9 papers
Half and quarter metals in rhombohedral trilayer graphene
Haoxin Zhou, Tian Xie, Areg Ghazaryan +8
Ferromagnetism is most common in transition metal compounds but may also arise in low-density two-dimensional electron systems, with signatures observed in silicon, III-V semicondu…
Interplay between friction and spin-orbit coupling as a source of spin polarization
Artem G. Volosniev, Hen Alpern, Yossi Paltiel +3
We study an effective one-dimensional quantum model that includes friction and spin-orbit coupling (SOC), and show that the model exhibits spin polarization when both terms are fin…
Filtering Spins by Scattering from a Lattice of Point Magnets
Areg Ghazaryan, Mikhail Lemeshko, Artem G. Volosniev
Nature creates electrons with two values of the spin projection quantum number. In certain applications, it is important to filter electrons with one spin projection from the rest.…
An analytic model of chiral-induced spin selectivity
Areg Ghazaryan, Yossi Paltiel, Mikhail Lemeshko
Organic materials are known to feature long spin-diffusion times, originating in a generally small spin-orbit coupling observed in these systems. From that perspective, chiral mole…
A Quantum Impurity Model for Anyons
Enderalp Yakaboylu, Areg Ghazaryan, Douglas Lundholm +3
One of the hallmarks of quantum statistics, tightly entwined with the concept of topological phases of matter, is the prediction of anyons. Although anyons are predicted to be real…
Effect of Zeeman coupling on the Majorana vortex modes in iron-based topological superconductors
Areg Ghazaryan, Pedro L. S. Lopes, Pavan Hosur +2
In the superconducting regime of FeTeSe, there exist two types of vortices which are distinct by the presence or absence of zero energy states in their core. To under…