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The diversity of three-dimensional magnetic states in a FeGe nanocylinder is studied using micromagnetic simulations and off-axis electron holography in the transmission electron microscope. In particular, we report the observation of a…

The understanding of orbital hybridization and spin-polarization at the organic-ferromagnetic interface is essential in the search for efficient hybrid spintronic devices. Here, using first-principles calculations, we report a systematic…

We report on the use of the polarized $^3$He gas filter and neutron resonant enhancement techniques for the measurement of spin-polarized diffuse neutron scattering due to ferromagnetic domains. A CoO/Co exchange biased bilayer was grown on…

材料科学 · 物理学 2007-05-23 F. Radu , A. Vorobiev , J. Major , H. Humblot , K. Westerholt , H. Zabel

The interfaces in hybridized structures could give rise to rich phenomena, which open the way to novel devices with extraordinary performance. Here, we investigate the interface-related spin transport properties in Fe|Au bilayer based on…

介观与纳米尺度物理 · 物理学 2019-04-24 Song Li , Ka Shen , Ke Xia

Stacking two-dimensional (2D) layered materials offers a powerful platform to engineer electronic and magnetic states. In general, the resulting states, such as Moir\'e magnetism, have a periodicity at the length scale of the Moir\'e unit…

The spiral magnetic structure and underlying spin lattice of BiMnFe2O6 are investigated by low-temperature neutron powder diffraction and density functional theory band structure calculations. In spite of the random distribution of the Mn3+…

We investigate the fine and spin structure of ultralong-range Rydberg molecules exposed to a homogeneous magnetic field. Each molecule consists of a $^{87}$Rb Rydberg atom whose outer electron interacts via spin-dependent $s$- and p-wave…

原子物理 · 物理学 2018-05-02 Frederic Hummel , Christian Fey , Peter Schmelcher

Assessing and controlling magnetic interactions in magnetic nanostructures are critical to nanomagnetic and spintronic explorations, such as magnetic recording media, permanent magnets, magnetic memory and logic devices, etc. Here we…

We report broadband spectroscopy and numerical analysis by which we explore propagating spin waves in a magnetic bilayer consisting of a 23 nm thick permalloy film deposited on 130 nm thick $Y_{3}Fe_{5}O_{12}$. In the bilayer, we observe a…

应用物理 · 物理学 2019-04-03 Kyongmo An , Vinayak Bhat , Michal Mruczkiewicz , Carsten Dubs , Dirk Grundler

In the field of spintronics, ferromagnetic/non-magnetic metallic multilayers are core building blocks for emerging technologies. Resonance experiments using stripline transducers are commonly used to characterize and engineer these stacks…

介观与纳米尺度物理 · 物理学 2019-07-19 O. Gladii , R. L. Seeger , L. Frangou , G. Forestier , U. Ebels , S. Auffret , V. Baltz

First-principles density-functional theory calculations show switching magnetization by 90 degree can be achieved in ultrathin BFO film by applying external electric-field. Up-spin carriers appear to the surface with positive field while…

材料科学 · 物理学 2013-02-01 Hong-Jian Feng

We present theoretical predictions of spintronic transport phenomena that should be observable in ferromagnetic Fe nanocontacts bridged by chains of Fe atoms. We develop appropriate model Hamiltonians based on semi-empirical considerations…

介观与纳米尺度物理 · 物理学 2015-06-25 Hugh Dalgleish , George Kirczenow

The zero-temperature phase diagram of the frustrated spin-$\frac{1}{2}$ $J_{1}$--$J_{2}$--$J_{1}^{\perp}$ Heisenberg magnet on an $AA$-stacked honeycomb bilayer lattice is studied using the coupled cluster method implemented to very high…

强关联电子 · 物理学 2023-09-29 P. H. Y. Li , R. F. Bishop

Individual nuclear spin states can have very long lifetimes and could be useful as qubits. Progress in this direction was achieved on MgO/Ag(001) via detection of the hyperfine interaction (HFI) of Fe, Ti and Cu adatoms using scanning…

介观与纳米尺度物理 · 物理学 2022-07-20 Sufyan Shehada , Manuel dos Santos Dias , Muayad Abusaa , Samir Lounis

We analyze the fate of spiral order in a one-dimensional system of localized magnetic moments coupled to itinerant electrons under a voltage bias. Within an adiabatic approximation for the dynamics of the localized spins, and in the…

介观与纳米尺度物理 · 物理学 2024-12-18 Xiaohu Han , Pedro Ribeiro , Stefano Chesi

We report investigation of ferromagnetic resonance phenomenon in ferromagnetic thin films with essentially non-uniform composition. Epitaxial Pd-Fe thin film with linear distribution of Fe content across the thickness is used as the model…

Based on a multi-scale calculations, combining ab-initio methods with spin dynamics simulations, we perform a detailed study of the magnetic behavior of Ni2MnAl/Fe bilayers. Our simulations show that such a bilayer exhibits a small exchange…

介观与纳米尺度物理 · 物理学 2017-09-06 Rocio Yanes , Eszter Simon , Sebastian Keller , Balazs Nagyfalusi , Sergii Khmelevsky , Laszlo Szunyogh , Ulrich Nowak

We study frustrated spin-1/2 dimer systems in two dimensions with a bilayer structure, where spins are ferromagnetically coupled in dimers. Our model includes frustrated two-spin exchange interactions as well as four-spin interaction. We…

强关联电子 · 物理学 2019-12-17 Toshiya Hikihara , Takahiro Misawa , Tsutomu Momoi

Phase coexistence phenomena have been intensively studied in strongly correlated materials where several ordered states simultaneously occur or compete. Material properties critically depend on external parameters and boundary conditions,…

The influence of in-plane and canted magnetic fields on spin spirals and skyrmions in atomic bilayer islands of palladium and iron on an Ir(111) substrate is investigated by scanning tunnelling microscopy at low temperatures. It is shown…

介观与纳米尺度物理 · 物理学 2016-08-03 Lorenz Schmidt , Julian Hagemeister , Pin-Jui Hsu , André Kubetzka , Kirsten von Bergmann , Roland Wiesendanger