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We investigate the Ruderman-Kittel-Kasuya-Yosida oscillations of the itinerant carrier spin density in a system where those oscillations appear only due to a finite distribution of a localized spin. The system represents a half-infinite…

Mesoscale and Nanoscale Physics · Physics 2010-06-23 Sergey Smirnov

We investigate the effective couplings induced between localized impurities on the surface of a Weyl semimetal (WSM) nanowire within the framework of Ruderman--Kittel--Kasuya--Yosida (RKKY) theory. The itinerant electrons from the chiral…

Mesoscale and Nanoscale Physics · Physics 2025-10-14 Rohit Mukherjee , Asutosh Dubey

We calculated the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between the magnetic impurities mediated by electrons in nanoribbons. It was shown that the RKKY interaction is strongly dependent on the width of the nanoribbon and the…

Mesoscale and Nanoscale Physics · Physics 2013-04-08 Shuo Mi , Shuo-Hong Yuan , Pin Lyu

We show theoretically that the magnetic ions, randomly distributed in a two-dimensional (2D) semiconductor system, can generate a ferromagnetic long-range order via the RKKY interaction. The main physical reason is the discrete (rather than…

Materials Science · Physics 2021-09-22 V. A. Stephanovich , E. V. Kirichenko , G. Engel , Yu. G. Semenov , K. W. Kim

The carrier-mediated RKKY interaction between local spins plays an important role for the application of magnetically doped graphene in spintronics and quantum computation. Previous studies largely concentrate on the influence of electronic…

Mesoscale and Nanoscale Physics · Physics 2017-08-10 Shu-Hui Zhang , Jia-Ji Zhu , Wen Yang , Kai Chang

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

The ease with which the physical properties of graphene can be tuned suggests a wide range of possible applications. Recently, strain engineering of these properties has been of particular interest. Possible spintronic applications of…

Mesoscale and Nanoscale Physics · Physics 2012-11-21 S. R. Power , P. D. Gorman , J. M. Duffy , M. S. Ferreira

We have performed low-temperature transport measurements on a double quantum dot-quantum wire coupled device and demonstrated non-local control of the Kondo effect in one dot by manipulating the electronic spin states of the other. We…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 S. Sasaki , S. Kang , K. Kitagawa , M. Yamaguchi , S. Miyashita , T. Maruyama , H. Tamura , T. Akazaki , Y. Hirayama , H. Takayanagi

The interplay between the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction and the Kondo effect is expected to provide the driving force for the emergence of many phenomena in strongly correlated electron materials. Two magnetic impurities…

We study the Ruderman-Kittel-Kasuya-Yosida effective exchange interaction between magnetic impurities embedded on the edges of transition-metal dichalcogenide flakes, using a three-orbital tight-binding model. Electronic states lying midgap…

Mesoscale and Nanoscale Physics · Physics 2016-12-02 Oscar Ávalos-Ovando , Diego Mastrogiuseppe , Sergio E. Ulloa

We study spin configurations of classical magnetic impurities placed close to the edge of a two-dimensional topological superconductor both analytically and numerically. First, we demonstrate that the spin of a single magnetic impurity…

Mesoscale and Nanoscale Physics · Physics 2023-04-18 Katharina Laubscher , Dmitry Miserev , Vardan Kaladzhyan , Daniel Loss , Jelena Klinovaja

We study the Kondo lattice model with the Heisenberg-type RKKY-exchange coupling among localized f-spins in the presence of a magnetic field. By means of an extended dynamical mean field theory combined with the non-crossing approximation,…

Strongly Correlated Electrons · Physics 2009-11-11 Takuma Ohashi , Sei-ichiro Suga , Norio Kawakami

We study the RKKY interaction mediated by the helical edge states of a quantum spin Hall insulator in the presence of the Rashba spin-orbital coupling induced by an external electric field and the electron-electron interaction. We show that…

Mesoscale and Nanoscale Physics · Physics 2015-02-05 Yu-Wen Lee , Yu-Li Lee

In this letter, we demonstrate switching of nanomagnets through RKKY interactions in topological insulator-based magnetoelectric devices. The switching speed is dependent on the size of the ferromagnets.

Mesoscale and Nanoscale Physics · Physics 2016-02-24 Bahniman Ghosh , Urmimala Roy , Rik Dey , Tanmoy Pramanik , Leonard F. Register , Sanjay K. Banerjee

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 consider the spin dynamics of a normal metal-ferromagnet heterostructure, with emphasis on spin-nutation terms arising from a dynamical Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction. We find that the spin-nutation term is anisotropic…

Mesoscale and Nanoscale Physics · Physics 2025-04-30 Christian Svingen Johnsen , Asle Sudbø

Inspired by the recent discovery of metallic spin supersolidity and its giant magnetocaloric effect in the rare-earth alloy EuCo$_2$Al$_9$ [Nature 651, 61 (2026)], we perform a combined study through electronic structure analysis, effective…

Strongly Correlated Electrons · Physics 2026-03-26 Ning Xi , Xitong Xu , Guoliang Wu , Mingfang Shu , Hao Chen , Yuan Gao , Zhentao Wang , Gang Su , Jie Ma , Zhe Qu , Xi Chen , Wei Li

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

Altermagnets, characterized by time-reversal symmetry breaking without net magnetization and momentum-dependent spin-split bands, offer a promising platform for spintronics due to their anisotropic spin textures and potential for tunable…

Materials Science · Physics 2026-04-28 Bui D. Hoi

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