Zobrazeno 1 - 10
of 242
pro vyhledávání: '"Weyeneth, S"'
Autor:
Weyeneth, S.
The planar oxygen isotope effect coefficient measured as a function of hole doping in the Pr- and La-doped YBa2Cu3O7 (YBCO) and the Ni-doped La1.85Sr0.15CuO4 (LSCO) superconductors quantitatively and qualitatively follows the form originally proposed
Externí odkaz:
http://arxiv.org/abs/1704.06336
Autor:
Schneider, T., Weyeneth, S.
We perform a detailed finite-size scaling analysis of the sheet resistance in Bi-films and the LaAlO$_{3}$/SrTiO$_{3}$ interface in the presence and absence of a magnetic field applied perpendicular to the system. Our main aim is to explore the occur
Externí odkaz:
http://arxiv.org/abs/1407.1999
Autor:
Katrych, S., Pisoni, A., Bosma, S., Weyeneth, S., Zhigadlo, N. D., Gaal, R., Karpinski, J., Forró, L.
The synthesis, structural and physical properties of iron lanthanide oxypnictide superconductors, L4Fe2As2Te1-xO4 (L = Pr, Sm, Gd), with transition temperature at ~ 25 K are reported. Single crystals have been grown at high pressure using cubic anvil
Externí odkaz:
http://arxiv.org/abs/1311.5437
Autor:
Schneider, T., Weyeneth, S.
We explore the implications of Berezinskii-Kosterlitz-Thouless (BKT) critical behavior and variable-range hopping on the two dimensional (2D) quantum superconductor-insulator (QSI) transition driven by tuning the gate voltage. To illustrate the poten
Externí odkaz:
http://arxiv.org/abs/1305.1116
Publikováno v:
Phys. Rev. B. 87, 094520 (2013)
Single crystals of MgCNi$_3$, with areas sized up to 1 mm$^{2}$, were grown by the self flux method using a cubic anvil high pressure technique. The first critical field \textit{H$_{c1}$}, determined from a zero temperature extrapolation, is around 1
Externí odkaz:
http://arxiv.org/abs/1301.3561
Autor:
Schneider, T., Weyeneth, S.
We explore the implications of Berezinskii-Kosterlitz-Thouless (BKT) critical behavior on the two dimensional (2D) quantum superconductor-insulator (QSI) transition driven by the tuning parameter x. Concentrating on the sheet resistance R(x) BKT beha
Externí odkaz:
http://arxiv.org/abs/1212.1330
Autor:
Bendele, M., Maisuradze, A., Roessli, B., Gvasaliya, S. N., Pomjakushina, E., Weyeneth, S., Conder, K., Keller, H., Khasanov, R.
Publikováno v:
Phys. Rev. B 87, 060409(R) (2013)
The magnetic properties of Fe1.03Te under hydrostatic pressure up to p ~ 5.7 GPa were investigated by means of muon spin rotation, dc magnetization, and neutron depolarization measurements. With increasing pressure the antiferromagnetic ordering temp
Externí odkaz:
http://arxiv.org/abs/1209.0383
Autor:
Zhigadlo, N. D., Weyeneth, S., Katrych, S., Moll, P. J. W., Rogacki, K., Bosma, S., Puzniak, R., Karpinski, J., Batlogg, B.
Publikováno v:
Phys. Rev. B 86, 214509 (2012)
Single crystals of the LnFeAsO (Ln1111, Ln = Pr, Nd, and Sm) family with lateral dimensions up to 1 mm were grown from NaAs and KAs flux at high pressure. The crystals are of good structural quality and become superconducting when O is partially subs
Externí odkaz:
http://arxiv.org/abs/1208.6207
Autor:
Weyeneth, S., Bendele, M., von Rohr, F., Dluzewski, P., Puzniak, R., Krzton-Maziopa, A., Bosma, S., Guguchia, Z., Khasanov, R., Shermadini, Z., Amato, A., Pomjakushina, E., Conder, K., Schilling, A., Keller, H.
Publikováno v:
Phys. Rev. B 86, 134530 (2012)
An extended study of the superconducting and normal-state properties of various as-grown and post-annealed RbxFe2-ySe2 single crystals is presented. Magnetization experiments evidence that annealing of RbxFe2-ySe2 at 413 K, well below the onset of ph
Externí odkaz:
http://arxiv.org/abs/1208.4760
Publikováno v:
Phys. Rev. B 86, 174502 (2012)
A vortex lock-in transition was directly detected by torque magnetometry in an overdoped YBa2Cu3O7 single crystal of low anisotropy (\approx 7). The locked-in state was observed below the 3D to 2D crossover temperature Tcr = 76 K, independently of ex
Externí odkaz:
http://arxiv.org/abs/1208.3062