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The slow dynamics and concomitant memory (aging) effects seen in nanomagnetic systems are analyzed on the basis of two separate paradigms : superparamagnets and spinglasses. It is argued that in a large class of aging phenomena it suffices…

统计力学 · 物理学 2009-11-11 Malay Bandyopadhyay , Sushanta Dattagupta

We investigate the vortex flow anisotropy in the mixed state of nematic superconductors, focusing on the effects of nematic-superconducting coupling on vortex dynamics. Using numerical simulations within a time-dependent Ginzburg-Landau…

It has been shown that superconducting vortices with antiferromagnetic cores arise within Zhang's SO(5) model of high temperature supercondictivity. Similar phenomena where the symmetry is not restored in the core of the vortex was…

超导电性 · 物理学 2016-08-31 Kirk B. W. Buckley , Ariel R. Zhitnitsky

Disordered and amorphous materials often retain memories of perturbations they have experienced since preparation. Studying such memories is a gateway to understanding this challenging class of systems, yet it often requires the ability to…

软凝聚态物质 · 物理学 2023-02-21 Dor Shohat , Yoav Lahini

Applying the London theory we study curved vortices produced by an external current near and parallel to the surface of a type II superconductor. By minimizing the energy functional we find the contour describing the hard core of the flux…

超导电性 · 物理学 2015-05-13 Eran Sela , Ian Affleck

Multiple transient memories, originally discovered in charge-density-wave conductors, are a remarkable and initially counterintuitive example of how a system can store information about its driving. In this class of memories, a system can…

软凝聚态物质 · 物理学 2013-09-27 Nathan C. Keim , Joseph D. Paulsen , Sidney R. Nagel

Kinetics of biological motors such as kinesin or dynein is notably influenced by viscoelastic intracellular environment. The characteristic relaxation time of the cytosol is not separable from the colloidal timescale and therefore their…

统计力学 · 物理学 2025-12-09 Mateusz Wiśniewski , Jakub Spiechowicz

Using the ultra low damping NiMnSb half-Heusler alloy patterned into vortex-state magnetic nano-dots, we demonstrate a new concept of non-volatile memory controlled by the frequency. A perpendicular bias magnetic field is used to split the…

We discuss the roles of viscosity in relativistic fluid dynamics from the point of view of memory effects. Depending on the type of quantity to which the memory effect is applied, different terms appear in higher order corrections. We show…

高能物理 - 唯象学 · 物理学 2010-01-15 T. Kodama , T. Koide

In a type II superconductor in a moderate magnetic field, the superconductor to normal state transition may be described as a phase transition in which the vortex lattice melts into a liquid. In a biaxial superconductor, or even a uniaxial…

超导电性 · 物理学 2009-11-07 E. W. Carlson , A. H. Castro Neto , D. K. Campbell

We study the vortex formation in extreme type-II superconductors immersed in strong magnetic fields in the framework of the the Ginzburg-Landau theory. We focus on the regime where superconductivity survives in the bulk of the material but…

数学物理 · 物理学 2025-08-18 M. Correggi , A. Kachmar

We study a mean-field model of superconducting vortices in a II-type superconductor. We prove the global solvability of the problem about a flux of superconducting vortices through a given domain and also analyse the regularity of weak…

偏微分方程分析 · 数学 2024-09-25 S. N. Antontsev , N. V. Chemetov

It is shown that due to memory effects the complex behaviour of components in a stochastic system can be transmitted to macroscopic evolution of the system as a whole. Within the Markov approximation widely using in ordinary statistical…

adap-org · 物理学 2009-10-30 A. A. Stanislavsky

A combination of the memory function formalism and time-dependent density-functional theory is applied to transport in dilute magnetic semiconductors. The approach considers spin and charge disorder and electron-electron interaction on an…

材料科学 · 物理学 2007-05-23 F. V. Kyrychenko , C. A. Ullrich

Memory effects can have a profound impact on the resistivity of semiconductor systems, resulting in giant negative magnetoresistance and MIRO phenomena. This work opens the discussion of the memory effects in 3D conducting systems featured…

介观与纳米尺度物理 · 物理学 2021-08-11 K. S. Denisov , K. A. Baryshnikov , P. S. Alekseev , N. S. Averkiev

Stimulated by recent experimental results, we simulate ``temperature''-cycling experiments in a model for the compaction of granular media. We report on the existence of two types of memory effects: short-term dependence on the history of…

软凝聚态物质 · 物理学 2009-10-31 A. Barrat , V. Loreto

This paper examines the coexistence of resistive, capacitive, and inertia (virtual inductive) effects in memristive devices, focusing on ReRAM devices, specifically the interface-type or non-filamentary analog switching devices. A…

介观与纳米尺度物理 · 物理学 2024-01-30 Sahitya Yarragolla , Torben Hemke , Jan Trieschmann , Thomas Mussenbrock

The interaction between a superconducting vortex in a type II superconducting film (SC) and a ferromagnet (FM) with out-of-plane magnetization is investigated theoretically within the London approximation. The dependence of the interaction…

超导电性 · 物理学 2009-11-10 M. V. Milosevic , F. M. Peeters

We have measured the surface impedance of thick superconductors in the mixed state over a broad 2 kHz - 20 MHz frequency range. The depinning cross-over is observed; but it is much broader than expected from classical theories of pinning. A…

超导电性 · 物理学 2015-06-25 N. Lutke-Entrup , B. Placais , P. Mathieu , Y. Simon

The movement of magnetic flux quanta (Abrikosov vortices) in superconductors leads to dissipation and is influenced by various ordering effects arising from vortex-vortex, vortex-defect, and vortex-edge interactions. Under combined dc and…

超导电性 · 物理学 2025-03-11 Igor Bogush , Vladimir M. Fomin , Oleksandr V. Dobrovolskiy