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6 papers · 2 filters
Network model for higher-order topological phases
Hui Liu, Selma Franca, Ali G. Moghaddam +2
We introduce a two-dimensional network model that realizes a higher-order topological phase (HOTP). We find that in the HOTP the bulk and boundaries of the system are gapped, and a…
Topological and non-topological features of generalized Su-Schrieffer-Heeger models
N. Ahmadi, J. Abouie, D. Baeriswyl
The (one-dimensional) Su-Schrieffer-Heeger Hamiltonian, augmented by spin-orbit coupling and longer-range hopping, is studied at half filling for an even number of sites. The groun…
Highly Tunable Spin-Orbit Torque and Anisotropic Magnetoresistance in a Topological Insulator Thin Film Attached to Ferromagnetic Layer
Ali G. Moghaddam, Alireza Qaiumzadeh, Anna Dyrdał +1
We investigate spin-charge conversion phenomena in hybrid structures of topological insulator (TI) thin films and magnetic insulators. We find an anisotropic inverse spin-galvanic…
Anisotropic RKKY interactions mediated by quasiparticles in half-Heusler topological semimetal
Reza G. Mohammadi, Ali G. Moghaddam
We theoretically explore the RKKY interaction mediated by spin-3/2 quasiparticles in half-Heusler topological semimetals in quasi-two-dimensional geometries. We find that while the…
Thermoelectric response of nodal-line semimetals: probe of the Fermi surface topology
Shahin Barati, Saeed H. Abedinpour
We investigate the low-temperature thermoelectric properties of three-dimensional nodal-line semimetals within the semiclassical Boltzmann formalism. Considering short-range intera…
Transport in two dimensional Rashba electron systems doped with interacting magnetic impurities
A. N. Zarezad, J. Abouie
We study the transport properties of two dimensional electron systems with strong Rashba spin-orbit coupling (SOC) doped with interacting magnetic impurities. Interactions between…