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pro vyhledávání: '"M. Leghissa"'
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Publikováno v:
IEEE Transactions on Appiled Superconductivity. 11:2788-2791
The transport properties of superconducting interconnections in multifilamentary Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub 10//Ag-alloy tapes are analyzed. A simple experimental procedure is developed to assess the interconnections in a direct and qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::277ddd3e1186633619d9d8b2767acb36
https://doi.org/10.1109/77.919642
https://doi.org/10.1109/77.919642
Autor:
Werner Hanke, G. Saemann-Ischenko, M. Leghissa, Ernst Helmut Brandt, R.E. Hetzel, T. J. Hagenaars
Publikováno v:
Physical Review B. 55:11706-11713
We study the vortex-line lattice and liquid phases of a clean type-II superconductor by means of Monte Carlo simulations of the lattice London model. Motivated by a recent controversy regarding the presence, within this model, of a vortex-liquid regi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::678f517ceffbb5734e694f7327ff96cb
https://doi.org/10.1103/physrevb.55.11706
https://doi.org/10.1103/physrevb.55.11706
Autor:
H.-W. Neumüller, J. Wiesner, G. Wirth, G. Ries, M. Kraus, P. Kummeth, G. Saemann-Ischenko, C. Struller, M. Leghissa
Publikováno v:
Journal of Superconductivity. 7:783-786
An excellent tool to enhance the critical current density in superconductors is the controlled introduction of defects by irradiation damage. Irradiation with 2.65 GeV Au ions provides the generation of amorphous line defects. Polycrystalline (Bi, Pb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97e41ca62cffe8be894cf95ef4b6cbf3
https://doi.org/10.1007/bf01320869
https://doi.org/10.1007/bf01320869
Autor:
R. Scholz, Peter Kummeth, B. Holzapfel, M. Leghissa, G. Saemann-Ischenko, L. Ya. Vinnikov, J. Daniel, M. Kraus, G. Kreiselmeyer
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 89:307-314
Since the discovery of superconductivity above liquid nitrogen temperature in copper oxide based compounds many experiments have been performed on the one hand to study their mixed state properties and on the other hand to check their technological a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b946f01e6b5409c6e5df42f900d239c9
https://doi.org/10.1016/0168-583x(94)95190-x
https://doi.org/10.1016/0168-583x(94)95190-x
Publikováno v:
Physik Journal. 50:333-338
Neben den hohen Sprungtemperaturen ist vor allem die schichtartige Struktur und die damit verbundene Anisotropie vieler Grosen ein herausragendes Merkmal der neuen Kuprat-Supraleiter. In Anwesenheit eines auseren Magnetfeldes — d. h. im sogenannten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd0832577dad7ebb13571c95d989783b
https://doi.org/10.1002/phbl.19940500409
https://doi.org/10.1002/phbl.19940500409
Publikováno v:
Physical Review B. 48:1341-1344
We report on the visualization of vortex patterns by means of the high-resolution Bitter-decoration technique in ${\mathrm{Bi}}_{2}$${\mathrm{Sr}}_{2}$${\mathrm{CaCu}}_{2}$${\mathrm{O}}_{8+\mathit{x}}$ single crystals containing columnar defects gene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02c6f63fd92eae567eea848b73314a41
https://doi.org/10.1103/physrevb.48.1341
https://doi.org/10.1103/physrevb.48.1341
Publikováno v:
Zeitschrift f�r Physik B Condensed Matter. 92:163-172
The nature of dissipative flux motion in epitaxial YBa2Cu3O7−δ thin films has been investigated by means of resistivity ϱ(T, B) and transport current-voltage characteristicsE(j, T, B) covering up to 5 orders of magnitude in voltage for a wide ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b72a215bc4692c9a33b405dd5d5ebc05
https://doi.org/10.1007/bf01312172
https://doi.org/10.1007/bf01312172
Autor:
G. Saemann-Ischenko, P. Schmitt, H.-W. Neumüller, Günter Ries, R. Busch, M. Leghissa, Peter Kummeth
Publikováno v:
Journal of Alloys and Compounds. 195:379-385
We investigated the voltage-current (V-I) characteristics in polycrystalline, melt textured and epitaxially grown Bi-2212 superconductors, in Bi-2223 melt textured Ag tapes and in Y-123 films. In all samples the V-I curves are well described by a pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b876754a4bbe122c3e5a13014fad886
https://doi.org/10.1016/0925-8388(93)90762-c
https://doi.org/10.1016/0925-8388(93)90762-c
Autor:
P. Schmitt, R. Hopfengärtner, G. Kreiselmeyer, M. Leghissa, B. Holzapfel, G. Saemann-Ischenko
Publikováno v:
Physical Review B. 47:5992-6003
The Hall effect of epitaxial YBa 2 Cu 3 O 7-x (T c ≃90 K) and Bi 2 Sr 2 CaCu 2 O y (T c ≃80 K) films has been investigated. In both compounds the Hall coefficients R H (B∥c axis) in the normal phase is positive and exhibits a strong temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cba3c54afb061365fdba4ec01af320e
https://doi.org/10.1103/physrevb.47.5992
https://doi.org/10.1103/physrevb.47.5992