672 citations · 3.1k across the 69 of their papers we have counts for
70 papers
Symmetry, Disorder and Transport Through Altermagnetic Quantum Dots and Their Antiferromagnetic Twins
George Kirczenow
Altermagnetic crystals resemble antiferromagnets in that they have no macroscopic magnetization, but unlike antiferromagnets they exhibit spin-split band structures. Here the trans…
How to Make a Pristine Tellurium Atomic Helix
George Kirczenow
Tellurium atomic helices are currently attracting increasing attention. However, to date individual tellurium atomic helices have only been grown encapsulated in host materials. A…
On the Nature of Tellurium Atomic Helices
George Kirczenow
A theoreticsal study of single, double and triple hydrogen-terminated chains of tellurium atoms is presented. Surprisingly, H-terminated single chains with 3 Te atoms per unit cell…
Strong Spin Filtering by Silicon Nanoparticles with Adsorbed Bismuth Atom Clusters: Role of Symmetry and Electrostatic Control of the Direction of the Spin Polarization
Alireza Saffarzadeh, George Kirczenow
We present a theoretical study, based on density functional theory and tight binding modeling, of the electronic structure and spin transport properties of silicon nanoparticles wi…
Nearly perfect spin-filtering in curved two-dimensional topological insulators
Alireza Saffarzadeh, George Kirczenow
The spintronic properties of curved nanostructures derived from two-dimensional topological insulators (2DTI's) are explored theoretically with density functional theory-based (DFT…
Mechanisms of jump to contact and conductance plateau formation in copper atomic junctions in vacuum and aqueous environments
Alireza Saffarzadeh, George Kirczenow
The interplay between groups of water molecules and single-atom contacts, as reflected in the electrical conductances and mechanical forces of copper atomic junctions, is explored…