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相关论文: Ruderman-Kittel-Kasuya-Yosida interactions on a bi…

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Carrier-mediated Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction plays an important role in itinerant magnetism. There have been intense interest on its general trend on bipartite lattice with particle-hole symmetry. In particular,…

介观与纳米尺度物理 · 物理学 2014-11-25 Tsung-Cheng Lu , Hsiu-Hau Lin

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…

介观与纳米尺度物理 · 物理学 2024-09-02 Mahmoud M. Asmar , Wang-Kong Tse

A form of an indirect Ruderman-Kittel-Kasuya-Yosida (RKKY)-like coupling between magnetic on-site impurities in armchair graphene nanoribbons is studied theoretically. The calculations are based on a tight-binding model for a finite…

介观与纳米尺度物理 · 物理学 2013-04-05 Karol Szałowski

We study Rudermann-Kittel-Kasuya-Yosida (RKKY) interaction in carbon nanotubes (CNTs) and graphene nanoribbons in the presence of spin orbit interactions and magnetic fields. For this we evaluate the static spin susceptibility tensor in…

介观与纳米尺度物理 · 物理学 2013-02-04 Jelena Klinovaja , Daniel Loss

We investigate magnetic order in a lattice of classical spins coupled to an isotropic gas of one-dimensional (1d) conduction electrons via local exchange interactions. The frequently discussed Ruderman-Kittel-Kasuya-Yosida (RKKY) effective…

介观与纳米尺度物理 · 物理学 2016-08-31 Michael Schecter , Mark S. Rudner , Karsten Flensberg

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…

强关联电子 · 物理学 2020-09-30 Sabyasachi Tarat , Jian Li , Richard T. Scalettar , Rubem Mondaini

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…

介观与纳米尺度物理 · 物理学 2025-09-16 Anirban Kundu

The two dimensionality plus the linear band structure of graphene leads to new behavior of the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, which is the interaction between two magnetic moments mediated by the electrons of the host…

介观与纳米尺度物理 · 物理学 2012-08-13 M. Sherafati , S. Satpathy

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…

介观与纳米尺度物理 · 物理学 2010-06-23 Sergey Smirnov

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…

强关联电子 · 物理学 2011-10-14 Alireza Akbari , Ilya Eremin , Peter Thalmeier

Of fundamental interest in the field of spintronics is the mechanism of indirect exchange coupling between magnetic impurities embedded in metallic hosts. A range of physical features, such as magnetotransport and overall magnetic moment…

介观与纳米尺度物理 · 物理学 2015-01-22 Paul D. Gorman , John M. Duffy , Stephen R. Power , Mauro S. Ferreira

We investigate the long-range behavior and size dependence of the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in hexagonal and triangular graphene nanoflakes with zigzag and arm-chair edges. We employ the tight-binding model with exact…

介观与纳米尺度物理 · 物理学 2023-12-12 Ahmet Utku Canbolat , Ozgur Cakir

The indirect Ruderman-Kittel-Kasuya-Yosida (RKKY) coupling between on-site magnetic impurities is studied for two kinds of graphene nanoflakes consisting of approximately 100 carbon atoms, posessing either zigzag or armchair edge. The…

介观与纳米尺度物理 · 物理学 2014-06-17 Karol Szałowski

Magnetically-doped graphene systems are potential candidates for application in future spintronic devices. A key step is to understand the pairwise interactions between magnetic impurities embedded in graphene that are mediated by the…

介观与纳米尺度物理 · 物理学 2013-02-04 Stephen R. Power , Mauro S. Ferreira

The interaction between two impurity spins provides vital information about the host system and has been suggested to form a building block in quantum computation and spintronic devices. We here determine this Ruderman-Kittel-Kasuya-Yosida…

介观与纳米尺度物理 · 物理学 2024-09-04 Morten Amundsen , Arne Brataas , Jacob Linder

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…

介观与纳米尺度物理 · 物理学 2018-12-05 R. Cacilhas , S. Vojkovic , V. L. Carvalho-Santos , E. B. Carvalho , A. R. Pereira , D. Altbir , Á. S. Núñez

Materials with a large magnetocaloric response are highly desirable for magnetic cooling applications. It is suggested that a strong spin-lattice coupling tends to generate a large magnetocaloric effect, but no microscopic mechanism has…

材料科学 · 物理学 2024-03-06 Lokanath Patra , Bolin Liao

We calculate the indirect charge carrier mediated Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between magnetic impurities for two selected graphene nanoflakes containing four hexagonal rings in their structure, differing by their…

介观与纳米尺度物理 · 物理学 2011-11-15 Karol Szałowski

The Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction of magnetic impurities in a superconductor exponentially decreases when the distance $r$ between them is larger than the superconductor's coherence length, because this interaction is…

超导电性 · 物理学 2018-09-10 A. G. Mal'shukov

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…

介观与纳米尺度物理 · 物理学 2023-02-15 Anirban Kundu , M. B. A. Jalil
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