Zobrazeno 1 - 10
of 89
pro vyhledávání: '"D. Souptel"'
Autor:
N. Narayanan, P. J. Graham, P. Rovillain, J. O’Brien, J. Bertinshaw, S. Yick, J. Hester, A. Maljuk, D. Souptel, B. Büchner, D. Argyriou, C. Ulrich
Publikováno v:
Physical Review B. 105
Publikováno v:
Journal of Materials Science. 45:2223-2227
The effects of heat distribution, process parameters, and the ambient atmosphere on the characteristics of the molten zone are considered for floating zone (FZ) crystal growth of selected oxide compounds with special reference to cuprates. The outer
Autor:
Anke Köhler, Jens-Uwe Hoffmann, Dirk C. Meyer, Günter Behr, Tilmann Leisegang, Matthias Frontzek, Peter Paufler, Andreas Kreyssig, T. Weissbach, D. Souptel
Publikováno v:
Journal of Applied Crystallography. 41:738-746
A YNi2B2C single crystal containing traces of foreign phases was inspected by means of neutron and X-ray diffraction as well as scanning electron microscopy and X-ray spectroscopy methods. The diffraction patterns obtained from the experiments look s
Publikováno v:
Journal of Alloys and Compounds. 455:60-66
The effect of boron and carbon deviation from the stoichiometric composition on the crystallization behavior and superconducting properties of the HoNi2B2C compound was studied at polycrystalline HoNi2B2+xC and HoNi2B2C1+y samples. It was detected th
Publikováno v:
Journal of Crystal Growth. 307:410-420
Single crystal growth of intermetallic compounds from the melts is strongly affected by oxygen impurity. In the case of container-free crystal growth techniques there are three main sources for oxygen contamination: (1) oxygen contents in initial che
Publikováno v:
Journal of Magnetism and Magnetic Materials. 311:489-493
The thermal expansion α has been measured for single-crystalline HoNi2B2C in the range between 2 and 200 K . At low temperatures, α is dominated by magnetic contributions leading to a strongly anisotropic behaviour with different signs for the expa
Autor:
H. Bartolf, Wolfgang Löser, D. Souptel, Hilbert von Löhneysen, Christian Pfleiderer, Günter Behr, Oliver Stockert, S. Drotziger
Publikováno v:
Journal of Alloys and Compounds. :9-15
Rare-earth intermetallic alloys and compounds, in particular those with Ce or Yb, are often close to a magnetic instability. In particular, CeCu6−xAux has become a prototype heavy-fermion (HF) system where, starting from not magnetically ordered Ce
Publikováno v:
Journal of Crystal Growth. 276:652-662
Features characterizing the perfection of high-quality YNi 2 B 2 C, HoNi 2 B 2 C and TbNi 2 B 2 C single crystals grown by the floating zone technique with optical heating in the TSFZ regime are investigated. The grown crystals are crack free, single
Autor:
Eric Jobiliong, J. Hagel, G. Behr, D. Souptel, M. Jäckel, O. Ignatchik, J. Wosnitza, T. Coffey
Publikováno v:
Journal of Magnetism and Magnetic Materials. :424-427
We present de Haas–van Alphen (dHvA) measurements of different YNi 2 B 2 C single crystals in magnetic fields up to 32 T. At high magnetic fields three different dHvA frequencies could be detected. The lowest frequency, F α , could be well resolve
Publikováno v:
Journal of Crystal Growth. 275:e91-e95
Single crystals of HoNi 2 B 2 C, YNi 2 B 2 C and TbNi 2 B 2 C have been grown by a floating zone technique with optical heating. Crystals are crack free, show no traces of 2nd phases and are single crystalline in the whole volume with a neutron rocki