Showing 2017 · cond-mat.mes-hallShow all

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cond-mat.mes-hall2017★ 149 cited

Lattice models with exactly solvable topological hinge and corner states

Flore K. Kunst, Guido van Miert, Emil J. Bergholtz

We devise a generic recipe for constructing -dimensional lattice models whose -dimensional boundary states, located on surfaces, hinges, corners, and so forth, can be obtaine…

cond-mat.mes-hall2017★ 75 cited

Bulk and edge spin transport in topological magnon insulators

Andreas Rückriegel, Arne Brataas, Rembert A. Duine

We investigate the spin transport properties of a topological magnon insulator, a magnetic insulator characterized by topologically nontrivial bulk magnon bands and protected magno…

cond-mat.mes-hall2017★ 45 cited

Excess charges as a probe of one-dimensional topological crystalline insulating phases

Guido van Miert, Carmine Ortix

We show that in conventional one-dimensional insulators excess charges created close to the boundaries of the system can be expressed in terms of the Berry phases associated with t…

cond-mat.mes-hall2017★ 7 cited

Magnon spin Hall magnetoresistance of a gapped quantum paramagnet

Camilo Ulloa, R. A. Duine

Motivated by recent experimental work, we consider spin transport between a normal metal and a gapped quantum paramagnet. We model the latter as the magnonic Mott-insulating phase…

cond-mat.mes-hall2017★ 38 cited

Green's function formalism for spin transport in metal-insulator-metal heterostructures

Jiansen Zheng, Scott Bender, Jogundas Armaitis +2

We develop a Green's function formalism for spin transport through heterostructures that contain metallic leads and insulating ferromagnets. While this formalism in principle allow…

cond-mat.mes-hall2017★ 42 cited

Theory of the Interfacial Dzyaloshinskii-Moriya Interaction in Rashba Antiferromagnets

Alireza Qaiumzadeh, Ivan A. Ado, Rembert A. Duine +2

In antiferromagnetic (AFM) thin films, broken inversion symmetry or coupling to adjacent heavy metals can induce Dzyaloshinskii-Moriya (DM) interactions. Knowledge of the DM parame…

cond-mat.mes-hall2017★ 13 cited

Scanning electron microscopy with polarization analysis for multilayered chiral spin textures

Juriaan Lucassen, Fabian Kloodt-Twesten, Robert Frömter +5

We show that scanning electron microscopy with polarization analysis (SEMPA) that is sensitive to both in-plane magnetization components can be used to image the out-of-plane magne…

cond-mat.mes-hall2017★ 8 cited

Theory of magnon-mediated tunnel magneto-Seebeck effect

Benedetta Flebus, Gerrit E. W. Bauer, Rembert A. Duine +1

The tunnel magneto-Seebeck effect is the dependence of the thermopower of magnetic tunnel junctions on the magnetic configuration. It is conventionally interpreted in terms of a th…

cond-mat.mes-hall2017★ 25 cited

Piezospintronic effect in honeycomb antiferromagnets

Camilo Ulloa, Roberto E. Troncoso, Scott A. Bender +2

The emission of pure spin currents by mechanical deformations, the piezospintronic effect, in antiferromagnets is studied. We characterize the piezospintronic effect in an antiferr…

cond-mat.mes-hall2017★ 18 cited

A topological quantum pump in serpentine-shaped semiconducting narrow channels

Sudhakar Pandey, Niccolo' Scopigno, Paola Gentile +2

We propose and analyze theoretically a one-dimensional solid-state electronic setup that operates as a topological charge pump in the complete absence of superimposed oscillating l…

cond-mat.mes-hall2017★ 21 cited

Spin switching via quantum dot spin valves

N. M. Gergs, S. A. Bender, R. A. Duine +1

We develop a theory for spin transport and magnetization dynamics in a quantum-dot spin valve, i.e., two magnetic reservoirs coupled to a quantum dot. Our theory is able to take in…

cond-mat.mes-hall2017★ 22 cited

Anisotropic chiral magnetic effect from tilted Weyl cones

E. C. I. van der Wurff, H. T. C. Stoof

We determine the antisymmetric current-current response for a pair of (type I) tilted Weyl cones with opposite chirality. We find that the dynamical chiral magnetic effect depends…

cond-mat.mes-hall2017★ 20 cited

Negative electronic compressibility and nanoscale inhomogeneity in ionic-liquid gated two-dimensional superconductors

G. Dezi, N. Scopigno, S. Caprara +1

When the electron density of highly crystalline thin films is tuned by chemical doping or ionic liq- uid gating, interesting effects appear including unconventional superconductivi…

cond-mat.mes-hall2017★ 19 cited

Disorder in tilted Weyl semimetals from a renormalization group perspective

Tycho S. Sikkenk, Lars Fritz

Isolated Weyl cones in a disordered environment do not show the phenomenon of Anderson localization due to the abscence of backscattering processes. However, besides the convention…

cond-mat.mes-hall2017★ 5 cited

Synthesizing Weyl semimetals in weak topological insulator and topological crystalline insulator multilayers

Alexander Lau, Carmine Ortix

We propose a different route to time-reversal invariant Weyl semimetals employing multilayer heterostructures comprising ordinary "trivial" insulators and nontrivial insulators wit…

cond-mat.mes-hall2017★ 18 cited

Modification of the Lifshitz-Kosevich formula for anomalous quantum oscillations in inverted insulators

Simonas Grubinskas, Lars Fritz

It is generally believed that quantum oscillations are a hallmark of a Fermi surface and the oscillations constitute the ringing of it. Recently, it was understood that in order to…

cond-mat.mes-hall2017★ 39 cited

Theoretical prediction of a giant anisotropic magnetoresistance in carbon nanoscrolls

Ching Hao Chang, Carmine Ortix

Snake orbits are trajectories of charge carriers curving back and forth which form at an interface where either the magnetic field direction or the charge carrier type are inverted…

cond-mat.mes-hall2017★ 125 cited

Magnon-polaron transport in magnetic insulators

Benedetta Flebus, Ka Shen, Takashi Kikkawa +5

We theoretically study the effects of strong magnetoelastic coupling on the transport properties of magnetic insulators. We develop a Boltzmann transport theory for the mixed magno…

cond-mat.mes-hall2017★ 56 cited

Enhanced Spin Conductance of a Thin-Film Insulating Antiferromagnet

Scott A. Bender, Hans Skarsvåg, Arne Brataas +1

We investigate spin transport by thermally excited spin waves in an antiferromagnetic insulator. Starting from a stochastic Landau-Lifshitz-Gilbert phenomenology, we obtain the out…

cond-mat.mes-hall2017★ 44 cited

Generic coexistence of Fermi arcs and Dirac cones on the surface of time-reversal invariant Weyl semimetals

Alexander Lau, Klaus Koepernik, Jeroen van den Brink +1

The hallmark of Weyl semimetals is the existence of open constant-energy contours on their surface -- the so-called Fermi arcs -- connecting Weyl points. Here, we show that for tim…