Zobrazeno 1 - 10
of 59
pro vyhledávání: '"K. Widder"'
Autor:
K. Widder, Hans Peter Geserich, D. Berner, Markus Schwoerer, Victor M. Burlakov, J. Gmeiner, G. Scheiber
The broad band spectrum of the optical conductivity of the quasi-one dimensional organic conductor (FA) 2 PF 6 (FA = fluoranthene) has been investigated in a wide temperature range including the Peierls transition temperature T p = 180 K. A semicondu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2972e7d5219915541b7fb42fae395b9
https://ora.ox.ac.uk/objects/uuid:cd188aef-4351-4fef-8264-cf10b95b1f2e
https://ora.ox.ac.uk/objects/uuid:cd188aef-4351-4fef-8264-cf10b95b1f2e
Autor:
Victor M. Burlakov, K. Widder, R. Becker, Hans Peter Geserich, Claus F. Klingshirn, J. Geerk, A. Dinger, J. Münzel, D. Lüerßen, M. Göppert, German Müller-Vogt, Marion Kläser
We present optical measurements of the tetragonal phase of YBCO. The measurements give strong evidence that the doping for low oxygen content is driven by the clustering of oxygen atoms in the chain plane, giving rise to metallic islands with local o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05e1431173615ed897630004638dd522
https://doi.org/10.1016/s0921-4534(98)00117-8
https://doi.org/10.1016/s0921-4534(98)00117-8
Publikováno v:
The European Physical Journal B. 6:323-328
We have measured the dispersion of plasmon excitations in polycrystalline Sn, Pb, Cd and Zn using electron energy-loss spectroscopy (EELS) in transmission. These metals show a remarkable deviation of their plasmon behaviour from standard theoretical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7ba034fde35edbae8d2922ea1b3b6d0
https://doi.org/10.1007/s100510050556
https://doi.org/10.1007/s100510050556
Autor:
R Roesky, A Meerschaut, Victor M. Burlakov, D. Berner, H Leihenseder, K. Widder, Hans Peter Geserich, V. N. Denisov, B. N. Mavrin, P Gressier
Publikováno v:
Journal of Physics: Condensed Matter. 9:10545-10553
We report on the polarized IR and Raman study of the misfit layer compound . The obtained data were compared with those obtained on the parent layer compounds LaSe and . On an assumption of a charge transfer of 1.14 electrons per formula unit from th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35740c85955da77f4acb4385ab997979
https://doi.org/10.1088/0953-8984/9/47/021
https://doi.org/10.1088/0953-8984/9/47/021
Publikováno v:
Physical Review B. 56:10154-10160
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c32e25dc27bab75bdb2f8e82ef2566b6
https://doi.org/10.1103/physrevb.56.10154
https://doi.org/10.1103/physrevb.56.10154
Publikováno v:
Journal of Low Temperature Physics. 105:1659-1664
The dielectric function of the quarternary superconductor YNi2B2C has been derived in an energy range from WmeV up to 50eV by linking together optical reflectance and electron energy loss measurements, obtained from polycrystalline samples at room te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dabe5e39f84fdf61dbb06f46bd35f2dd
https://doi.org/10.1007/bf00753938
https://doi.org/10.1007/bf00753938
Autor:
D. Berner, German Müller-Vogt, K. Widder, Hans Peter Geserich, Marion Kläser, J. Münzel, Th. Wolf
Publikováno v:
Physica C: Superconductivity. 267:254-260
We have performed polarized reflection measurements on the (001) plane of various single domain crystals of Y1−zCazBa2Cu3Ox with different Ca and oxygen content. Using the in-plane anisotropy of the optical properties, we could separate the contrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46b67729da8f0608f72922a1f82df279
https://doi.org/10.1016/0921-4534(96)00375-9
https://doi.org/10.1016/0921-4534(96)00375-9
Autor:
D. Berner, K. Widder, Hans F. Braun, Andreas Erb, M. Merz, René Flükiger, J. Münzel, W. Widder, Hans Peter Geserich
Publikováno v:
Physica C: Superconductivity. 264:11-18
We have determined the polarized reflectance spectra of the (001) plane of different single-domain Y 1− z Pr z Ba 2 Cu 3 O 7−δ crystals, grown in a non-corrosive BaZrO 3 crucible. Separating the conductivity of the CuO chains and CuO layer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afdbcdded962747078413918e6d9d677
https://doi.org/10.1016/0921-4534(96)00197-9
https://doi.org/10.1016/0921-4534(96)00197-9
Autor:
V. N. Denisov, D. Berner, J. Gmeiner, G. Scheiber, H. P. Geserich, B. N. Mavrin, K. Widder, M. Schwoerer, V. M. Burlakov
Publikováno v:
Ferroelectrics. 176:321-328
The broad band spectrum of optical conductivity of the quasi one-dimensional organic conductor (FA)2PF6 has been investigated in a wide temperature range including the Peierls transition temperature Tp = 180 K. The semiconducting gap value has been o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32e0eb2fa924e79b696e5e4f3a15bab4
https://doi.org/10.1080/00150199608223619
https://doi.org/10.1080/00150199608223619
Autor:
Hans F. Braun, L. Bauernfeind, Michael Rübhausen, H.P. Geserich, N. Dieckmann, W. Widder, K. Widder, A. Bock, M. Stebani
Publikováno v:
Physica C: Superconductivity. 256:168-176
(Y 1− x Pr x )Ba 2 Cu 3− z Al z O 7−δ (0 ≤ x ≤ 1) single crystals of large surface area (up to 9 × 8 mm 2 ) and thickness between 0.3 and 1.5 mm were grown in Al 2 O 3 crucibles using a self-flux method. The crystals were characterized by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc35c07876ca329b8daf921d4a1ece30
https://doi.org/10.1016/0921-4534(95)00636-2
https://doi.org/10.1016/0921-4534(95)00636-2