováno v:
Low Temperature Physics. 34:388-391
The dynamical structure factor of a two-dimensional electrons trapped to a helium film deposited on a solid substrate is determined through molecular dynamics simulations for different film thicknesses and two substrates. The phases of the system var
Autor:
Federica Venturini, Tien-Lin Lee, Jörg Zegenhagen, N. B. Brookes, Chengtian Lin, C. Aruta, B.C.C. Cowie, Sebastian Thiess
Publikováno v:
Physical Review B. 92
We analyzed the valence band (VB) of the 90 K high-temperature superconductor ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ by photoelectron spectroscopy under standing-wave excitation employing hard x rays. P
Autor:
Andreas Erb, L. Tassini, T. Fujita, Francesca Venturini, R. Hackl, N. Kikugawa, Ch. Hartinger
Publikováno v:
Journal of Physics and Chemistry of Solids. 67:289-293
We summarize results of light-scattering experiments in underdoped La 2− x Sr x CuO 4 (LSCO) and YBa 2 Cu 3 O 6+ x (Y-123) single crystals. Below a doping-dependent temperature close to the pseudogap cross-over line T *( p ) new peaks appear in the
Autor:
W.A. Ortiz, R. Caparroz, P.C. Venturini, Paulo Noronha Lisboa-Filho, C.C. de Faria, Sergei Sergeenkov, W. A. C. Passos, Fernando M. Araújo-Moreira
Publikováno v:
Physica C: Superconductivity. 354:189-196
This contribution presents a selected set of results, obtained as part of a systematic investigation, evidencing that many effects exhibited by superconductors are distinct manifestations of granularity which, in turn, is envisaged as a break of symm
Autor:
Andreas Erb, Matthias Opel, Eric Walker, Martin Götzinger, R. Nemetschek, R. Philipp, Rudi Hackl, C. Hoffmann, Francesca Venturini
Publikováno v:
Journal of Low Temperature Physics. 117:347-351
The authors present results of electronic Raman-scattering experiments in differently doped YBa{sub 2}Cu{sub 3}O{sub 6+x}. In B{sub 2g} symmetry, an analysis of the data in terms of a memory function approach is presented and dynamical relaxation rat
Autor:
R. G. Dunn, Nancy A. Missert, Eugene L. Venturini, R. R. Padilla, P. Newcomer Provencio, Bruno Morosin
Publikováno v:
Physica C: Superconductivity. 302:119-129
Large single crystals of the Tl–Ba–Ca–Cu–O superconductors have been grown from fluxes including up to 30 mol% Rb of the amount of Tl employed. Various phases have been grown with lattice parameters and superconducting properties similar to c
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :587-590
Lattice damage introduced in high-temperature superconducting Tl2Ba2CaCu2Oy thin films by irradiation with 60 MeV Cu9+ ions produces a large enhancement in both the critical current density Jcm and the vortex volume pinning force. These promising eff
Autor:
Francesca Venturini, Martin Greven, B. Muschler, Rudi Hackl, Andreas Erb, Yoichi Ando, L. Tassini, Hiroshi Eisaki, D. A. Bonn, Walter Hardy, Andrea Damascelli, Darren C. Peets, Shimpei Ono, N. Munnikes, W. Prestel, Ruixing Liang
Publikováno v:
Physical Review B. 84
We performed Raman scattering experiments on superconductivity-induced features in Bi2Sr2(Ca1−xYx)Cu2O8+δ (Bi-2212), YBa2Cu3O6+x (Y-123), and Tl2Ba2CuO6+δ (Tl-2201) single crystals. The results in combination with earlier ones enable us to system
Publikováno v:
Journal of Applied Physics. 73:7571-7574
The thickness dependence of electrodynamic properties of Tl2Ca2Ba2Cu3Ox films has been examined after correction for geometrical effects. The surface resistance increases for very thin or thick films as is consistent with the presence of a poorly sup