Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Guenon, S."'
We have investigated the vortex dynamics in superconducting thin film devices with non-uniform patterns of artificial pinning centers (APCs). The magneto-transport properties of a conformal crystal and a randomly diluted APC pattern are compared with
Externí odkaz:
http://arxiv.org/abs/1305.5875
Autor:
Guénon, S., Scharinger, S., Wang, Siming, Ramírez, J. G, Koelle, D., Kleiner, R., Schuller, Ivan K.
Publikováno v:
EPL 101 57003 2013
We have measured the electrical properties of a V2O3 thin film micro bridge at the insulator metal transition (IMT). Discontinuous jumps to lower voltages in the current voltage characteristic (IV) followed by an approximately constant voltage progre
Externí odkaz:
http://arxiv.org/abs/1210.6648
Autor:
Gross, B., Guenon, S., Yuan, J., Li, M. Y., Li, J., Iishi, A., Mints, R. G., Hatano, T., Wu, P. H., Koelle, D., Wang, H. B., Kleiner, R.
Publikováno v:
Phys. Rev. B 86, 094524 (2012)
We have studied experimentally and numerically temperature profiles and the formation of hot spots in intrinsic Josephson junction stacks in Bi2Sr2CaCu2O8 (BSCCO). The superconducting stacks are biased in a state where all junctions are resistive. Th
Externí odkaz:
http://arxiv.org/abs/1206.6275
Autor:
Li, M. Y., Yuan, J., Kinev, N., Li, J., Gross, B., Guenon, S., Ishii, A., Hirata, K., Hatano, T., Koelle, D., Kleiner, R., Koshelets, V. P., Wang, H. B., Wu, P. H.
We report on measurements of the linewidth {\Delta}f of THz radiation emitted from intrinsic Josephson junction stacks, using a Nb/AlN/NbN integrated receiver for detection. Previous resolution limited measurements indicated that {\Delta}f may be bel
Externí odkaz:
http://arxiv.org/abs/1206.2125
Autor:
Werner, R., Aladyshkin, A. Yu., Guenon, S., Fritzsche, J., Nefedov, I. M., Moshchalkov, V. V., Kleiner, R., Koelle, D.
Publikováno v:
Phys. Rev. B 84, 020505(R) (2011)
We report on imaging of the nonuniform superconducting states in a Pb thin film bridge on top of a ferromagnetic BaFe_{12}O_{19} single crystal with a single straight domain wall along the center of the bridge by low-temperature scanning laser micros
Externí odkaz:
http://arxiv.org/abs/1105.6048
Autor:
Aladyshkin, A. Yu., Fritzsche, J., Werner, R., Kramer, R. B. G., Guenon, S., Kleiner, R., Koelle, D., Moshchalkov, V. V.
Publikováno v:
Phys. Rev. B 84, 094523 (2011)
We studied experimentally the effect of a stripe-like domain structure in a ferromagnetic BaFe_{12}O_{19} substrate on the magnetoresistance of a superconducting Pb microbridge. The system was designed in such a way that the bridge is oriented perpen
Externí odkaz:
http://arxiv.org/abs/1105.1596
Autor:
Guénon, S., Grünzweig, M., Gross, B., Yuan, J., Jiang, Z. G., Zhong, Y. Y., Iishi, A., Wu, P. H., Hatano, T., Koelle, D., Wang, H. B., Kleiner, R.
At high enough input power in stacks of Bi_2Sr_2CaCu_2O8 intrinsic Josephson junctions a hot spot (a region heated to above the superconducting transition temperature) coexists with regions still in the superconducting state. In the ``cold'' regions
Externí odkaz:
http://arxiv.org/abs/1005.2341
Autor:
Wang, H. B., Guenon, S., Gross, B., Yuan, J., Jiang, Z. G., Zhong, Y. Y., Gruenzweig, M., Iishi, A., Wu, P. H., Hatano, T., Koelle, D., Kleiner, R.
We report on THz emission measurements and low temperature scanning laser imaging of Bi_2Sr_2CaCu_2O_8 intrinsic Josephson junction stacks. Coherent emission is observed at large dc input power, where a hot spot and a standing wave, formed in the "co
Externí odkaz:
http://arxiv.org/abs/1005.0081
Autor:
Wang, H. B., Guénon, S., Yuan, J., Iishi, A., Arisawa, S., Hatano, T., Yamashita, T., Koelle, D., Kleiner, R.
Recently, it has been shown that large stacks of intrinsic Josephson junctions in Bi2Sr2CaCu2O8 emit synchronous THz radiation, the synchronization presumably triggered by a cavity resonance. To investigate this effect we use Low Temperature Scanning
Externí odkaz:
http://arxiv.org/abs/0807.2749
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