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We investigate long-range chiral magnetic interactions among adatoms mediated by surface states spin-splitted by spin-orbit coupling. Using the Rashba model, the tensor of exchange interactions is extracted wherein a pseudo-dipolar…

Mesoscale and Nanoscale Physics · Physics 2017-03-08 Juba Bouaziz , Manuel dos Santos Dias , Abdelhamid Ziane , Mouloud Benakki , Stefan Blügel , Samir Lounis

We present the results of a systematic micromagnetic study of the effect of the Dzyaloshinskii-Moriya interaction (DMI) on the spin wave band structure of two one-dimensional magnonic crystals (MCs), both with the same periodicity p=300 nm,…

Mesoscale and Nanoscale Physics · Physics 2021-12-13 R. Silvania , M. Kuepferling , S. Tacchi , G. Carlotti

Van der Waals (vdW) ferromagnets are an important class of materials for spintronics applications. The recent discovery of atomically vdW magnets CrI$_3$ and Cr$_2$Ge$_2$Te$_6$ has triggered a renaissance in the area of two-dimensional (2D)…

Strongly Correlated Electrons · Physics 2021-10-22 Yu Liu , Zhixiang Hu , Eli Stavitski , Klaus Attenkofer , C. Petrovic

Current-induced domain wall motion in the presence of the Dzyaloshinskii-Moriya interaction (DMI) is experimentally and theoretically investigated in heavy-metal/ferromagnet bilayers. The angular dependence of the current-induced torque and…

Electric control of magnetism is a prerequisite for efficient and low power spintronic devices. More specifically, in heavy metal/ ferromagnet/ insulator heterostructures, voltage gating has been shown to locally and dynamically tune…

It is well established that the spin-orbit interaction in heavy metal/ferromagnet heterostructures leads to a significant interfacial Dzyaloshinskii-Moriya Interaction (DMI) that modifies the internal structure of magnetic domain walls…

Mesoscale and Nanoscale Physics · Physics 2019-05-22 Ran Cheng , Maxwell Li , Arjun Sapkota , Anish Rai , Ashok Pokhrel , Tim Mewes , Claudia Mewes , Di Xiao , Marc De Graef , Vincent Sokalski

After the discovery of magnetism in monolayer CrI3, the magnetic properties of different 2D materials from the chromium-trihalide family are intuitively assumed to be similar, yielding magnetic anisotropy from the spin-orbit coupling on…

Mesoscale and Nanoscale Physics · Physics 2021-03-24 C. Bacaksiz , D. Šabani , R. M. Menezes , M. V. Milošević

When atomically thin van der Waals (vdW) magnet forms long-period moir\'e pattern with a magnetic substrate, the sensitive dependence of interlayer magnetic coupling on the atomic registries can lead to moir\'e defined magnetization…

Mesoscale and Nanoscale Physics · Physics 2020-10-23 Chengxin Xiao , Jianju Tang , Pei Zhao , Qingjun Tong , Wang Yao

The first magnetic 2D material discovered, monolayer (ML) CrI$_3$, is particularly fascinating due to its ground state ferromagnetism. Yet, because monolayer materials are difficult to probe experimentally, much remains unresolved about ML…

The magnetic properties of (111)-oriented Rh/Co/Pt and Pd/Co/Pt multilayers are investigated by first-principles calculations. We focus on the interlayer exchange coupling, and identify thicknesses and composition where a typical…

Materials Science · Physics 2018-10-24 Hongying Jia , Bernd Zimmermann , Stefan Blügel

Recent advances in the understanding of spin orbital effects in ultrathin magnetic heterostructures have opened new paradigms to control magnetic moments electrically. The Dzyaloshinskii-Moriya interaction (DMI) is said to play a key role…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Jacob Torrejon , Junyeon Kim , Jaivardhan Sinha , Seiji Mitani , Masamitsu Hayashi , Michihiko Yamanouchi , Hideo Ohno

Exploring novel two-dimensional multiferroic materials that can realize electric-field control of two-dimensional magnetism has become an emerging topic in spintronics. Using first-principles calculations, we demonstrate that non-metallic…

Materials Science · Physics 2022-05-25 Ziji Shao , Jinghua Liang , Qirui Cui , Mairbek Chshiev , Albert Fert , Tiejun Zhou , Hongxin Yang

The many-body fixed-node and fixed-phase spin-orbit Diffusion Monte Carlo (DMC) methods are applied to accurately predict the fundamental gap of monolayer CrI$_3$ - the first experimentally-realized 2D material with intrinsic magnetism. The…

Moir\'e magnetism, parallel with moir\'e electronics that has led to novel correlated and topological electronic states, emerges as a new venue to design and control exotic magnetic phases in twisted magnetic two-dimensional(2D) crystals.…

In this letter, we report the visualization of topologically protected spin textures, in the form of magnetic skyrmions, in recently discovered monoatomic-thin two-dimensional CrI$_3$. By combining density functional theory and atomistic…

Materials Science · Physics 2019-07-24 Aroop K. Behera , Sugata Chowdhury , Suprem R. Das

Artificial spin ices are metamaterials that can host several ferromagnetic resonances as well as spin waves. As the field advances towards the creation of three-dimensional geometries, a trilayer square artificial spin ice has been already…

Mesoscale and Nanoscale Physics · Physics 2026-03-13 V. Vanga , G. Alatteili , E. Iacocca

We model Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$ (Bi2212) bilayer system by an inversion symmetry broken and time reversal non invariant Bloch Hamiltonian H. The pseudo-gap phase of the bilayer is assumed to be chiral d density wave ordered. The…

Superconductivity · Physics 2021-12-16 Kakoli Bera , Udai Prakash Tyagi , Partha Goswami

Novel 2D material CrI3 reveals unique combination of 2D ferromagnetism and robust excitonic response. We demonstrate that the possibility of the formation of magnetic topological defects, such as Neel skyrmions, together with large…

Materials Science · Physics 2022-05-31 M. Kazemi , V. A. Shahnazaryan , Y. V. Zhumagulov , P. F. Bessarab , I. A. Shelykh

Periodically patterned metamaterials are known for exhibiting wave properties similar to the ones observed in electronic band structures in crystal lattices. In particular, periodic ferromagnetic materials are characterized by the presence…

Mesoscale and Nanoscale Physics · Physics 2019-02-20 R. A. Gallardo , D. Cortés-Ortuño , T. Schneider , A. Roldán-Molina , Fusheng Ma , R. E. Troncoso , K. Lenz , H. Fangohr , J. Lindner , P. Landeros

The possibility of utilizing the rich spin-dependent properties of graphene has attracted great attention in pursuit of spintronics advances. The promise of high-speed and low-energy consumption devices motivates a search for layered…