Zobrazeno 1 - 10
of 62
pro vyhledávání: '"L.W. Roeland"'
Autor:
M.J.V. Menken, J.J.M. Franse, P.H. Kes, A.A. Menovsky, L.W. Roeland, Kazuo Kadowaki, F.R. de Boer, J.N. Li
Publikováno v:
Physica C: Superconductivity. 169:81-86
Magnetization measurements have been performed on samples composed of oriented YBa 2 Cu 3 O 7 single crystals 1.4 K, 68 K and 78 K in magnetic fields up to 38 T applied along the c -axis and within the ab -plane. The critical currents are deduced fro
Publikováno v:
Journal of Physics F: Metal Physics, 16(12), 2045-2052. Institute of Physics
De-Haas-van Alphen (DHVA) frequencies corresponding to the neck orbits of a majority-spin Fermi surface have been observed over a wide range of orientations in the ferromagnetic FCC alloy Co0.92Fe0.08. Self-consistent band-structure calculations can
Publikováno v:
Physica B: Condensed Matter. 155:10-17
Two constraints on semi-continuous magnet coils are the strength of the winding material, and the maximum power which the rectifier must deliver for a short time. Here we assume that for a 60-T coil wire of sufficient strength (about 100 kg/mm2 is av
Autor:
L.W. Roeland, F.A. Muller
Publikováno v:
Journal of Magnetism and Magnetic Materials. 8:206-209
The zero-field moment of Tb has been determined at 4.2 K for a very pure single crystal along the b direction. A value of (9.490 ± 0.010) μ B /at was found. The corresponding conduction electron polarization of 0.519 μ B /at is much higher than pr
Publikováno v:
Journal of Physics F: Metal Physics. 5:L233-L237
The zero field moment of Gd has been measured at 4.2K for a single crystal prepared by solid state electrotransport. It is magnetically very soft: the moment is (7.630+or-0.010) mu B per atom in the b direction and is slightly smaller in the c direct
Publikováno v:
Journal of Physics F: Metal Physics. 4:2264-2268
High field (30 MA m-1) magnetization measurement at 4.2K and 20.4K on samarium single crystals are reported together with low field studies from 1.8K to 130K. The susceptibility results are analyzed in terms of independent contributions from the mome
Autor:
J.J.M. Franse, J.Q.A. Koster, Yingkai Huang, F.R. de Boer, A.A. Menovsky, Kazuo Kadowaki, J.C.P. Klaasse, M. van Sprang, L.W. Roeland, H.P. van der Meulen
Publikováno v:
Physica B+C. 145:260-266
Specific heat, ac-resistance, ac- and dc-susceptibilities and high-field magnetization have been measured on one of the 90 K-class high-Tc superconductors: GdBa2Cu3O7. No significant influence was observed of the Gd magnetic moments on the supercondu
Autor:
C. J. van der Beek, J. van den Berg, Kazuo Kadowaki, Li Jiang-Ning, Huang Ying-kai, P.H. Kes, L.W. Roeland, F.R. de Boer, M.J.V. Menken, A.A. Menovsky
Publikováno v:
Physica B: Condensed Matter. 155:136-139
A sample of YBa 2 Cu 3 O 7 was constructed by stacking a number of small single crystals. Magnetization measurements were made in magnetic fields up to 38 T, both parallel to the c -axis and to the basal plane. At 1.4, 4.2 and 20.4 K, a large irrever
Autor:
L.W. Roeland, H.W. Myron, A.J. Arko, J. C. Wolfrat, F.M. Mueller, A.T. Van Kessel, D.H. Lowndes, G.W. Webb, F.A. Muller
Publikováno v:
Le Journal de Physique Colloques. 39:C6-1385
The Fermi surface of Nb/sub 3/Sn has been derived from an APW band calculation. de Haas-van Alphen (dHvA) oscillations have been observed in Nb/sub 3/Sn and V/sub 3/Si which give a consistent FS description. Using single crystals of high resistance r
Publikováno v:
Le Journal de Physique Colloques. 39:C6-412