12 citations · 23 across the 10 of their papers we have counts for
12 papers
Magnetic Order from First-Principles Linear Response
Yaroslav Zhumagulov, Emiliano Cruz-Aranda, Denis Kochan +1
The magnetic order of a material is usually predicted by comparing the energies of trial spin configurations, a strategy that cannot reach orders outside the chosen set and rapidly…
Quantum transport across normal-superlattice-normal graphene junctions: Fabry-Pérot interference, Hofstadter butterfly, and supersnake states
Che-Pin Hsu, Alina Mreńca-Kolasińska, Aitor Garcia-Ruiz +4
Electrostatic modulation of graphene provides a tunable route to engineering miniband structures. We perform quantum transport simulations on a gate-defined graphene superlattice j…
Spin modulations in the Rashba-Hubbard chain -- a tensor network study
Jozef Genzor, Roman Krčmár, Andrej Gendiar +2
Uniform spin-orbit coupling in an open single-band Hubbard chain is an exactly removable \(SU(2)\) gauge field at the Hamiltonian level, but not at the level of laboratory-frame sp…
Efficient Magnetic Spin-Filtering and Persistent Spin-Currents in Lifshitz-Transitioned Altermagnets: A Route to Open-Orbit Spintronics
Wun-Hao Kang, Yu-Ting Hsiao, Jozef Genzor +3
Altermagnets offer a unique venue for spin transport due to their vanishing net magnetization and momentum-dependent spin splitting. We demonstrate that a homotopic Lifshitz transi…
Scalable tight-binding model for strained graphene
Ming-Hao Liu, Christophe De Beule, Alina Mreńca-Kolasińska +4
We generalize the scalable tight-binding model for graphene, which allows for efficient quantum transport simulations in the Dirac regime, to account for elastic strain. We show th…
Twisted Superconducting Quantum Diodes for High Fidelity Anharmonic Qubits
Han Zhong, Denis Kochan, Igor Zutic +1
In superconducting circuits, bidirectional signal propagation can cause back-reflections and back-action that couple environmental noise back to coherent elements, degrading fideli…
Phase Transition of the Ising Model on a 3-Dimensional Fractal Lattice
Jozef Genzor, Roman Krčmár, Hiroshi Ueda +3
The critical behavior of the classical Ising model on a three-dimensional fractal lattice with Hausdorff dimension is investigated using the higher-order…
Pseudomagnetic focusing of valley-polarized beams in strained graphene
Alina Mreńca-Kolasińska, Christophe De Beule, Jia-Tong Shi +4
In addition to spin, the low-energy charge carriers in graphene have two inequivalent valley flavors K and K' related by time-reversal symmetry, which can potentially serve as carr…
Hearing the shape of a Dirac drum: Dual quantum Hall states on curved surfaces
Ioachim Dusa, Denis Kochan, Maximilian Fürst +2
The geometry of a physical system is intimately related to its spectral properties, a concept colloquially referred to as "hearing the shape of a drum". Three-dimensional topologic…
Superconducting Diode Effect in Quantum Spin Hall Insulator-based Josephson Junctions
Benedikt Scharf, Denis Kochan, Alex Matos-Abiague
The superconducting diode effect (SDE) is a magneto-electric phenomenon where an external magnetic field imparts a non-zero center-of-mass momentum to Cooper pairs, either facilita…
Detecting the spread of valence band Wannier functions by optical sum rules
Luis F. Cárdenas-Castillo, Shuai Zhang, Denis Kochan +2
The spread of valence band Wannier functions in semiconductors and insulators is a characteristic property that gives a rough estimation of how insulating is the material. We elabo…
Magnetotransport Signatures of the Radial Rashba Spin-Orbit Coupling in Proximitized Graphene
Wun-Hao Kang, Michael Barth, Aitor Garcia-Ruiz +3
Graphene-based van der Waals heterostructures take advantage of tailoring spin-orbit coupling (SOC) in the graphene layer by proximity effect. At long-wavelength -- saddled by the…