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相关论文: Diffusive conductors as Andreev interferometers

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The paper is devoted to the applications of the theory of dynamical systems to the theory of transport phenomena in metals in the presence of strong magnetic fields. More precisely, we consider the connection between the geometry of the…

数学物理 · 物理学 2021-05-18 A. Ya. Maltsev , S. P. Novikov

We investigate the properties of a system where the itinerant electrons coexist and interact with the preformed local pairs. Using the nonperturbative continuous unitary transformation technique we show that Andreev-type scattering between…

超导电性 · 物理学 2018-04-17 T. Domanski , M. Baranska , A. L. Solovjov

We derive and apply a general scheme for mapping a setup consisting of a half-filled single level quantum dot coupled to one normal metallic and two superconducting phase-biased leads onto an ordinary half-filled single impurity Anderson…

介观与纳米尺度物理 · 物理学 2021-08-03 Peter Zalom , Vladislav Pokorný , Tomáš Novotný

We present a two-dimensional model of a Fermionic wire which shows a power-law conductance behavior despite the presence of uncorrelated disorder along the direction of the transport. The power-law behavior is attributed to the presence of…

介观与纳米尺度物理 · 物理学 2024-07-08 Junaid Majeed Bhat

Light transport in a metal with two-dimensional hole arrays is considered. Analytical expression for a transmission coefficient in periodic, isolated and disordered cases are derived, assuming the existence of waveguide modes transverse…

介观与纳米尺度物理 · 物理学 2016-05-04 Zh. S. Gevorkian , V. Gasparian , Emilio Cuevas

We experimentally study the influence of 1-40 GHz radiation on the resistance of normal (N) mesoscopic conductors coupled to superconducting (S) loops (Andreev interferometers). At low RF amplitudes we observe the usual h/2e…

介观与纳米尺度物理 · 物理学 2010-03-11 C. Checkley , A. Iagallo , R. Shaikhaidarov , J. T. Nicholls , V. T. Petrashov

We present a quantum transport theory for generic magnetic metals, in which magnetism occurs predominantly due to exchange interactions, such as ferromagnets, antiferromagnets, altermagnets and p-wave magnets. Our theory is valid both for…

超导电性 · 物理学 2025-06-11 Tim Kokkeler , Ilya Tokatly , F. Sebastian Bergeret

We calculate the subgap density of states of a disordered single-channel normal metal connected to a superconductor at one end (NS junction) or at both ends (SNS junction). The probability distribution of the energy of a bound state…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Titov , N. A. Mortensen , H. Schomerus , C. W. J. Beenakker

We develop an analytical theory for diffusive random lasers by coupling the transport theory of the disordered medium to the semiclassical laser rate equations, accounting for (coherent) stimulated and (incoherent) spontaneous emission.…

无序系统与神经网络 · 物理学 2012-03-27 R. Frank , A. Lubatsch , J. Kroha

We study the transport properties and the spectral statistics of a one-dimensional closed quantum system of interacting spinless fermions in a quasiperiodic potential which produces a single particle mobility edge in the absence of…

无序系统与神经网络 · 物理学 2021-01-04 Soumi Ghosh , Jyotsna Gidugu , Subroto Mukerjee

We find that multiple Andreev reflections mediating the transport in superconducting point contacts are strongly affected by a small amount of impurities in the area of the contact. We also argue that the model based on Zener transitions…

超导电性 · 物理学 2007-05-23 N. B. Kopnin , V. M. Vinokur

In the present work we explore electron transport properties through a quantum interferometer attached symmetrically to two one-dimensional semi-infinite metallic electrodes, namely, source and drain. The interferometer is made up of two…

介观与纳米尺度物理 · 物理学 2010-05-03 Santanu K. Maiti

Within the Landau paradigm of continuous phase transitions, ordered states of matter are characterized by a broken symmetry. Although the broken symmetry is usually evident, determining the driving force behind the phase transition is often…

超导电性 · 物理学 2015-06-04 Jiun-Haw Chu , Hsueh-Hui Kuo , James G. Analytis , Ian R. Fisher

After decades of fundamental research, unconventional superconductivity has recently been demonstrated in rare-earth infinite-layer nickelates. The current view depicts these systems as a new category of superconducting materials, as they…

超导电性 · 物理学 2021-06-01 A. S. Botana , F. Bernardini , A. Cano

Andreev reflection at the interface between a ferromagnet and a superconductor has become a foundation of a versatile new technique of measuring the spin polarization of magnetic materials. In this paper we will briefly outline a general…

材料科学 · 物理学 2009-10-31 I. I. Mazin , A. A. Golubov , B. Nadgorny

We study Multiple Andreev Reflections in long diffusive superconductor(S)-normal metal(N)-superconductor junctions with low-transparency interfaces. Assuming strong thermalization in the weak link we calculate the current-voltage dependence…

超导电性 · 物理学 2022-09-16 A. V. Polkin , P. A. Ioselevich

We develop a detailed theory describing a non-trivial interplay between non-equilibrium effects and long-range quantum coherence in superconducting hybrid nanostructures exposed to a temperature gradient. We establish a direct relation…

超导电性 · 物理学 2021-04-05 Mikhail S. Kalenkov , Andrei D. Zaikin

We present an experimental and theoretical investigation of coherent current transport in wide ballistic superconductor-two dimensional electron gas-superconductor junctions. It is found experimentally that upon increasing the junction…

介观与纳米尺度物理 · 物理学 2009-11-10 P. Samuelsson , A. Ingerman , G. Johansson , E. V. Bezuglyi , V. S. Shumeiko , G. Wendin , R. Kursten , A. Richter , T. Matsuyama , U. Merkt

Transport in multiphase flow through porous media plays a central role in many biological, geological, and engineered systems. Here, we use numerical simulations of transport in immiscible two-phase flow to investigate dispersion in…

流体动力学 · 物理学 2021-11-29 Joachim Mathiesen , Gaute Linga , Marek Misztal , Francois Renard , Tanguy Le Borgne

We study the non linear response of current-transport in a superconducting diffusive nanowire between normal reservoirs. We demonstrate theoretically and experimentally the existence of two different superconducting states appearing when…

超导电性 · 物理学 2012-10-16 N. Vercruyssen , T. G. A. Verhagen , M. G. Flokstra , J. P. Pekola , T. M. Klapwijk