975 citations · 1.7k across the 24 of their papers we have counts for
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Topological Hall-like behavior of multidomain ferromagnets
Houssam Sabri, Benjamin E. Carlson, Sergey S. Pershoguba +1
We investigate the emergence of topological Hall-like (THE-like) signals in disordered multidomain ferromagnets. Non-monotonic behavior in Hall resistivity, commonly attributed to…
Experimental observation of one-dimensional motion of interstitial skyrmion in FeGe
Dongsheng Song, Weiwei Wang, Jie-Xiang Yu +11
The interplay between dimensionality and topology manifests in magnetism via both exotic texture morphology and novel dynamics. A free magnetic skyrmion exhibits the skyrmion Hall…
Hall Effect Induced by Topologically Trivial Target Skyrmions
Tan Dao, Sergey S. Pershoguba, Jiadong Zang
Electrons moving through a noncoplanar magnetic texture acquire a Berry phase, which can be described as an effective magnetic field. This effect is known as the topological Hall e…
Direct current in a stirred optical lattice
Sergey S. Pershoguba, Victor M. Yakovenko
We study how the energy dispersion of bosonic atoms loaded into an optical lattice becomes modified due to periodic circular stirring of the lattice to the second order in the stre…
Optical control of topological memory based on orbital magnetization
Sergey S. Pershoguba, Victor M. Yakovenko
Under suitable conditions, some twisted graphene multilayers and transition-metal dichalcogenides become Chern insulators, exhibiting the anomalous quantum Hall effect and orbital…
Electronic scattering off a magnetic hopfion
Sergey S. Pershoguba, Domenico Andreoli, Jiadong Zang
We study scattering of itinerant electrons off a magnetic hopfion in a three-dimensional metallic magnet described by a magnetization vector . A hopfion is a…
Current distribution in a slit connecting two graphene half-planes
Sergey S. Pershoguba, Andrea F. Young, Leonid I. Glazman
We investigate the joint effect of viscous and Ohmic dissipation on electric current flow through a slit in a barrier dividing a graphene sheet in two. In the case of the no-slip b…
Thermopower and thermal conductance of a superconducting quantum point contact
Sergey S. Pershoguba, Leonid I. Glazman
We find the charge and heat currents caused by a temperature difference applied to a superconducting point contact or to a quantum point contact between a superconducting and norma…
Skyrmion-induced subgap states in p-wave superconductors
Kim Pöyhönen, Alex Westström, Sergey S. Pershoguba +2
In s-wave systems, it has been theoretically shown that a ferromagnetic film hosting a skyrmion can induce a bound state embedded in the opposite-spin continuum. In this work, we c…
Effects of a tilted magnetic field in a Dirac double layer
Sergey S. Pershoguba, D. S. L. Abergel, Victor M. Yakovenko +1
We calculate the energy spectrum of a Dirac double layer, where each layer has the Dirac electronic dispersion, in the presence of a tilted magnetic field and small interlayer tunn…
Spin-polarized tunneling current through a thin film of topological insulator in a parallel magnetic field
Sergey S. Pershoguba, Victor M. Yakovenko
We calculate the tunneling conductance σbetween the surface states on the opposite sides of the ultra-thin film of a topological insulator in a parallel magnetic field B_y. The par…
Energy spectrum of graphene multilayers in a parallel magnetic field
Sergey S. Pershoguba, Victor M. Yakovenko
We study the orbital effect of a strong magnetic field parallel to the layers on the energy spectrum of the Bernal-stacked graphene bilayer and multilayers, including graphite. We…