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To verify the exact underlying mechanism of ultrafast vortex-core reversal as well as the vortex state stability we conducted numerical calculations of the dynamic evolution of magnetic vortices in Permalloy cylindrical nanodots under an…

Materials Science · Physics 2007-11-20 Ki-Suk Lee , Konstantin Y. Guslienko , Jun-Young Lee , Sang-Koog Kim

The ionic selectivity of nanopores is crucial for the energy conversion based on nanoporous membranes. It can be significantly affected by various parameters of nanopores and the applied fields driving ions through porous membranes. Here,…

Soft Condensed Matter · Physics 2024-10-29 Chao Zhang , Mengnan Guo , Hongwen Zhang , Xiuhua Ren , Yinghao Gao , Yinghua Qiu

With controlled ionic current rectification (ICR) achieved through a strategically designed non-uniform surface charge distribution, short unipolar nanopores exhibit promising applications in nanofluidic sensors, ionic circuits, and ion…

Chemical Physics · Physics 2025-12-08 Hongwen Zhang , Long Ma , Di Liu , Tianyi Sui , Zuzanna S. Siwy , Yinghua Qiu

The rotating nuclei represent one of most interesting subjects for theoretical and experimental studies. They open a new dimension of nuclear landscape, namely, spin direction. Contrary to the majority of nuclear systems, their properties…

Nuclear Theory · Physics 2016-04-27 A. V. Afanasjev

N\'eel magnetic domain walls that are stabilized by achiral energy terms instead of the usual Dzyaloshinskii-Moriya interaction will be bistable, with the two possible chiral forms being degenerate. Here we focus on the theoretical study of…

Mesoscale and Nanoscale Physics · Physics 2023-09-14 Eloi Haltz , Kévin J. A. Franke , Christopher H. Marrows

The theory of dynamic conductivity of nanosystem is developed within the model of rectangular potentials and different effective masses of electron in open three-barrier resonance-tunnel structure in a constant homogeneous electric field.…

Mesoscale and Nanoscale Physics · Physics 2011-06-23 Ju. Seti , M. Tkach , O. Voitsekhivska

Understanding the current-induced vibrational dynamics in molecular nanojunctions is critical for gaining insight into the stability of such systems. While it is well known that Joule heating at higher bias voltages plays an important role…

Mesoscale and Nanoscale Physics · Physics 2025-03-26 Martin Mäck , Riley J. Preston , Michael Thoss , Samuel L. Rudge

Particle transport through an open, discrete 1-D channel against a mechanical or chemical bias is analyzed within a master equation approach. The channel, externally driven by time dependent site energies, allows multiple occupation due to…

Statistical Mechanics · Physics 2015-05-18 Mario Einax , Gemma Solomon , Wolfgang Dieterich , Abraham Nitzan

In the approach of biomolecules to a nanopore, it is essential to capture the effects of hydrodynamic anisotropy of the molecules and the near-wall hydrodynamic interactions which hinder their diffusion. We present a detailed theoretical…

Soft Condensed Matter · Physics 2020-12-09 Radost Waszkiewicz , Maciej Lisicki

Single molecular rotor is an important component for constructing bot-tom-up molecular mechanical machines and a window for shedding light on complex physical and chemical questions about motions of organic molecules on surfaces. Stability…

Mesoscale and Nanoscale Physics · Physics 2022-04-05 Kwan Ho Au Yeung , Tim Kühne , Frank Eisenhut , Francesca Moresco

It has been suggested that microtubules and other cytoskeletal filaments may act as electrical transmission lines. An electrical circuit model of the microtubule is constructed incorporating features of its cylindrical structure with…

Subcellular Processes · Quantitative Biology 2010-06-28 Holly Freedman , Vahid Rezania , Avner Priel , Eric Carpenter , Sergei Y. Noskovd , Jack A. Tuszynski

Simulations can help unravel the complicated ways in which molecular structure determines function. Here, we use molecular simulations to show how slight alterations of a molecular motor's structure can cause the motor's typical dynamical…

Statistical Mechanics · Physics 2023-08-21 Alex Albaugh , Geyao Gu , Todd R. Gingrich

We predict unidirectional magnetoresistance effects arising in a bilayer composed of a nonmagnetic metal and a ferromagnetic insulator, whereby both longitudinal and transverse resistances vary when the direction of the applied electric…

Mesoscale and Nanoscale Physics · Physics 2025-03-10 M. Mehraeen , Pengtao Shen , Steven S. -L. Zhang

Kinetic equations for the stationary state distribution function of ions moving through narrow pores are solved for a number of one-dimensional models of single ion transport. Ions move through pores of length $L$, under the action of a…

Soft Condensed Matter · Physics 2009-11-10 Jaroslaw Piasecki , Rosalind J. Allen , Jean-Pierre Hansen

We study the electric properties of single-stranded DNA molecules with hairpin-like shapes in the presence of a magnetic flux. It is shown that the current amplitude can be modulated by the applied field. The details of the electric…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Juyeon Yi , Henri Orland

Superconductors connected to normal metallic electrodes at the nanoscale provide a potential source of non-locally entangled electron pairs. Such states would arise from Cooper pairs splitting into two electrons with opposite spins…

Mesoscale and Nanoscale Physics · Physics 2007-07-16 A. Levy Yeyati , F. S. Bergeret , A. Martin-Rodero , T. M. Klapwijk

In-vivo, cells are frequently exposed to multiple mechanical stimuli arising from the extracellular microenvironment, with deep impact on many biological functions. On the other hand, current methods for mechanobiology do not allow to…

Cell Behavior · Quantitative Biology 2017-12-07 M. Monticelli , D. S. Jokhun , D. Petti , G. V. Shivashankar , R. Bertacco

In optomechanical systems, the libration and rotation of nanoparticles offer profound insights for ultrasensitive torque measurement and macroscopic quantum superpositions. Achievements include transitioning libration to rotation up to 6…

Natural phenomena frequently involve a very large number of interacting molecules moving in confined regions of space. Cellular transport by motor proteins is an example of such collective behavior. We derive a deterministic compartmental…

Subcellular Processes · Quantitative Biology 2017-11-01 Yoram Zarai , Michael Margaliot , Anatoly B. Kolomeisky

We initiate numerical studies of differentially rotating magnetised (proto) neutron stars by studying - through construction from first principles - the coupling between an assumed differential rotation and an impressed magnetic field. For…

Astrophysics · Physics 2007-05-23 A. V. Thampan
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