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Related papers: Selective generation and amplification of RKKY int…

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We show that the paradigmatic Ruderman-Kittel-Kasuya-Yosida (RKKY) description of two local magnetic moments coupled to propagating electrons breaks down in helical Luttinger Liquids when the electron interaction is stronger than some…

Strongly Correlated Electrons · Physics 2018-04-10 Oleg M. Yevtushenko , Vladimir I. Yudson

We present the effective low-energy theory for interacting 1D quantum wires subject to Rashba spin-orbit coupling. Under a one-loop renormalization group scheme including all allowed interaction processes for not too weak Rashba coupling,…

Mesoscale and Nanoscale Physics · Physics 2009-06-03 Andreas Schulz , Alessandro De Martino , Philip Ingenhoven , Reinhold Egger

A new formalism to investigate RKKY interaction in aperiodic materials is presented. Particularly useful in the tight-binding scheme, it is used in this paper to probe the role of local environment and long range quasiperiodic potential on…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Stephan Roche , Didier Mayou

We study the competition between the RKKY quadratic and biquadratic spin-spin interactions of two magnetic impurities in twisted bilayer graphene away from the magic angle. We apply the Bistritzer-MacDonald model of two graphene layers…

Mesoscale and Nanoscale Physics · Physics 2025-09-24 D. O. Oriekhov , T. T. Osterholt , R. A. Duine , V. P. Gusynin

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

Resistivity minima are commonly seen in itinerant magnets and they are often attributed to the Kondo effect. However, recent experiments are revealing an increasing number of materials showing resistivity minima in the absence of…

Strongly Correlated Electrons · Physics 2020-05-29 Zhentao Wang , Cristian D. Batista

We study RKKY interaction in non-Fermi liquid metals. We find that the RKKY interaction mediated by non-Fermi liquid metals can be of much longer range than for a Fermi liquid. The oscillatory nature of RKKY interaction thus becomes more…

Strongly Correlated Electrons · Physics 2013-07-04 Jian-Huang She , A. R. Bishop

We develop the theory of conductance of a quantum dot which carries a spin and is coupled via RKKY interaction to another spin-carrying quantum dot. The found dependence of the differential conductance on bias and magnetic field at fixed…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. G. Vavilov , L. I. Glazman

Magnetic impurities embedded in a metal interact via an effective Ruderman-Kittel-Kasuya-Yosida (RKKY) coupling mediated by the conduction electrons, which is commonly assumed to be long ranged, with an algebraic decay in the inter-impurity…

Strongly Correlated Electrons · Physics 2015-03-05 Andrew Allerdt , C. A. Busser , G. B. Martins , A. E. Feiguin

The processional switching mechanism governs magnetic switching in magnetic tunnel junctions (MTJs) in the sub-nanosecond range, which limits the application of spin transfer torque magnetic random access memory (STT-MRAM) in the ultrafast…

Mesoscale and Nanoscale Physics · Physics 2021-06-30 Lei Wang , Runzi Hao , Tai Min

We study the effects of intersite RKKY-like interactions in the mixed valence regime of a two-band extended Hubbard model. This model is known to display a metallic non-Fermi liquid state with spin-charge separation in the standard…

Strongly Correlated Electrons · Physics 2008-02-03 J. Lleweilun Smith , Qimiao Si

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 consider Mn-doped bulk zinc-blende semiconductors described by the 4 $ \times$ 4 Luttinger Hamiltonian. In these semiconductors, Mn atom acts as an acceptor providing the system a mobile hole, and also acts like a magnetic impurity of…

Mesoscale and Nanoscale Physics · Physics 2019-06-24 Sonu Verma , Arijit Kundu , Tarun Kanti Ghosh

We theoretically investigate the features of Ruderman-Kittel-Kasuya-Yosida (RKKY) exchange interaction between two magnetic impurities, mediated by the interfacial bound states inside a domain wall (DW). The latter separates the two regions…

Mesoscale and Nanoscale Physics · Physics 2021-03-17 Ganesh C. Paul , SK Firoz Islam , Paramita Dutta , Arijit Saha

Motivated by the recent upsurge in research of three-dimensional topological semimetals (SMs), we theoretically study the RKKY interaction between magnetic impurities in node-line SMs with and without the chirality and obtain the analytical…

Strongly Correlated Electrons · Physics 2022-03-22 Zhong-Yi Wang , Da-Yong Liu , Liang-Jian Zou

We describe a nonlinear interaction between charge currents and spin currents which arises from the energy dependence of the conductivity. This allows nonmagnetic contacts to be used for measuring and controlling spin signals. We choose…

Mesoscale and Nanoscale Physics · Physics 2012-01-04 I. J. Vera-Marun , V. Ranjan , B. J. van Wees

Topological superconductors are foreseen as good candidates for the search of Majorana zero modes, where they appear as edge states and can be used for quantum computation. In this context, it becomes necessary to study the robustness and…

Mesoscale and Nanoscale Physics · Physics 2025-02-14 Dunkan Martínez , Álvaro Díaz-Fernández , Pedro A Orellana , Francisco Domínguez-Adame

We theoretically study decoherence of two localized spins interacting via the RKKY interaction in one-, two-, and three-dimensional electron gas. We derive the kinetic equation for the reduced density matrix of the localized spins and show…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Yoshiaki Rikitake , Hiroshi Imamura

On the efforts of enhancing the spin orbit interaction (SOI) of graphene for seeking the dissipationless quantum spin Hall devices, unique Kane-Mele type SOI and high mobility samples are desired. However, common external decoration often…

Mesoscale and Nanoscale Physics · Physics 2021-02-01 Zhanbin Bai , Rui Wang , Yazhou Zhou , Tianru Wu , Jianlei Ge , Jing Li , Yuyuan Qin , Fucong Fei , Lu Cao , Xuefeng Wang , Xinran Wang , Shuai Zhang , Liling Sun , You Song , Fengqi Song

In this paper, we investigate the Kane-Mele model and endeavor to demonstrate, through analytical calculations, how the presence of topological edge states influences the RKKY interaction. We illustrate that the effect diminishes as one…

Mesoscale and Nanoscale Physics · Physics 2023-12-19 Y. Alsayyid J. Ahmadi M. Soltani G. Rashedi Z. Noorinejad