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Spin-orbit coupling stands as a pivotal determinant in the realm of condensed matter physics. In recent, its profound influence on spin dynamics opens up a captivating arena with promising applications. Notably, the topological…

Mesoscale and Nanoscale Physics · Physics 2024-08-06 Taekoo Oh , Naoto Nagaosa

We report on spin-vortex pair dynamics measured at temperatures low enough to suppress stochastic core motion, thereby uncovering the highly non-linear intrinsic dynamics of the system. Our analysis shows that the decoupling of the two…

Mesoscale and Nanoscale Physics · Physics 2019-02-06 A. V. Bondarenko , E. Holmgren , Z. W. Li , B. A. Ivanov , V. Korenivski

Dynamics of coupled spin-torque oscillators can be exploited for non-Boolean information processing. However, the feasibility of coupling large number of STOs with energy-efficiency and sufficient robustness towards parameter-variation and…

Disordered Systems and Neural Networks · Physics 2013-09-16 Mrigank Sharad , Deliang Fan , Karthik Yogendra , Kaushik Roy

A magnetic nanoparticle in a vortex state is a promising candidate for the information storage. One bit of information corresponds to the upward or downward magnetization of the vortex core (vortex polarity). Generic properties of the…

Strongly Correlated Electrons · Physics 2009-11-13 Yuri B. Gaididei , Volodymyr P. Kravchuk , Franz G. Mertens , Denis D. Sheka

The spin transfer torque in all-metal dual spin valve, in which two antiparallelly aligned pinned ferromagnetic layers are on the two sides of a free ferromagnetic layer with two thin nonmagnetic spacers in between, is studied in the…

Mesoscale and Nanoscale Physics · Physics 2011-06-23 P. Yan , Z. Z. Sun , X. R. Wang

In metallic ferromagnets, the spin-transfer torque and spin-motive force are known to exhibit a reciprocal relationship. Recent experiments on ferromagnets with strong spin-orbit coupling have revealed a rich complexity in the interaction…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 Kjetil M. D. Hals , Arne Brataas

Static and dynamic properties of vortices in a two-component Bose-Einstein condensate with Rashba spin-orbit coupling are investigated. The mass current around a vortex core in the plane-wave phase is found to be deformed by the spin-orbit…

Quantum Gases · Physics 2017-04-12 Masaya Kato , Xiao-Fei Zhang , Hiroki Saito

We present study of the dynamics of two ring waveguide structure with space dependent coupling, linear gain and nonlinear absorption - the system that can be implemented in polariton condensates, optical waveguides, and nanocavities. We…

Pattern Formation and Solitons · Physics 2018-05-30 Aleksandr Ramaniuk , Nguyen Viet Hung , Michael Giersig , Krzysztof Kempa , Vladimir V. Konotop , Marek Trippenbach

We study the electric-dipole transitions for a single electron in a double quantum dot located in a semiconductor nanowire. Enabled by spin-orbit coupling (SOC), electric-dipole spin resonance (EDSR) for such an electron can be generated…

Mesoscale and Nanoscale Physics · Physics 2018-05-16 Zhi-Hai Liu , Rui Li , Xuedong Hu , J. Q. You

In superconductors spin-split by an exchange field, thermal effects are coupled to spin transport. We show how an oscillating electromagnetic field in such systems creates spin imbalance, that can be detected with a spin-polarized probe.…

Superconductivity · Physics 2016-01-25 P. Virtanen , T. T. Heikkilä , F. S. Bergeret

We theoretically show that the topology of a non-simply-connected annular atomic Bose-Einstein condensate enforces the inner surface waves to be always excited with outer surface excitations and that the inner surface modes are associated…

Quantum Gases · Physics 2012-07-26 S. J. Woo , Young-Woo Son

We present a combined analytical and numerical study on double-vortex spin-torque nano-oscillators and describe a mechanism that suppresses the windmill modes. The magnetization dynamics is dominated by the gyrotropic precession of the…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Volker Sluka , Attila Kákay , Alina M. Deac , Daniel E. Bürgler , Riccardo Hertel , Claus M. Schneider

We theoretically investigate the supercurrent-induced magnetization dynamics of a two-dimensional lattice of ferromagnetically ordered spins placed on a conventional superconductor with broken spatial inversion symmetry and strong…

Mesoscale and Nanoscale Physics · Physics 2016-06-29 Kjetil M. D. Hals

We investigate the structure and the nonlinear dynamics of two rigid polar rotors coupled through the dipole-dipole interaction in an external homogeneous electric field. In the field-free stable head-tail configuration, an excess energy is…

Chaotic Dynamics · Physics 2020-01-08 Rosario González-Férez , Manuel Iñarrea , J. Pablo Salas , Peter Schmelcher

We consider a quasi one-dimensional configuration consisting of two small pieces of ferromagnetic material separated by a metallic one and contacted by two metallic leads. A spin-polarized current is injected from one lead. Our goal is to…

Mesoscale and Nanoscale Physics · Physics 2007-06-13 J. Peguiron , M. -S. Choi , C. Bruder

This paper presents a methodology of controlling the resonance energy exchange in mechanical system consisting of two weakly coupled magnetic pendulums interacting with the magnetic field generated by coils placed underneath. It is shown…

Systems and Control · Electrical Eng. & Systems 2023-04-20 Valery N. Pilipchuk , Krystian Polczyński , Maksymilian Bednarek , Jan Awrejcewicz

The current controlled modulation of nano-contact based spin torque oscillator (STO) pairs is studied in both the synchronized and non-synchronized states. The synchronized state shows a well behaved modulation and demonstrates robust…

Materials Science · Physics 2011-05-11 Ye. Pogoryelov , P. K. Muduli , S. Bonetti , E. Iacocca , Fred Mancoff , Johan Åkerman

Atomtronic quantum sensors based on trapped superfluids offer a promising platform for high-precision inertial measurements where the dynamics of quantized vortices can serve as sensitive probes of external forces. We analytically…

Quantum Gases · Physics 2026-05-12 A. Chaika , A. O. Oliinyk , I. V. Yatsuta , M. Edwards , N. P. Proukakis , T. Bland , A. I. Yakimenko

We derive the effective charge- and current-density operators for the strong-coupling limit of a single-band Mott insulator in the presence of spin-orbit coupling and show that the spin-orbit contribution to the effective charge density…

Strongly Correlated Electrons · Physics 2015-06-23 Shan Zhu , You-Quan Li , Cristian D. Batista

We have employed complete micromagnetic simulations to analyze dc current driven self-oscillations of a vortex core in a spin-valve nanopillar in a perpendicular field by including the coupled effect of the spin-torque and the magnetostatic…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 G. Finocchio , V. S. Pribiag , L. Torres , R. A. Buhrman , B. Azzerboni
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