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We investigate the interactions between two identical magnetic impurities substituted into a graphene superlattice. Using a first-principles approach, we calculate the electronic and magnetic properties for transition-metal substituted…

Motivated by a recent magnetization reversal experiment on a TbFeCo thin film, we study a topological excitation in the anisotropic nonlinear sigma model together with the Zeeman and magnetic dipole-dipole interactions. Dipole-dipole…

Strongly Correlated Electrons · Physics 2011-03-22 Motohiko Ezawa

In our publication from 8 years ago (Phys. Rev. B {\bf 84}, 115119 (2011)) we calculated RKKY interaction between two magnetic impurities adsorbed on graphene at zero temperature. We show in this short paper that the approach based on…

Mesoscale and Nanoscale Physics · Physics 2019-04-02 E. Kogan

Using the Landauer-B\"utikker formalism, we study the graphene magneto-transport in the presence of Rashba spin-orbit interaction (RSOI). We show that the angle resolved transmission probability in the proposed structures can be tuned by…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 Razieh Beiranvand , Hossein Hamzehpour

An anisotropic metallic phase dubbed electronic nematic phase bounded by two consecutive metamagnetic transitions has been reported in the bilayer ruthenate Sr3Ru2O7. It has also been shown that the nematic and the accompanying metamagnetic…

Strongly Correlated Electrons · Physics 2015-05-14 Christoph M. Puetter , Jeffrey G. Rau , Hae-Young Kee

We theoretically study the spatially anisotropic spin-1/2 kagome antiferromagnet with Dzyaloshinskii-Moriya (DM) interaction using a renormalization group analysis in the quasi-one-dimensional limit. We identify the various temperature and…

Strongly Correlated Electrons · Physics 2012-04-03 Vladimir A. Zyuzin , Gregory A. Fiete

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

In the presence of an external magnetic field, the optical response of two-dimensional materials, whose charge carriers behave as massless Dirac fermions with arbitrary anisotropic Fermi velocity, is investigated. Using Kubo formalism, we…

Mesoscale and Nanoscale Physics · Physics 2017-07-27 Maurice Oliva-Leyva , Chumin Wang

In our previous work (E. Kogan, Phys. Rev. B {\bf 84}, 115119 (2011)) we calculated RKKY interaction between two magnetic impurities in pristine graphene using the Green's functions (GF) in the coordinate -- imaginary time representation.…

Mesoscale and Nanoscale Physics · Physics 2013-01-29 E. Kogan

We study the RKKY interaction between two magnetic impurities located on same layer (intralayer case) or on different layers (interlayer case) in undoped bilayer graphene in the four-bands model, by directly calculating the Green functions…

Strongly Correlated Electrons · Physics 2015-09-10 Yawar Mohammadi , Rostam Moradian

Inducing sizable spin--orbit interactions in graphene by proximity effect is establishing as a successful route to harnessing two-dimensional Dirac fermions for spintronics. Semiconducting transition metal dichalcogenides (TMDs) are an…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 Manuel Offidani , Aires Ferreira

We explore spin and charge transport phenomena in two dimensional electron gas in presence of Rashba spin-orbit coupling connected to two ideal Ferromagnetic leads. In particular we show through a combination of analytical and numerical…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. P. Pareek

Spin-polarized supercurrents can be generated with magnetic inhomogeneity at a ferromagnet/spin-singlet-superconductor interface. In such systems, complex magnetic inhomogeneity makes it difficult to functionalise the spin-polarized…

Superconductivity · Physics 2019-11-04 M. S. Anwar , M. Kunieda , R. Ishiguro , S. R. Lee , C. Sow , J. W. A. Robinson , S. Yonezawa , T. W. Noh , Y. Maeno

Spin waves in ferromagnetic materials are predominantly characterized by right-handed circular polarization due to symmetry breaking induced by net magnetization. However, magnetic interactions, including the external magnetic field,…

Mesoscale and Nanoscale Physics · Physics 2025-07-21 Yutian Wang , Ruoban Ma , Jiang Xiao

Magnetic skyrmions, topologically protected spin textures, have emerged as promising candidates for next-generation spintronic applications. In this study, we investigate the stabilization of skyrmionic states in a uniquely engineered Pt/Co…

We propose an intrinsic spin scattering mechanism in graphene originated by the interplay of atomic spin-orbit interaction and the local curvature induced by flexural distortions of the atomic lattice. Starting from a multiorbital…

Mesoscale and Nanoscale Physics · Physics 2013-09-25 S. Fratini , D. Gosálbez-Martínez , P. Merodio Cámara , J. Fernández-Rossier

We study the Ruderman-Kittel-Kasuya-Yosida interaction between magnetic impurities embedded in $p$-doped transition metal dichalcogenide triangular flakes. The role of underlying symmetries is exposed by analyzing the interaction as a…

Mesoscale and Nanoscale Physics · Physics 2016-12-26 Oscar Ávalos-Ovando , Diego Mastrogiuseppe , Sergio E. Ulloa

We investigate theoretically the effect of a time dependent oscillating potential on the transport property of the Dirac Fermion through a monolayer graphene electrostatic barrier under the influence of the Rashba spin orbit interaction.…

Mesoscale and Nanoscale Physics · Physics 2015-08-13 R. Biswas , C. Sinha

We studied the exchange interactions mediated by polarized itinerant carriers in diluted magnetic semiconductor (DMS) junction. In contrast to the ordinary RKKY oscillations, the induced moment possesses an interesting spiral motion,…

Other Condensed Matter · Physics 2009-11-10 Shih-Jye Sun , Song-Shien Cheng , Hsiu-Hau Lin

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