4.8 Article

Ubiquitous Superconducting Diode Effect in Superconductor Thin Films

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Nanoscience & Nanotechnology

Supercurrent rectification and magnetochiral effects in symmetric Josephson junctions

Christian Baumgartner et al.

Summary: This study introduces the design and application of non-reciprocal superconducting devices. By fabricating and measuring Josephson junctions, researchers have successfully achieved rectification of supercurrent and proposed a semi-quantitative model to explain the experimental data.

NATURE NANOTECHNOLOGY (2022)

Article Physics, Multidisciplinary

Intrinsic Superconducting Diode Effect

Akito Daido et al.

Summary: Based on recent experiments, this study proposes an intrinsic mechanism for the superconducting diode effect and investigates the relationship between the asymmetry of the depairing current and temperature/magnetic field, revealing the rich phase diagram and functionalities of noncentrosymmetric superconductors.

PHYSICAL REVIEW LETTERS (2022)

Article Multidisciplinary Sciences

The field-free Josephson diode in a van der Waals heterostructure

Heng Wu et al.

Summary: The Josephson diode, which serves as the superconducting analogue to the semiconducting diode, has been realized in a van der Waals heterostructure, showing unique properties such as magnetic-field-free superconductivity and different behaviors under positive and negative currents.

NATURE (2022)

Article Physics, Multidisciplinary

A phenomenological theory of superconductor diodes

James Jun He et al.

Summary: Nonreciprocal responses in noncentrosymmetric systems are an important fundamental issue, especially non-dissipative and coherent nonreciprocal transport. Recent research on superconductor diodes has advanced this field significantly. This study provides theoretical descriptions and design principles of superconductor diodes, including analytical relations between nonreciprocal critical currents and system parameters in Rashba spin-orbit coupled systems, as well as numerical calculations.

NEW JOURNAL OF PHYSICS (2022)

Article Physics, Multidisciplinary

Theory of the Supercurrent Diode Effect in Rashba Superconductors with Arbitrary Disorder

S. Ilic et al.

Summary: In this study, we calculate the nonreciprocal critical current and quantify the supercurrent diode effect in twodimensional Rashba superconductors with arbitrary disorder, using the quasiclassical Eilenberger equation. The results show that even in the presence of strong disorder, the effect persists, and the sign of the diode effect changes as magnetic field and disorder are increased.

PHYSICAL REVIEW LETTERS (2022)

Article Multidisciplinary Sciences

Supercurrent diode effect and finite-momentum superconductors

Noah F. Q. Yuan et al.

Summary: When both inversion and time-reversal symmetries are broken, the critical current of a superconductor can be nonreciprocal. In this work, it is shown that in certain classes of two-dimensional superconductors with antisymmetric spin-orbit coupling, Cooper pairs acquire a finite momentum upon the application of an in-plane magnetic field, resulting in unequal critical currents in the direction parallel and antiparallel to the Cooper pair momentum. This supercurrent diode effect is also observed in the polarity dependence of in-plane critical fields induced by a supercurrent. These nonreciprocal effects can be found in polar SrTiO3 film, few-layer MoTe2 in the Td phase, and twisted bilayer graphene where the valley degree of freedom plays a role analogous to spin.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2022)

Article Materials Science, Multidisciplinary

Theory of zero-field superconducting diode effect in twisted trilayer graphene

Harley D. Scammell et al.

Summary: In this study, the superconducting phase in a heterostructure of mirror-symmetric twisted trilayer graphene and WSe2 was found to exhibit a zero-field superconducting diode effect, which has been investigated and explained with a microscopic theory. The findings not only contribute to the understanding of the physics of trilayer graphene on WSe2, but also provide guidance for future experiments in spin-orbit-coupled graphene moire systems.

2D MATERIALS (2022)

Article Physics, Multidisciplinary

Zero-field superconducting diode effect in small-twist-angle trilayer graphene

Jiang-Xiazi Lin et al.

Summary: A superconducting diode effect is observed in twisted trilayer graphene at zero magnetic field, indicating the coexistence of superconductivity and time-reversal symmetry breaking. This non-reciprocal behavior can be controlled by adjusting carrier density, twist angle, or applying a magnetic field.

NATURE PHYSICS (2022)

Article Physics, Multidisciplinary

Josephson diode effect from Cooper pair momentum in a topological semimetal

Banabir Pal et al.

Summary: This study reports the discovery of a giant Josephson diode effect in Josephson junctions formed from a type-II Dirac semimetal, NiTe2. The distinguishing feature of this effect is the asymmetry in the critical current, which depends on the magnitude and direction of an applied magnetic field and achieves its maximum value when the magnetic field is perpendicular to the current and is of the order of just 10 mT. These characteristic features can be explained by a model based on finite-momentum Cooper pairing that largely originates from the Zeeman shift of spin-helical topological surface states.

NATURE PHYSICS (2022)

Article Multidisciplinary Sciences

Supercurrent diode effect and magnetochiral anisotropy in few-layer NbSe2

Lorenz Bauriedl et al.

Summary: The supercurrent diode effect has been observed in NbSe2 crystals, where it is proportional to the out-of-plane magnetic field. This effect can be utilized for designing highly integrable superconducting quantum electronic devices.

NATURE COMMUNICATIONS (2022)

Article Multidisciplinary Sciences

Universal Josephson diode effect

Margarita Davydova et al.

Summary: We propose a universal mechanism for the Josephson diode effect in short Josephson junctions, which arises from finite Cooper pair momentum and simultaneous breaking of inversion and time-reversal symmetries. The diode efficiency is up to 40% with an asymmetry between the critical currents in opposite directions of approximately 230%. The mechanism is explained by the Doppler shift of the Andreev bound state energies and the phase-independent asymmetric current from the continuum. We also introduce a simple scheme for achieving finite-momentum pairing without relying on spin-orbit coupling, expanding the platforms for observing supercurrent diode effects.

SCIENCE ADVANCES (2022)

Article Materials Science, Multidisciplinary

Theory of giant diode effect in d-wave superconductor junctions on the surface of a topological insulator

Yukio Tanaka et al.

Summary: The nonreciprocal responses of noncentrosymmetric quantum materials have attracted considerable attention recently, especially for their rectification function in diodes. A theoretical study on the Josephson junction S/FI/S (S: d-wave superconductor, FI: ferromagnetic insulator) on the surface of a topological insulator reveals the potential for a large diode effect by tuning the crystal axes and magnetization. This result could pave the way for an efficient superconducting diode with low-energy cost.

PHYSICAL REVIEW B (2022)

Article Materials Science, Multidisciplinary

Interfacial control of vortex-limited critical current in type-II superconductor films

Marius K. Hope et al.

Summary: The study investigates the influence of Rashba spin-orbit coupling on the vortex barrier and critical current in type-II superconductor films, demonstrating that critical currents in superconductor-magnet heterostructures can be controlled and enhanced via interfacial spin-orbit coupling, which can be modulated by a gate voltage. This sheds light on a class of heterostructures amenable to gate-voltage modulation of superconducting critical currents and explains the recently observed gate-voltage enhancement of critical current in NbN films.

PHYSICAL REVIEW B (2021)

Article Multidisciplinary Sciences

Observation of superconducting diode effect

Fuyuki Ando et al.

NATURE (2020)

Article Physics, Applied

Anisotropy of flux pinning properties in superconducting (Li,Fe)OHFeSe thin films

Jens Haenisch et al.

SUPERCONDUCTOR SCIENCE & TECHNOLOGY (2020)

Article Physics, Applied

Spatial characterization of the edge barrier in wide superconducting films

A. G. Sivakov et al.

LOW TEMPERATURE PHYSICS (2018)

Article Physics, Multidisciplinary

Vortex ratchet induced by controlled edge roughness

D. Cerbu et al.

NEW JOURNAL OF PHYSICS (2013)

Article Physics, Multidisciplinary

Exchange-Coupling-Induced Symmetry Breaking in Topological Insulators

Peng Wei et al.

PHYSICAL REVIEW LETTERS (2013)

Article Materials Science, Multidisciplinary

Geometry-dependent critical currents in superconducting nanocircuits

John R. Clem et al.

PHYSICAL REVIEW B (2011)

Article Chemistry, Multidisciplinary

Achieving the Theoretical Depairing Current Limit in Superconducting Nanomesh Films

Ke Xu et al.

NANO LETTERS (2010)

Article Materials Science, Multidisciplinary

Asymmetry, bistability, and vortex dynamics in a finite-geometry ferromagnet-superconductor bilayer structure

G. Carapella et al.

PHYSICAL REVIEW B (2010)

Article Physics, Applied

Bistable Abrikosov vortex diode made of a Py-Nb ferromagnet-superconductor bilayer structure

G. Carapella et al.

APPLIED PHYSICS LETTERS (2009)

Article Physics, Applied

Asymmetric critical current of niobium microbridges with ferromagnetic stripe

A. Papon et al.

APPLIED PHYSICS LETTERS (2008)

Article Materials Science, Multidisciplinary

Superconducting rectifier based on the asymmetric surface barrier effect

DY Vodolazov et al.

PHYSICAL REVIEW B (2005)

Article Physics, Multidisciplinary

Mesoscopic field and current compensator based on a hybrid superconductor-ferromagnet structure

MV Milosevic et al.

PHYSICAL REVIEW LETTERS (2005)

Article Materials Science, Multidisciplinary

Considerable enhancement of the critical current in a superconducting film by a magnetized magnetic strip

DY Vodolazov et al.

PHYSICAL REVIEW B (2005)

Article Materials Science, Multidisciplinary

Experimental ratchet effect in superconducting films with periodic arrays of asymmetric potentials

JE Villegas et al.

PHYSICAL REVIEW B (2005)

Article Physics, Condensed Matter

Electronic structure of Sm and Eu chalcogenides

A Svane et al.

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS (2004)