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We describe a spin logic device with controllable magnetization switching of perpendicularly magnetized ferromagnet / heavy metal structures on a ferroelectric (1-x)[Pb(Mg1/3Nb2/3)O3]-x[PbTiO3] (PMN-PT) substrate using current-induced…

To push commercial electronics beyond its current size limits, atomic-scale communication channels and logic units need to be designed, making the use of quantum entities an imperative. In this regime, quantum fluctuations naturally become…

Mesoscale and Nanoscale Physics · Physics 2017-04-12 Leonardo Banchi , Joaquin Fernandez-Rossier , Cyrus F. Hirjibehedin , Sougato Bose

Magnetic domain walls function as a wave guide for low energy magnons. In this paper we develop the theory for the non-local transport of these bound magnons through a ferromagnetic insulator that are injected and detected electrically in…

Mesoscale and Nanoscale Physics · Physics 2021-08-25 Dion M. F. Hartmann , Andreas Rückriegel , Rembert A. Duine

We investigate the anisotropy of the optical properties of thin Fe films on GaAs(001) from first-principles calculations. Both intrinsic and magnetization-induced anisotropy are covered by studying the system in the presence of spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Sebastian Putz , Martin Gmitra , Jaroslav Fabian

We predict the giant ferroelectric control of interfacial properties of Ni/HfO2, namely, (i) the magnetocrystalline anisotropy and (ii) the inverse spin and orbital Rashba effects. The reversible control of magnetic properties using…

Materials Science · Physics 2024-12-09 Armando Pezo , Andrés Saul , Aurélien Manchon , Rémi Arras

Magnons provide a route to ultra-fast transport and non-destructive readout of spin-based information transfer. Here, we report magnon transport and its emergent anisotropic nature in BiFeO$_3$ layers confined between ultrathin layers of…

The role of orbital differentiation on the emergence of superconductivity in the Fe-based superconductors remains an open question to the scientific community. In this investigation, we employ a suitable microscopic spin probe technique,…

Superconductivity · Physics 2014-02-11 P. F. S. Rosa , C. Adriano , T. M. Garitezi , T. Grant , Z. Fisk , R. R. Urbano , P. G. Pagliuso

A new spin based logic device is proposed. It is comprised of a common free ferromagnetic layer separated by a tunnel junction from three inputs and one output with separate fixed layers. It has the functionality of a majority gate and is…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Dmitri E. Nikonov , George I. Bourianoff , Tahir Ghani

The nonreciprocal propagation of spin waves (SWs) offers opportunities for developing novel functional magnonic logic devices, where controllability is crucial for magnetic signal processing. Domain walls act as natural waveguides due to…

Materials Science · Physics 2025-07-30 Tingting Liu , Shuhong Li , Yunlong Liu , Shuchao Qin , Yang Liu , Wenjun Wang , Minghui Qin

Electric field effects in ferromagnetic/oxide dielectric structures provide a new route to control domain wall (DW) dynamics with low power dissipation. However, electric field effects on DW velocities have only been observed so far in the…

The optical conductivity of LaFeAsO, BaFe$_2$As$_2$, SrFe$_2$As$_2$, and EuFe$_2$As$_2$ in the spin-density wave (SDW) state is investigated within density functional theory (DFT) in the framework of spin-polarized generalized gradient…

Superconductivity · Physics 2010-12-09 Johannes Ferber , Yu-Zhong Zhang , Harald O. Jeschke , Roser Valenti

We report the prediction and observation of supra-binary ferroelectricity in a ferroelectric nanowire (FNW) covered with a semi-cylindrical gate that provides an anisotropic electric field in the FNW. There are gate-voltage-driven…

An all-electrical spin resonance effect in a GaAs few-electron double quantum dot is investigated experimentally and theoretically. The magnetic field dependence and absence of associated Rabi oscillations are consistent with a novel…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 E. A. Laird , C. Barthel , E. I. Rashba , C. M. Marcus , M. P. Hanson , A. C. Gossard

The use of spin waves as a signal carrier requires developing the functional elements allowing for multiplexing and demultiplexing information coded at different wavelengths. For this purpose, we propose a system of thin ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2021-05-25 Pierre Roberjot , Krzysztof Szulc , Jarosław W. Kłos , Maciej Krawczyk

Spin field effect transistors (SpinFET) are an iconic class of spintronic devices that exploit gate tuned spin-orbit interaction in semiconductor channels interposed between ferromagnetic source and drain contacts to elicit transistor…

Mesoscale and Nanoscale Physics · Physics 2023-11-08 Rahnuma Rahman , Supriyo Bandyopadhyay

The electron spin resonance (ESR) of two-dimensional electrons is investigated in a gated GaAs/AlGaAs heterostructure. We found that the ESR resonance frequency can be turned by means of a gate voltage. The front and back gates of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 H. W. Jiang , E. Yablonovitch

We propose a proof-of-principle experiment to encode one logical qubit in noise protected subspace of three identical spins in a methyl group. The symmetry analysis of the wavefunction shows that this fermionic system exhibits a symmetry…

Quantum Physics · Physics 2017-08-03 Razieh Annabestani , David G. Cory

Magnonic crystals are structures with periodically varied magnetic properties that are used to control collective spin-wave excitations. With micromagnetic simulations, we study spin-wave spectra in a 2D antidot lattice based on a…

Mesoscale and Nanoscale Physics · Physics 2022-12-14 M. Moalic , M. Krawczyk , M. Zelent

Magnetic tunnel junctions (MTJs) are key enablers of spintronic technologies used in a variety of applications including information storage, microwave generation and detection, as well as unconventional computing. Here, we present…

Mesoscale and Nanoscale Physics · Physics 2025-03-12 Andrea Meo , Chengcen Sha , Emily Darwin , Riccardo Tomasello , Mario Carpentieri , Ilya N. Krivorotov , Giovanni Finocchio

In this work, we study experimentally by broadband ferromagnetic resonance measurements, the dependence of the spin-wave excitation spectra on the magnetic applied field in CoFeB meander-shaped films. Two different orientations of the…

Mesoscale and Nanoscale Physics · Physics 2021-12-08 A. V. Sadovnikov , G. Talmelli , G. Gubbiotti , E. N. Beginin , S. Sheshukova , S. A. Nikitov , C. Adelmann , F. Ciubotaru
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