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Akademický článek
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Two-phase superconductor tapes were produced by blending high purity magnesium diboride powder with a liquid ethylcellulose-based polymeric binder. This procedure produced a material which is easily formable with a high superconducting transition tem
Externí odkaz:
http://arxiv.org/abs/0907.1744
Since it was first observed about 40 years ago [1], the peak effect has been the subject of numerous research mainly impelled by the desire to determine its exact mechanisms. Despite these efforts, a consensus on this question has yet to be reached.
Externí odkaz:
http://arxiv.org/abs/0904.3499
In amorphous superconductors, superconducting and vortex pinning properties are strongly linked to the absence of long range order. Consequently, superconductivity and vortex phases can be studied to probe the underlying microstructure and order of t
Externí odkaz:
http://arxiv.org/abs/0812.1003
We report on magnetization measurements performed on a series of Fe$_{x}$Ni$_{1-x}$Zr$_{2}$ superconducting metallic glasses with $0\leq x\leq0.5$ using the Hall effect of a nearby 2-dimensional electron gas (2DEG) in a GaAs/Al$_{0.33}$Ga$_{0.67}$As
Externí odkaz:
http://arxiv.org/abs/0811.2913
Autor:
Kim, D., Sheng, W., Poole, P. J., Dalacu, D., Lefebvre, J., Lapointe, J., Reimer, M. E., Aers, G. C., Williams, R. L.
Photoluminescence data from single, self-assembled InAs/InP quantum dots in magnetic fields up to 7 T are presented. Exciton g-factors are obtained for dots of varying height, corresponding to ground state emission energies ranging from 780 meV to 11
Externí odkaz:
http://arxiv.org/abs/0809.2771
We present experiments on weakly-pinned vortices, which exhibit a large critical transverse depinning force. These results are obtained in the superconducting metallic glasses Fe$_{x}$Ni$_{1-x}$Zr$_{2}$ using crossed ac and dc driving currents. We st
Externí odkaz:
http://arxiv.org/abs/0807.2788
We present experimental evidence for the existence of a large critical transverse depinning force. These results are obtained in the weakly-pinned superconducting metal glasses Fe$_{x}$Ni$_{1-x}$Zr$_{2}$ using crossed ac and dc driving currents. We s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0611393
We experimentally characterize the transverse vortex motion and observed some striking features. We found large structures and peaks in the Hall resistance, which can be attributed to the long-range inhomogeneous vortex flow present in some phases of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510616