Journal ArticleDOI
Resistive transition in superconducting films
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Abstract:
The consequences of a vortex unbinding picture of two-dimensional superconductivity are worked out. Although there is no true finite-temperature phase transition, dirty superconducting films should display anomalous behavior below the BCS transition temperature and above an effective Kosterlitz-Thouless vortex unbinding temperature. In particular, both the conductivity and fluctuation diamagnetism behave like ξ
+
2
in this regime, where ξ+ is the correlation length calculated by Kosterlitz, ξ+-ξ
c
exp (B/T − T
c)1/2. We estimate ξc, B, and the vortex unbinding temperature, and determine the nonlinear resistivity below T
c. A recent theory of vortex dynamics, together with a time-dependent Ginzburg-Landau theory, lead to a determination of the frequency-dependent conductivity.read more
Citations
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Journal ArticleDOI
Superconducting Interfaces Between Insulating Oxides
Nicolas Reyren,Stefan Thiel,Andrea D. Caviglia,L. Fitting Kourkoutis,German Hammerl,Christoph Richter,Christof W. Schneider,Thilo Kopp,Anna-Sabina Ruetschi,Didier Jaccard,Marc Gabay,David A. Muller,Jean-Marc Triscone,Jochen Mannhart +13 more
TL;DR: This work reports on superconductivity in the electron gas formed at the interface between two insulating dielectric perovskite oxides, LaAlO3 and SrTiO3.
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Two-dimensional turbulence
Robert H. Kraichnan,D Montgomery +1 more
TL;DR: The theory of two-dimensional turbulence is reviewed and unified, and some hydrodynamic and plasma applications are considered in this paper, where some equations of incompressible hydrodynamics, absolute statistical equilibrium, spectral transport of energy and enstrophy, turbulence on the surface of a rotating sphere, turbulent diffusion, MHD turbulence, and two dimensional superflow are discussed.
Journal ArticleDOI
Large-area high-quality 2D ultrathin Mo2C superconducting crystals
Chuan Xu,Libin Wang,Zhibo Liu,Long Chen,Jingkun Guo,Ning Kang,Xiuliang Ma,Hui-Ming Cheng,Wencai Ren +8 more
TL;DR: The fabrication of large-area high-quality 2D ultrathin α-Mo2C crystals by chemical vapour deposition (CVD) that show 2D characteristics of superconducting transitions that are consistent with Berezinskii-Kosterlitz-Thouless behaviour and show strong anisotropy with magnetic field orientation.
Journal ArticleDOI
Two-dimensional vortices in a stack of thin superconducting films: A model for high-temperature superconducting multilayers
TL;DR: It is shown that Josephson coupling can be neglected in the high-temperature superconductors only under very stringent conditions.
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Nernst effect in high-Tc superconductors
Yayu Wang,Lu Li,Nai Phuan Ong +2 more
TL;DR: In this paper, the authors present a series of measurements to high fields $H$ which provide strong evidence for this phase-disordering scenario, and support the scenario that superfluidity vanishes because long-range phase coherence is destroyed by thermally-created vortices (in zero field), and that the pair condensate extends high into the pseudogap state in the underdoped regime.
References
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Journal ArticleDOI
Ordering, metastability and phase transitions in two-dimensional systems
TL;DR: In this article, a new definition of order called topological order is proposed for two-dimensional systems in which no long-range order of the conventional type exists, and the possibility of a phase transition characterized by a change in the response of the system to an external perturbation is discussed in the context of a mean field type of approximation.
Journal ArticleDOI
The critical properties of the two-dimensional xy model
TL;DR: In this paper, the critical properties of the xy model with nearest-neighbour interactions on a two-dimensional square lattice were studied by a renormalization group technique, and the correlation length is found to diverge faster than any power of the deviation from the critical temperature.
The Critical properties of the two-dimensional x y model
TL;DR: In this paper, the critical properties of the xy model with nearest-neighbour interactions on a two-dimensional square lattice were studied by a renormalization group technique, and the correlation length is found to diverge faster than any power of the deviation from the critical temperature.
Journal ArticleDOI
Universal Jump in the Superfluid Density of Two-Dimensional Superfluids
David R. Nelson,J. M. Kosterlitz +1 more
TL;DR: In this article, it was shown that a universal jump in the superfluid density of two-dimensional planar magnets and liquid crystals occurs when the phase transition is approached from below.
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