31 citations · 175 across the 16 of their papers we have counts for
7 papers · 1 filter
Chiral edge transport along domain walls in magnetic topological insulator nanoribbons
Nezhat Pournaghavi, Carlo M. Canali
Quantum anomalous Hall insulators are topologically characterized by non-zero integer Chern numbers, the sign of which depends on the direction of the exchange field that breaks ti…
Optimal field-free magnetization switching via spin-orbit torque on the surface of a topological insulator
Ivan P. Miranda, Grzegorz J. Kwiatkowski, Cecilia M. Holmqvist +6
We present an optimal field-free protocol for current-induced switching of a perpendicularly magnetized ferromagnetic insulator nanoelement on the surface of a topological insulato…
Non-collinear first-principles studies of the spin-electric coupling in frustrated triangular molecular magnets
M. F. Islam, Kushantha P. K. Withanage, C. M. Canali +1
Frustrated triangular molecular magnets (MMs) with anti-ferromagnetic ground states (GS) are an important class of magnetic systems with potential applications in quantum informati…
Non-local sidewall response and deviation from exact quantization of the topological magnetoelectric effect in axion-insulator thin films
Nezhat Pournaghavi, Anna Pertsova, Allan H. MacDonald +1
Topological insulator (TI) thin films with surface magnetism are expected to exhibit a quantized anomalous Hall effect (QAHE) when the magnetizations on the top and bottom surfaces…
Quantum Hall Edge States in Topological Insulator Nanoribbons
A. Pertsova, C. M. Canali, A. H. MacDonald
We present a microscopic theory of the chiral one-dimensional electron gas system localized on the sidewalls of magnetically-doped BiSe-family topological insulator nanorib…
Spin dynamics of Mn impurities and their bound acceptors in GaAs
M. R. Mahani, A. Pertsova, C. M. Canali
We present results of tight-binding spin-dynamics simulations of individual and pairs of substitutional Mn impurities in GaAs. Our approach is based on the mixed quantum-classical…
Chern number spins of Mn acceptor magnets in GaAs
T. O. Strandberg, C. M. Canali, A. H. MacDonald
We determine the effective total spin of local moments formed from acceptor states bound to Mn ions in GaAs by evaluating their magnetic Chern numbers. We find that when indivi…