Zobrazeno 1 - 10
of 903
pro vyhledávání: '"Reichardt W"'
Autor:
Weber, F., Pintschovius, L., Reichardt, W., Heid, R., Bohnen, K. -P., Kreyssig, A., Reznik, D., Hradil, K.
Publikováno v:
Weber, F., et al., Physical Review B 89(10), 104503 (2014)
We present a combined density-functional-perturbation-theory and inelastic neutron scattering study of the lattice dynamical properties of YNi2B2C. In general, very good agreement was found between theory and experiment for both phonon energies and l
Externí odkaz:
http://arxiv.org/abs/1404.0526
Autor:
Weber, F., Rosenkranz, S., Pintschovius, L., Castellan, J. -P., Osborn, R., Reichardt, W., Heid, R., Bohnen, K. -P., Goremychkin, E. A., Kreyssig, A., Hradil, K., Abernathy, D. L.
We report an inelastic neutron scattering investigation of phonons with energies up to 159 meV in the conventional superconductor YNi$_2$B$_2$C. Using the SWEEP mode, a newly developed time-of-flight technique involving the continuous rotation of a s
Externí odkaz:
http://arxiv.org/abs/1207.0607
Autor:
Weber, F., Kreyssig, A., Pintschovius, L., Heid, R., Reichardt, W., Reznik, D., Stockert, O., Hradil, K.
We show that the superconducting energy gap $\Delta$ can be directly observed in phonon spectra, as predicted by recent theories. In addition, since each phonon probes the gap on only a small part of the Fermi surface, the gap anisotropy can be studi
Externí odkaz:
http://arxiv.org/abs/0810.5093
Publikováno v:
Phys. Rev. B 76, 014505 (2007)
The lattice dynamics in Sr$_2$RuO$_4$ has been studied by inelastic neutron scattering combined with shell-model calculations. The in-plane bond-stretching modes in Sr$_2$RuO$_4$ exhibit a normal dispersion in contrast to all electronically doped per
Externí odkaz:
http://arxiv.org/abs/cond-mat/0702293
Autor:
Reznik, D., Reichardt, W.
Publikováno v:
Phys. Rev. B 71, 092301 (2005)
Longitudinal optical phonons with oxygen character were measured in La_0.7Sr_0.3MnO_3 by inelastic neutron scattering in the (1 0 0) cubic direction and results were compared with shell model predictions. Measurements were performed in several Brillo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503575
Autor:
Reznik, D., Reichardt, W.
Temperature dependence of longitudinal optical phonons with oxygen character was measured in La1-xSrxMnO3 (x=0.2, 0.3) by inelastic neutron scattering in the (1 0 0) cubic direction. The zone center mode intensity is consistent with the Debye-Waller
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312368
Autor:
Gardiner, C. H., Boothroyd, A. T., Larsen, B. H., Reichardt, W., Zhokhov, A. A., Andersen, N. H., Lister, S. J. S., Wildes, A. R.
Publikováno v:
Physical Review B, 69, 092302 (2004)
We report measurements of the phonon dispersion relations in non-superconducting, oxygen-deficient PrBa2Cu3O6+x (x ~ 0.2) by inelastic neutron scattering. The data are compared with a model of the lattice dynamics based on a common interaction potent
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310555
Autor:
Pintschovius, L., Reznik, D., Reichardt, W., Endoh, Y., Hiraka, H., Tranquada, J. M., Uchiyama, H., Masui, T., Tajima, S.
Publikováno v:
Phys. Rev. B 69, 214506 (2004)
We report results of inelastic neutron scattering measurements of phonon dispersions in optimally doped YBa2Cu3O6.95 and compare them with model calculations. The focus is on the in-plane oxygen bond-stretching phonon branches. The study of these mod
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310183
Autor:
Pintschovius, L., Endoh, Y., Reznik, D., Hiraka, H., Tranquada, J. M., Reichardt, W., Uchiyama, H., Masui, T., Tajima, S.
Inelastic neutron scattering investigations on optimally doped YBCO revealed a very pronounced temperature dependence in the Cu-O in-plane bond-stretching vibrations along the (010) direction: a shift of spectral weight by at least 10 meV has been ob
Externí odkaz:
http://arxiv.org/abs/cond-mat/0308357