Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Braun, Hans. F."'
Autor:
Papageorgiou, Thomas P., Casini, Ennio, Braun, Hans F., Herrmannsdörfer, Thomas, Bianchi, Andrea D., Wosnitza, Joachim
Publikováno v:
European Physical Journal B 52, 383 (2006)
Magnetic-field changes $<$ 0.2 Oe over the scan length in magnetometers that necessitate sample movement are enough to create artifacts in the dc magnetization measurements of the weakly ferromagnetic superconductor RuSr$_{2}$GdCu$_{2}$O$_{8}$ (Ru121
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511323
Autor:
Papageorgiou, Thomas P., Braun, Hans F., Goerlach, Tobias, Uhlarz, Marc, Loehneysen, Hilbert v.
Publikováno v:
Phys. Rev. B 68, 144518 (2003)
Whereas resistivity and ac susceptibility measurements on the magnetic (Tm ~ 130 K) superconductor (Tc,onset ~ 50 K) RuSr2GdCu2O8 (Ru-1212Gd) reported by different research groups reveal a universal behavior in its superconducting state, this is not
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304263
Publikováno v:
J. Low Temp. Phys., 131 (2003) 129
Inhomogeneities of the field in the superconducting magnet of a superconducting quantum intereference device (SQUID) magnetometer can create serious artefacts in the d.c. magnetization measurements of superconducting samples. We discuss the problem f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0211410
Publikováno v:
Phys. Rev. B, 66 (2002) 104509
For polycrystalline RuSr2GdCu2O8 (Ru-1212), distinct peaks have been reported in d.c. magnetization in the superconducting state of the sample. Sr2GdRuO6 (Sr-2116), the precursor for the preparation of Ru-1212, shows similar peaks in the same tempera
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205463
Autor:
Papageorgiou, Thomas P., Herrmannsdoerfer, Thomas, Dinnebier, Robert, Mai, Timo, Ernst, Tobias, Wunschel, Markus, Braun, Hans F.
Publikováno v:
Physica C, 377 (2002) 383
d.c. magnetization measurements performed on a polycrystalline sample of RuSr2GdCu2O8 (Ru-1212) showed distinct peaks of the magnetization upon entering the superconducting state. Since Sr2GdRuO6 (Sr-2116) is the precursor for the preparation of Ru-1
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205462
Compacted platinum powders exhibit a sharp onset of diamagnetic screening at $T \simeq 1.9$ mK in zero magnetic field in all samples investigated. This sharp onset is interpreted in terms of the intragranular transition into the superconducting state
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009434
We investigated the low-temperature properties of polycrystalline HoNi_2^11B_2C by means of ac-susceptibility and neutron powder diffraction in the temperature range of 1.5 to 10 K and zero magnetic field. A sample with pronounced re-entrant behaviou
Externí odkaz:
http://arxiv.org/abs/cond-mat/9906328
Publikováno v:
In Physica C: Superconductivity and its applications 1 September 2007 460-462 Part 1:401-402
Autor:
Schindler, Alexander, König, Reinhard, Herrmannsdörfer, Thomas, Braun, Hans F. *, Eska, Georg, Günther, Detlef, Meissner, Michael, Mertig, Michael, Wahl, Reiner, Pompe, Wolfgang
Publikováno v:
In Physica B: Physics of Condensed Matter 2003 329 Part 2:1427-1428
Publikováno v:
In Physica B: Physics of Condensed Matter 2003 329 Part 2:1336-1337