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We study collective excitations in a helical electron liquid on a surface of three-dimensional topological insulator. Electron in helical liquid obeys Dirac-like equation for massless particless and direction of its spin is strictly…

Mesoscale and Nanoscale Physics · Physics 2012-07-10 D. K. Efimkin , Yu. E. Lozovik , A. A. Sokolik

Magnetic molecules have played a central role in the development of magnetism and coordination chemistry and their study keeps leading innovation in cutting-edge scientific fields such as magnetic resonance, magnetism, spintronics, and…

Materials Science · Physics 2022-02-09 Alessandro Lunghi

We present a comprehensive study of the polarization and spatial coherence properties of the lasing modes supported by a 4-fold symmetric plasmonic lattice. By modifying only, the scattering properties of the individual particles while…

Spin-dependent dispersion and Rashba effect are manifestations of universal spin orbit interaction associated with the breaking of the spatial inversion symmetry in condensed matter and in optical systems. In sharp contrast to this, we…

We consider relaxation of a rigid spin cluster in an elastic medium in the presence of the magnetic field. Universal simple expression for spin-phonon matrix elements due to local rotations of the lattice is derived. The equivalence of the…

Statistical Mechanics · Physics 2008-05-05 E. M. Chudnovsky , D. A. Garanin , R. Schilling

Spin-flip mechanism in Ag nanowires with MgO surface protection layers has been investigated by means of nonlocal spin valve measurements using Permalloy/Ag lateral spin valves. The spin flip events mediated by surface scattering are…

Mesoscale and Nanoscale Physics · Physics 2012-09-14 H. Idzuchi , Y. Fukuma , L. Wang , Y. Otani

Transverse spin of surface waves is a universal phenomenon which has recently attracted significant attention in optics and acoustics. It appears in gravity water waves, surface plasmon-polaritons, surface acoustic waves, and exhibits…

It is widely admitted that the helical conformation of certain chiral molecules may induce a sizable spin selectivity observed in experiments. Spin selectivity arises as a result of the interplay between a helicity-induced spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2018-05-23 E. Diaz , P. Albares , P. G. Estevez , J. M. Cervero , C. Gaul , E. Diez , F. Dominguez-Adame

Plasmonic systems have attracted remarkable interest due to their application to the subwavelength confinement of light and the associated enhancement of light-matter interactions. However, this requires light to dwell at a given spatial…

Optics · Physics 2020-04-22 Lizhen Lu , Emanuele Galiffi , Kun Ding , Tianyu Dong , Xikui Ma , John Pendry

The properties of an F=1 spinor Bose-Einstein condensate trapped in a double-well potential are discussed using both a mean-field two-mode approach and a simplified two-site Bose-Hubbard Hamiltonian. We focus in the region of phase space in…

In two-dimensional (2D) metallic kagome lattice materials, destructive interference of electronic hopping pathways around the kagome bracket can produce nearly localized electrons, and thus electronic bands that are flat in momentum space.…

The spin orbit interactions (SOI) of light mediated by single scattering from plasmon resonant metal nanoparticles (nanorods and nanospheres) are investigated using explicit theory based on Jones and Stokes-Mueller polarimetry formalism.…

We propose a plasmonic device consisting of a concentric ring grating acting as an efficient tool for directional launching and detection of surface plasmon-polaritons (SPPs). Numerical simulations and optical characterizations are used to…

Mesoscale and Nanoscale Physics · Physics 2016-01-05 N. Rahbany , W. Geng , R. Salas-Montiel , S. de la Cruz , E. R. Méndez , S. Blaize , R. Bachelot , C. Couteau

Understanding the drift motion and dynamical locking of crystalline clusters on patterned substrates is important for the diffusion and manipulation of nano- and micro-scale objects on surfaces. In a previous work, we studied the…

Soft Condensed Matter · Physics 2021-04-16 Xin Cao , Emanuele Panizon , Andrea Vanossi , Nicola Manini , Erio Tosatti , Clemens Bechinger

In quantum spin liquids, fractional spinon excitations carry half-integer spins and other fractional quantum numbers of lattice and time-reversal symmetries. Different patterns of symmetry fractionalization distinguish different spin liquid…

Strongly Correlated Electrons · Physics 2018-03-21 Yang Qi , Meng Cheng

We address evolution of a spinor polariton condensate in radially periodic potentials. Such potentials allow for the observation of novel nonlinear excitations and support a variety of dynamically stable soliton states never demonstrated…

Mesoscale and Nanoscale Physics · Physics 2019-03-13 Dmitry A. Zezyulin , Yaroslav V. Kartashov , Dmitry V. Skryabin , Ivan A. Shelykh

Observation of surface-plasmon phenomena that are dependent upon the handedness of the circularly polarized incident light (spin) is presented. The polarization-dependent near-field intensity distribution obtained in our experiment is…

Optics · Physics 2008-08-01 Y. Gorodetski , A. Niv , V. Kleiner , E. Hasman

We study the topological properties of a kagome plasmonic metasurface, modelled with a coupled dipole method which naturally includes retarded long range interactions. We demonstrate the system supports an obstructed atomic limit phase…

Mesoscale and Nanoscale Physics · Physics 2021-03-05 Matthew Proctor , María Blanco de Paz , Dario Bercioux , Aitzol García-Etxarri , Paloma Arroyo Huidobro

In spin-orbit coupled crystals, symmetries can protect multifold degeneracies with large Chern numbers and Brillouin zone spanning topological surface states. In this work, we explore the extent to which the nontrivial topology of chiral…

Mesoscale and Nanoscale Physics · Physics 2022-12-14 Mao Lin , Iñigo Robredo , Niels B. M. Schröter , Claudia Felser , Maia G. Vergniory , Barry Bradlyn

The emergence of spin-polarized currents in nonrelativistic platforms continues to attract significant interest in spintronics. Here we demonstrate that a noncollinear kagome antiferromagnet can generate an alternating out-of-plane spin…

Mesoscale and Nanoscale Physics · Physics 2026-04-14 Ousmane Ly , Satoru Hayami