Zobrazeno 1 - 10
of 54
pro vyhledávání: '"T. Frello"'
Anisotropic dynamical scaling in a weakly 3D system: The case of oxygen ordering in YBa 2 Cu 3 O 6.5
Autor:
Th. Wolf, Mikael Käll, Jan Madsen, J. R. Schneider, Niels Hessel Andersen, M. v. Zimmermann, T. Frello, Henning Friis Poulsen
Publikováno v:
Europhysics Letters (EPL). 51:447-453
The coarsening of anisotropic oxygen superstructure domains of the Ortho-II type in YBa2Cu3O6.5 has been investigated by high-energy X-ray and neutron diffraction. The time dependence of the scattering function S(q,t) was probed after quenches throug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c416b42adf0f1ac7887baed8814461a1
https://doi.org/10.1209/epl/i2000-00514-3
https://doi.org/10.1209/epl/i2000-00514-3
Oxygen-ordering superstructures inNdBa2Cu3O6.5single crystals investigated by hard-x-ray diffraction
Autor:
Niels Hessel Andersen, Jan Madsen, J. R. Schneider, Martin v. Zimmermann, T. Frello, Th. Wolf, T. Niemöller, Asger Bech Abrahamsen
Publikováno v:
Physical Review B. 61:R9253-R9256
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89181f7ab9a9e7c6e3306dd755481d04
https://doi.org/10.1103/physrevb.61.r9253
https://doi.org/10.1103/physrevb.61.r9253
Autor:
Noriya Ichikawa, T. Frello, H. Huennefeld, S. Uchida, T. Niemoeller, John M. Tranquada, Niels Hessel Andersen, J. R. Schneider
Publikováno v:
The European Physical Journal B. 12:509-513
Superstructure reflections due to the ordering of holes into stripes in La_(1.45)Nd_(0.4)Sr_(0.15)CuO_4 have been studied with high energy x-ray diffraction. These reflections have been observed clearly for the first time in a sample which is superco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c61f16628fe6fd5008a1231a6b5af379
https://doi.org/10.1007/s100510051032
https://doi.org/10.1007/s100510051032
Publikováno v:
Technical University of Denmark Orbit
The phase transformations taking place during cooling of BSCCO/Ag tapes have been investigated by means of high energy X-ray diffraction at a synchrotron source. This technique allows in-situ measurements of the concentration changes of the major str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ca393c0b848c084ec2fc22c12203891
https://doi.org/10.1109/77.785057
https://doi.org/10.1109/77.785057
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:2304-2307
The increase of critical magnetization current due to pinning of magnetic flux lines in Y-Ba-Cu-O superconductors has been investigated. The methods utilized were either irradiation by fast neutrons or addition of yttria inclusions prior to processin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57c49e60fb6f852e28572bdecebbd59d
https://doi.org/10.1109/77.784931
https://doi.org/10.1109/77.784931
Autor:
T. Frello, Pinder Dosanjh, Dan Mønster, M. von Zimmermann, Jan Madsen, Ruixing Liang, Walter Hardy, Per-Anker Lindgård, Th. Wolf, O. Schmidt, T. Niemöller, J. R. Schneider, Mikael Käll, Niels Hessel Andersen, Henning Friis Poulsen
Publikováno v:
Physica C: Superconductivity. :259-269
The structural ordering properties of oxygen in YBa2Cu3O6+x have been studied by neutron and high-energy synchrotron X-ray diffraction and by computer simulations based on an extension of the Asymmetric Next Nearest Neighbour Interaction (ASYNNNI) mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6384c2ffbc0a2a3d6a0879b882bd821e
https://doi.org/10.1016/s0921-4534(99)00066-0
https://doi.org/10.1016/s0921-4534(99)00066-0
Autor:
T. Frello, Niels Hessel Andersen, Asger Bech Abrahamsen, S Prantontep, L Gottschalck Andersen, M.D. Bentzon, S. Garbe, Henning Friis Poulsen, M. von Zimmermann, Jan Madsen
Publikováno v:
Physica C: Superconductivity. 315:254-262
Structural changes during the annealing of a mono-filament BiSCCO/Ag tape in air are monitored in situ by synchrotron X-ray diffraction. Starting at 750°C, a very slow ramp rate is used, followed by high temperature cycling to study equilibrium phen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce1727d754db565843d7822fdbd6092b
https://doi.org/10.1016/s0921-4534(99)00217-8
https://doi.org/10.1016/s0921-4534(99)00217-8
Autor:
M. Baziljevich, T. Frello, Niels Hessel Andersen, Th. Wolf, M. R. Koblischka, Tom H. Johansen
Publikováno v:
Physical Review B. 59:R6639-R6642
Magnetic flux turbulence was observed in single crystals of ${\mathrm{NdBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{6+x}$ near-optimally doped $(x\ensuremath{\approx}1)$ and underdoped ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{6+x}$ $(x=0.50,0.82)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0625b0251e2b6fc01ceb6c24e69b80df
https://doi.org/10.1103/physrevb.59.r6639
https://doi.org/10.1103/physrevb.59.r6639
Autor:
S. Uhlenbruck, T. Frello, Niels Hessel Andersen, T. Niemöller, A. Revcolevschi, Patrick Berthet, Bernd Büchner, A. M. de Leon-Guevara, M. von Zimmermann, L. Pinsard, J. R. Schneider, O. Friedt
Publikováno v:
The European Physical Journal B. 8:5-8
Superstructure reflections due to charge ordering have been observed in single crystals using X-ray diffraction. The critical temperatures for the ordering process are 150 K and 180 K in samples with Sr concentrations of and , respectively. For x =0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1464b70e4304700a2ca32efe7e63f35a
https://doi.org/10.1007/s100510050662
https://doi.org/10.1007/s100510050662
Autor:
Thomas Wolf, Satoru Koishikawa, M. Baziljevich, Masato Murakami, Michael Rudolf Koblischka, Tom H. Johansen, T. Frello
Publikováno v:
Journal of Low Temperature Physics. 117:1483-1487
Instabilities of the critical state are observed in various NdBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystals by means of direct magneto-optic (MO) imaging while warming up flux states containing vortices of opposite polarity. Using the same
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fff3edd997b625a9c9691b984b0224f4
https://doi.org/10.1023/a:1022518406132
https://doi.org/10.1023/a:1022518406132