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Related papers: Interlayer exchange coupling in (Ga,Mn)As based mu…

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Based on a microscopic model, we study the interplay between superconductivity and antiferromagnetism in a multi-layered system, where two superconductors are separated by an antiferromagnetic region. Within a self-consistent mean-field…

Superconductivity · Physics 2015-05-19 H. T. Quan , Jian-Xin Zhu

The in-plane correlation lengths and magnetic disorder of magnetic domains in a transition metal multilayer have been studied using neutron scattering techniques. A new theoretical framework is presented connecting the observed scattering…

Materials Science · Physics 2014-12-24 Sean Langridge , Joerg Schmalian , C. H. Marrows , D. T. Dekadjevi , B. J. Hickey

Composite materials consisting of coupled magnetic and ferroelectric layers hold the promise for new emergent properties such as controlling magnetism with electric fields. Obviously, the interfacial coupling mechanism plays a crucial role…

Electrical current-induced deterministic magnetization switching in a magnetic multilayer structure without external magnetic field is realized by utilizing interlayer exchange coupling. Two ferromagnetic Co layers, with in-plane and…

Materials Science · Physics 2018-04-04 Yu Sheng , Kevin William Edmonds , Xingqiao Ma , Houzhi Zheng , Kaiyou Wang

We develop the theory of magnetic domain wall motion in coupled double-layer systems where electrons can hop between the layers giving rise to an antiferromagnetic coupling. We demonstrate that the force from the interlayer coupling drives…

Mesoscale and Nanoscale Physics · Physics 2015-01-26 Henri Saarikoski , Hiroshi Kohno , Christopher H. Marrows , Gen Tatara

The detailed nature of electronic states mediating ferromagnetic coupling in dilute magnetic semiconductors, specifically (Ga,Mn)As, has been an issue of long debate. Two confronting models have been discussed emphasizing host band vs.…

Materials Science · Physics 2017-03-08 J. Kanski , L. Ilver , K. Karlsson , I. Ulfat , M. Leandersson , J. Sadowski , I. Di Marco

We study the effect of interlayer tunneling in the gauge theory describing a quasi-two-dimensional paramagnetic metal close to a second-order or weakly first-order antiferromagnetic phase boundary. In that theory, two species of fermions…

Condensed Matter · Physics 2009-10-28 S. Khlebnikov

Transition metal oxides are well known for their complex magnetic and electrical properties. When brought together in heterostructure geometries, they show particular promise for spintronics and colossal magnetoresistance applications. In…

Strongly Correlated Electrons · Physics 2017-11-15 Ching-Hao Chang , Sujit Das , Sanjeev Kumar , R. Ganesh

A study of the multilayer system MgO/CoFeB(1.1nm)/Ta($t$)/CoFeB(0.8nm)/MgO is presented, where the two CoFeB layers are separated by a Ta interlayer of varying thickness $t$. The magnetization properties deduced from complementary…

We observe a strong thermally-controlled magnon-mediated interlayer coupling of two ferromagnetic layers via an antiferromagnetic spacer in spin-valve type trilayers. The effect manifests itself as a field-induced coherent switching of the…

Mesoscale and Nanoscale Physics · Physics 2021-06-09 Dmytro M. Polishchuk , Yuliia O. Tykhonenko-Polishchuk , Olena V. Gomonay , Vladislav Korenivski

We have used polarized neutron reflectometry to study the structural and magnetic properties of the individual layers in a series of (Al,Be,Ga)As/(Ga,Mn)As/GaAs/(Ga,Mn)As multilayer samples. Structurally, we observe that the samples are…

Materials Science · Physics 2009-11-13 B. J. Kirby , J. A. Borchers , X. Liu , Y. J. Cho , M. Dobrowolska , J. K. Furdyna

The thermodynamics of a spin-1/2 magnetic multilayer system with antiferromagnetic interplanar couplings is studied using the Pair Approximation method. The special attention is paid to magnetocaloric properties, quantified by isothermal…

Materials Science · Physics 2014-09-09 Karol Szałowski , Tadeusz Balcerzak

The superexchange theory predicts dominant antiferromagnetic kinetic interaction when the orbitals accommodating magnetic electrons are covalently bonded through diamagnetic bridging atoms/groups. Here we show that explicit consideration of…

Strongly Correlated Electrons · Physics 2020-09-23 Zhishuo Huang , Dan Liu , Akseli Mansikkamäki , Veacheslav Vieru , Naoya Iwahara , Liviu F. Chibotaru

We carefully investigated the ferromagnetic coupling in the as-grown and annealed ferromagnetic semiconductor GaMnAs/AlGaMnAs bilayer devices. We observed that the magnetic interaction between the two layers strongly affects the…

Materials Science · Physics 2015-01-27 Y. F. Cao , Yanyong Li , Yuanyuan Li , G. N. Wei , Y. Ji , K. Y. Wang

The interlayer antiferromagnetic coupling hinders the observation of quantum anomalous Hall effect in magnetic topological insulator MnBi$_2$Te$_4$. We demonstrate that interlayer \textit{ferromagnetism} can be established by utilizing the…

Materials Science · Physics 2021-06-09 Yulei Han , Shiyang Sun , Shifei Qi , Xiaohong Xu , Zhenhua Qiao

We study a model thin film containing diluted bilayer structure with the RKKY long-range interaction. The magnetic subsystem is composed of two magnetically doped layers, separated by an undoped nonmagnetic spacer and placed inside a wider…

Materials Science · Physics 2015-05-13 Karol Szałowski , Tadeusz Balcerzak

Antiferromagnetically coupled multilayers with perpendicular anisotropy, as [CoPt]/Ru, Co/Ir, Fe/Au, display ferromagnetic stripe phases as the ground states. It is theoretically shown that the antiferromagnetic interlayer exchange causes a…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 N. S. Kiselev , I. E. Dragunov , U. K. Roessler , A. N. Bogdanov

We investigate the interlayer exchange coupling in Fe/MgO/Fe and Fe/MgO/Co systems with magnetic Fe nanoclusters embedded in the MgO spacer. Samples are grown by molecular beam epitaxy (MBE) and utilize wedged MgO films to independently…

Mesoscale and Nanoscale Physics · Physics 2010-12-16 Jared J. I. Wong , Luciana Ramirez , A. G. Swartz , A. Hoff , Wei Han , Yan Li , R. K. Kawakami

We report the discovery of an effect where two ferromagnetic materials, one semiconductor ((Ga,Mn)As) and one metal (permalloy), can be directly deposited on each other and still switch their magnetization independently. We use this…

Mesoscale and Nanoscale Physics · Physics 2008-12-03 S. Mark , C. Gould , K. Pappert , J. Wenisch , K. Brunner , G. Schmidt , L. W. Molenkamp

In antiferromagnetically coupled multilayers with perpendicular anisotropy unusual multidomain textures can be stabilized due to a close competition between long-range demagnetization fields and short-range interlayer exchange coupling. In…

Mesoscale and Nanoscale Physics · Physics 2011-09-30 N. S. Kiselev , U. K. Roessler , A. N. Bogdanov , O. Hellwig