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By means of layer resolved ion irradiation the mechanisms involved in the irradiation driven modifications of the exchange bias effect in NiFe/FeMn bilayers have been investigated. It is shown that not only the locations of the defects but…

Materials Science · Physics 2009-11-10 S. Poppe , J. Fassbender , B. Hillebrands

We consider theoretically the interplay between Zeeman coupling and exchange-induced swap action in spin-based quantum dot quantum computer models in the presence of inhomogeneous magnetic fields, which are invariably present in real…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Xuedong Hu , Rogerio de Sousa , S. Das Sarma

An interacting bilayer electron system provides an extended platform to study electron-electron interaction beyond single layers. We report here experiments demonstrating that the layer densities of an asymmetric bilayer electron system…

Mesoscale and Nanoscale Physics · Physics 2017-09-13 H. Deng , Y. Liu , I. Jo , L. N. Pfeiffer , K. W. West , K. W. Baldwin , M. Shayegan

The phenomena of exchange anisotropy is well known in terms of static magnetization properties such as enhanced coercivity and magnetization loop shifts. These effects are primarily associated with effective anisotropies introduced into the…

Materials Science · Physics 2007-05-23 R. L. Stamps , K. Usadel

Quantum mechanical calculations based on an extended Heisenberg model are compared with ferromagnetic resonance (FMR) experiments on prototype trilayer systems Ni_7/Cu_n/Co_2/Cu(001) in order to determine and separate for the first time…

Strongly Correlated Electrons · Physics 2009-11-11 S. Schwieger , J. Kienert , K. Lenz , J. Lindner , K. Baberschke , W. Nolting

In a magnetic multilayer, magnetizations can be manipulated by spin transfer torque. Both spin transfer torque and its reciprocal effect, spin pumping, are governed by spin mixing conductance. The magnitude of spin mixing conductance at the…

Mesoscale and Nanoscale Physics · Physics 2021-12-15 Adam B. Cahaya , Muhammad Aziz Majidi

In layered magnetic materials, the magnetic coupling between neighboring van der Waals layers is challenging to understand and anticipate, although the exchange interaction inside a layer can be well rationalized for example by the…

Materials Science · Physics 2020-08-04 Jiewen Xiao , Binghai Yan

We show that interlayer charge transfer in 2D materials can be driven by an in-plane electric field, giving rise to electrical multipole generation in linear and second order of in-plane field. The linear and nonlinear effects have quantum…

Mesoscale and Nanoscale Physics · Physics 2024-09-05 Huiyuan Zheng , Dawei Zhai , Cong Xiao , Wang Yao

We present a theory of the spin Hall magnetoresistance of metals in contact with magnetic insulators. We express the spin-mixing conductances, which govern the phenomenology of the effect, in terms of the microscopic parameters of the…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 X. P. Zhang , F. S. Bergeret , V. N. Golovach

By analyzing the spin-group symmetry of magnons, we establish two generalized Onsager's relations in the magnon thermal Hall effect, which reveals the rich and complicated structures of the magnon Berry curvature in the parameter space of…

Mesoscale and Nanoscale Physics · Physics 2026-03-04 Jikun Zhou , Yang Gao , Qian Niu

The optically induced indirect exchange interaction between spins in two quantum dots is investigated theoretically. We present a microscopic formulation of the interaction between the localized spin and the itinerant carriers including the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 G. Ramon , Y. Lyanda-Geller , T. L. Reinecke , L. J. Sham

We present an analytical framework capable of describing spin-waves dynamic in magnetic hetero-structures composed of a pair of exchange-decoupled magnetic layers separated by a nonmagnetic spacer, focusing in particular on garnet-based…

Applied Physics · Physics 2026-05-12 A. Del Giacco , L. Menna , M. J. Gross , O. Wojewoda , V. Levati , M. Urbanek , S. Kurdi , E. Albisetti , D. Petti , C. A. Ross

We analyze magnetic phases of monolayers of transition metal dichalcogenides that are two-valley materials with electron-electron interactions. The exchange inter-valley scattering makes two-valley systems less stable to the spin…

Strongly Correlated Electrons · Physics 2019-07-31 Dmitry Miserev , Jelena Klinovaja , Daniel Loss

We describe a systematic study of the exchange coupling between a magnetically hard metallic ferromagnet (MnAs) and a magnetically soft ferromagnetic semiconductor (GaMnAs) in bilayer and trilayer heterostructures. An exchange spring model…

Materials Science · Physics 2015-05-13 M. J. Wilson , M. Zhu , R. C. Myers , D. D. Awschalom , P. Schiffer , N. Samarth

In graphene moir\'e superlattices, electronic interactions between layers are mostly hidden as band structures get crowded because of folding, making their interpretation cumbersome. Here, the evolution of the electronic band structure as a…

Mesoscale and Nanoscale Physics · Physics 2021-09-01 Francisco Sanchez-Ochoa , Andres Botello-Mendez , Cecilia Noguez

We study theoretically layered spin systems where long-range dipolar interactions play a relevant role. By choosing a specific sample shape, we are able to reduce the complex Hamiltonian of the system to that of a much simpler coupled…

Statistical Mechanics · Physics 2009-11-11 Alessandro Campa , Ramaz Khomeriki , David Mukamel , Stefano Ruffo

Recent demonstrations of magnetic ordering and spin transport in two-dimensional heterostructures have opened research venues in these material systems. In order to control and enhance the related physical phenomena, quantitative…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 Jonathan J. Heath , Marcio Costa , Marco Buongiorno-Nardelli , Marcelo A. Kuroda

We critically reexamine the problem of interatomic exchange interactions, which describe the total energy change caused by infinitesimal rotations of spins near some equilibrium state. For the small variations, such interactions can be…

Materials Science · Physics 2021-03-24 I. V. Solovyev

Magnetic thin films at ferromagnetic resonance (FMR) leak angular momentum, which may be absorbed by adjacent layers. This phenomenon, known as spin pumping, is manifested by an increase in the resonance linewidth ($\Delta H$), and the…

Mesoscale and Nanoscale Physics · Physics 2017-09-08 Masoumeh Fazlali , Martina Ahlberg , Mykola Dvornik , Johan Åkerman

We observed a magnetic interfacial effect due to the coupling between two interfaces of different materials. The interface is compoust of an antiferromagnetic and other quasi-ferromagnetic material. This effect we measured through the…

Materials Science · Physics 2023-03-06 Wibson W. G. Silva , Sérgio V. B. Degiorgi , José Holanda
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