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Indirect exchange coupling in magnetic multilayers, also known as the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, is known to be highly effective in controlling the interlayer alignment of the magnetization. This coupling is typically…

We present a theory for the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction mediated by a two-dimensional (2D) electron system subjected to periodic driving. This is demonstrated for a heterostructure consisting of two ferromagnets…

Mesoscale and Nanoscale Physics · Physics 2024-09-02 Mahmoud M. Asmar , Wang-Kong Tse

We show that dipole-field induced antiferromagnetic coupling, or RKKY ferromagnetic coupling, between Co layers can strongly affect the low magnetic field switching behavior of Co/Cu/Co nanopillars. Whereas current-assisted switching at low…

Materials Science · Physics 2007-05-23 S. Urazhdin , W. P. Pratt , J. Bass

We theoretically discuss the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between semiconductor quantum dots (QDs). When each QD having a local spin is coupled to the conduction electrons in semiconductors, an indirect exchange…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 H. Tamura , K. Shiraishi , H. Takayanagi

We investigate theoretically the transport properties of two independent artificial Kondo impurities. They are coupled together via a tunable Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction. For strong enough antiferromagnetic RKKY…

Strongly Correlated Electrons · Physics 2009-11-10 Pascal Simon , Rosa Lopez , Yuval Oreg

We study the properties of heterostructures formed by two layers of diluted magnetic semiconductor separated by a nonmagnetic semiconductor layer. We find that there is a RKKY-type exchange coupling between the magnetic layers that oscilles…

Materials Science · Physics 2009-11-07 M. P. López-Sancho , M. C. Muñoz , L. Brey

Using the multiband model we analyze the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between the magnetic impurities in layered ferropnictide superconductors. In the normal state the interaction is spin isotropic and is dominated by…

Strongly Correlated Electrons · Physics 2011-10-14 Alireza Akbari , Ilya Eremin , Peter Thalmeier

Ruderman-Kittel-Kasuya-Yosida (RKKY) is an essential long range magnetic interaction between magnetic impurities or magnetic layered structures, the magnitude of which oscillates with the distance ($\mathrm{R}$) between them. We have…

Mesoscale and Nanoscale Physics · Physics 2023-02-15 Anirban Kundu , M. B. A. Jalil

We consider a spin-fermion model consisting of free electrons coupled to classical spins, where the latter are embedded in a quasi one-dimensional superlattice structure consisting of spin blocks separated by spinless buffers. Using a…

Strongly Correlated Electrons · Physics 2020-09-30 Sabyasachi Tarat , Jian Li , Richard T. Scalettar , Rubem Mondaini

We have systematically investigated the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between two magnetic impurities in Weyl semimetals with arbitrary monopole charge $Q$. We find that the RKKY interaction becomes intrinsically…

Mesoscale and Nanoscale Physics · Physics 2017-10-25 Yong Sun , Anmin Wang

A discussion on the interaction between skyrmions in a bi-layer system connected by a non-magnetic metal is presented. From considering a free charge carrier model, we have shown that the Ruderman-Kittel-Kasuya-Yosida (RKKY ) inter- action…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 R. Cacilhas , S. Vojkovic , V. L. Carvalho-Santos , E. B. Carvalho , A. R. Pereira , D. Altbir , Á. S. Núñez

We demonstrate a 20-fold enhancement in the strength of the RKKY interlayer exchange in dilute-ferromagnet/normal-metal multilayers by incorporating ultrathin Fe layers at the interfaces. Additionally, the resulting increase in the…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 Dmytro M. Polishchuk , Milton Persson , Mykola M. Kulyk , Erik Holmgren , Gabriele Pasquale , Vladislav Korenivski

Silicene offers an ideal platform for exploring the phase transition due to strong spin-orbit interaction and its unique structure with strong tunability. With applied electric field and circularly polarized light, siliccene is predicted to…

Mesoscale and Nanoscale Physics · Physics 2017-04-07 Hou-Jian Duan , Shi-Han Zheng , Zhen-Long Sun , Mou Yang , Rui-Qiang Wang

Magnetic impurities in real materials can mask the intrinsic spin-dependent properties of hosts. They interact indirectly through the Ruderman-Kittel-Kasuya-Yosida (RKKY) mechanism, which limits the use of isolated impurity spins in…

Mesoscale and Nanoscale Physics · Physics 2026-02-25 Mohsen Yarmohammadi , Pei-Hao Fu , James K. Freericks

Magnetic interactions between impurity spins play a crucial role in determining magnetic configurations in spintronic systems. Using a Green's function formalism, we investigate Ruderman-Kittel-Kasuya-Yosida (RKKY) exchange interactions…

Mesoscale and Nanoscale Physics · Physics 2025-09-16 Anirban Kundu

Ferromagnetic (FM) layers separated by nonmagnetic metallic spacer layers can exhibit Ruderman Kittel Kasuya Yosida (RKKY) coupling which may lead to a stable synthetic antiferromagnetic (SAF) phase. In this article we study magnetization…

We study the stabilization of an isolated magnetic skyrmion in a magnetic monolayer on a nonmagnetic conducting substrate via the Ruderman-Kittel-Kasuya-Yosida (RKKY) exchange interaction. Two different types of the substrate are…

Strongly Correlated Electrons · Physics 2018-02-14 Alla V. Bezvershenko , Alexei K. Kolezhuk , Boris A. Ivanov

We study the tuning mechanisms of the Ruderman-Kittel-Kasuya-Yosida (RKKY) exchange interaction between two lateral quantum dots in the Kondo regime. At zero magnetic field we observe the expected splitting of the Kondo resonance and…

Strongly Correlated Electrons · Physics 2015-05-20 Daniel Tutuc , Bogdan Popescu , Dieter Schuh , Werner Wegscheider , Rolf J. Haug

We use first-principles Quantum Monte-Carlo simulations to study the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between hydrogen adatoms attached to a graphene sheet. We find that the pairwise RKKY interactions at distances of a few…

Strongly Correlated Electrons · Physics 2017-10-11 Pavel Buividovich , Dominik Smith , Maksim Ulybyshev , Lorenz von Smekal

Carrier-mediated exchange coupling, known as Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, plays a fundamental role in itinerant ferromagnetism and has great application potentials in spintronics. A recent theorem based on the…

Strongly Correlated Electrons · Physics 2015-05-13 J. E. Bunder , Hsiu-Hau Lin
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