Zobrazeno 1 - 10
of 494
pro vyhledávání: '"Coşkun U"'
Publikováno v:
JHEP 1812 (2018) 015
We examine the $5d$ Yang-Mills matrix model in $0+1$-dimensions with $U(4N)$ gauge symmetry and a mass deformation term. We determine the explicit $SU(4)\approx SO(6)$ equivariant parametrizations of the gauge field and the fluctuations about the cla
Externí odkaz:
http://arxiv.org/abs/1806.10524
Publikováno v:
Phys. Rev. D 95, 065021 (2017)
We solve the Landau problem for charged particles on odd-dimensional spheres $S^{2k-1}$ in the background of constant SO(2k-1) gauge fields carrying the irreducible representation $\left ( \frac{I}{2}, \frac{I}{2}, \cdots, \frac{I}{2} \right)$. We de
Externí odkaz:
http://arxiv.org/abs/1612.03855
Publikováno v:
Phys. Rev. Lett. 110, 247001 (2013)
We perform measurements of phase-slip-induced switching current events on different types of superconducting weak links and systematically study statistical properties of the switching current distributions. We employ two types of devices in which a
Externí odkaz:
http://arxiv.org/abs/1303.2620
Autor:
Borzenets, I. V., Coskun, U. C., Mebrahtu, H. T., Bomze, Yu. V., Smirnov, A. I., Finkelstein, G.
We examine the nature of the transitions between the normal and the superconducting branches of superconductor-graphene-superconductor Josephson junctions. We attribute the hysteresis between the switching (superconducting to normal) and retrapping (
Externí odkaz:
http://arxiv.org/abs/1212.6297
We fabricate superconductor-graphene-superconductor Josephson junctions with superconducting regions made of lead (Pb). The critical current through grapehene may be modulated by external magnetic field; the resulting Fraunhofer interference pattern
Externí odkaz:
http://arxiv.org/abs/1112.1987
Publikováno v:
Phys. Rev. Lett. 108, 097003 (2012)
We study the stochastic nature of switching current in hysteretic current-voltage characteristics of superconductor-graphene-superconductor (SGS) junctions. We find that the dispersion of the switching current distribution scales with temperature as
Externí odkaz:
http://arxiv.org/abs/1109.6284
Publikováno v:
Physical Review Letters 107, 137005 (2011)
We report on graphene-based Josephson junctions with contacts made from lead. The high transition temperature of this superconductor allows us to observe the supercurrent branch at temperatures up to $\sim 2$ K, at which point we can detect a small,
Externí odkaz:
http://arxiv.org/abs/1109.0769
We experimentally investigate electrical transport properties of graphene, which is a two dimensional (2D) conductor with relativistic energy dispersion relation. By investigating single- and bi-layer graphene devices with different aspect ratios, we
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703052
Publikováno v:
Appl.Phys.Lett. vol.86, 122106 (2005)
The effect of purification on room temperature electronic transport properties of single-wall carbon nanotubes (SWNT) was studied by submerging samples into liquid mercury. The conductance plots of purified SWNTs showed plateaus, indicating weak depe
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505377
Akademický článek
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