331 citations · 1.8k across the 54 of their papers we have counts for
27 papers · 1 filter
Relativistic Effects in LaBi Thin Films
Reiley Dorrian, Sungmin Song, Jinwoong Kim +4
Chemical substitution in crystalline quantum materials is a powerful way to explore the consequences of strong spin-orbit coupling on their structural and electronic properties. In…
Stacking-Selective Epitaxy of Rare-Earth Diantimonides
Reiley Dorrian, Jinwoong Kim, Adrian Llanos +4
Deterministic control of the layering configuration of two-dimensional quantum materials plays a central role in studying their emergent electronic properties. Here we demonstrate…
Unveiling the Electronic, Transport, and Migration Properties of the Te-Defect Lattice in DyTe
Jinwoong Kim, Nicholas Kioussis
The rare-earth ditellurides are known to form two-dimensional square lattice where the strong Fermi surface nesting leads to structural modulation. In contrast to charge density wa…
Monoclinic LaSb Superconducting Thin Films
Adrian Llanos, Giovanna Campisi, Veronica Show +5
Rare-earth diantimondes exhibit coupling between structural and electronic orders which are tunable under pressure and temperature. Here we present the discovery of a new polymorph…
Supercell formation in epitaxial rare-earth ditelluride thin films
Adrian Llanos, Salva Salmani-Rezaie, Jinwoong Kim +3
Square net tellurides host an array of electronic ground states and commonly exhibit charge-density-wave ordering. Here we report the epitaxy of DyTe on atomically flat MgO…
First Principles Calculation of Dzyaloshinskii-Moriya Interaction: A Green's function Approach
Farzad Mahfouzi, Nicholas Kioussis
We present a Greens function approach to calculate the Dzyaloshinskii-Moriya interactions (DMI) from first principles electronic structure calculations, that is computationally mor…
Magnetoelastic and Magnetostrictive Properties of CoXAl Heusler Compounds
Farzad Mahfouzi, Gregory P. Carman, Nicholas Kioussis
We present a comprehensive first principles electronic structure study of the magnetoelastic and magnetostrictive properties in the Co-based CoXAl (X = V, Ti, Cr, Mn, Fe) full…
Novel Family of Topological Semimetals with Butterfly-like Nodal Lines
Xiaoting Zhou, Chuang-Han Hsu, Hugo Aramberri +6
In recent years, the exotic properties of topological semimetals (TSMs) have attracted great attention and significant efforts have been made in seeking for new topological phases…
Noncollinear Magnetic Modulation of Weyl Nodes in Ferrimagnetic MnGa
Cheng-Yi Huang, Hugo Aramberri, Hsin Lin +1
The tetragonal ferrimagnetic MnGa exhibits a wide range of intriguing magnetic properties. Here, we report the emergence of topologically nontrivial nodal lines in the absence…
Glide Symmetry Protected Higher-Order Topological Insulators from Semimetals with butterfly-like Nodal Lines
Xiaoting Zhou, Chuang-Han Hsu, Cheng-Yi Huang +5
Most topological insulators discovered today in spinful systems can be transformed from topological semimetals (TSMs) with vanishing bulk gap via introducing the spin-orbit couplin…
Stabilized Interfacial Ferromagnetism and Enhanced Magnetoelectric Properties of Ultrathin FeRh Films Capped with Heavy Transition Metal Ta
Guohui Zheng, Nicholas Kioussis
Thin FeRh film was extensively studied recently, and an emergent substrate- and capping-dependent interfacial ferromagnetism (FM) was widely observed in experiments. However, the v…
Giant Enhancement of Intrinsic Spin Hall Conductivity in Tungsten via Substitutional Doping
Xuelei Sui, Chong Wang, Jinwoong Kim +4
A key challenge in manipulating the magnetization in heavy-metal/ferromagnetic bilayers via the spin-orbit torque is to identify materials that exhibit an efficient charge-to-spin…
Weyl node assisted conductivity switch in interfacial phase change memory with van der Waals interfaces
Jinwoong Kim, Jeongwoo Kim, Young-Sun Song +3
The interfacial phase-change memory (iPCM) GeTe/Sb2Te3, promising candidates for the next generation non-volatile random-access memories, exhibits fascinating topological propertie…
Revealing the Hidden Structural Phases of FeRh
Jinwoong Kim, R. Ramesh, Nicholas Kioussis
electronic structure calculations reveal that tetragonal distortion has a dramatic effect on the relative stability of the various magnetic structures (C-…
An invisible non-volatile solid-state memory
J. Clarkson, C. Frontera, Z. Q. Liu +20
Information technologies require entangling data stability with encryption for a next generation of secure data storage. Current magnetic memories, ranging from low-density stripes…
GdN thin-film: Chern Insulating State on Square Lattice
Zhi Li, Jinwoong Kim, Nicholas Kioussis +6
Using first-principles calculations, we predict a Chern insulating phase in thin films of the ferromagnetic semi-metal GdN. In contrast to previously proposed Chern insulator candi…
Strain-induced topological insulator phase transition in HgSe
Lars Winterfeld, Luis A. Agapito, Jin Li +3
Using ab initio electronic structure calculations we investigate the change of the band structure and the nu_0 topological invariant in HgSe (non-centrosymmetric system) under two…
Voltage Dependence of Spin Transfer Torque in Magnetic Tunnel Junctions
M. Chshiev, I. Theodonis, A. Kalitsov +2
Theoretical investigations of spin transfer torque in magnetic tunnel junctions using the tight-binding model in the framework of non-equilibrium Green functions formalism are pres…
Evolution of magnetism of Cr nanoclusters on a Au(111) surface
H. J. Gotsis, Nicholas Kioussis, D. A. Papaconstantopoulos
We have carried out collinear and non-collinear electronic structure calculations to investigate the structural, electronic and magnetic properties of isolated Cr atoms, dimers and…
Impurity-induced tuning of quantum well states in spin-dependent resonant tunneling
A. Kalitsov, A. Coho, N. Kioussis +3
We report exact model calculations of the spin-dependent tunneling in double magnetic tunnel junctions in the presence of impurities in the well. We show that the impurity can tune…
Hydrogen-induced Unzipping of Single-Walled Carbon Nanotubes
Henry Scudder, Gang Lu, Nicholas Kioussis
The chemisorption of atomic hydrogen on the single-walled armchair carbon nanotube is studied with ab initio calculations. A single H atom is found to be chemisorbed on both the in…
A nonplanar Peierls-Nabarro model and its applications to dislocation cross-slip
Gang Lu, Vasily V. Bulatov, Nicholas Kioussis
A novel semidiscrete Peierls-Nabarro model is introduced which can be used to study dislocation spreading at more than one slip planes, such as dislocation cross-slip and junctions…
Dislocation constriction and cross-slip in Al and Ag: an ab initio study
Gang Lu, Vasily V. Bulatov, Nicholas Kioussis
A novel model based on the Peierls framework of dislocations is developed. The new theory can deal with a dislocation spreading at more than one slip planes. As an example, we stud…
Hydrogen-enhanced local plasticity in aluminum: an ab initio study
Gang Lu, Qing Zhang, Nicholas Kioussis +1
Dislocation core properties of Al with and without H impurities are studied using the Peierls-Nabarro model with parameters determined by ab initio calculations. We find that H not…