137 citations · 699 across the 27 of their papers we have counts for
27 papers
Light-induced pseudo-magnetic fields in three-dimensional topological semimetals
Arpit Raj, Swati Chaudhary, Martin Rodriguez-Vega +3
In this work, we show that suitably designed spatially varying linearly polarized light provides a versatile route to generate and control pseudo-magnetic fields in Weyl semimetals…
Dimensional crossover of class D real-space topological invariants
Martin Rodriguez-Vega, Terry A. Loring, Alexander Cerjan
The topological properties of a material depend on its symmetries, parameters, and spatial dimension. Changes in these properties due to parameter and symmetry variations can be un…
Long-lived Zone-boundary Magnons in an Antiferromagnet
Jeongheon Choe, David Lujan, Gaihua Ye +13
Antiferromagnetic (AFM) insulators exhibit many desirable features for spintronic applications such as fast dynamics in the THz range and robustness to fluctuating external fields.…
Light-induced reorientation transition in an antiferromagnetic semiconductor
Bryan T. Fichera, Baiqing Lv, Karna Morey +18
Due to the lack of a net magnetic moment, antiferromagnets possess a unique robustness to external magnetic fields and are thus predicted to play an important role in future magnet…
Magnetic Order and Strain in Hexagonal Manganese Pnictide CaMnBi
Rodrigo Humberto Aguilera-del-Toro, Mikel Arruabarrena, Aritz Leonardo +3
The manganese pnictide CaMnBi, with Mn atoms arranged in a puckered honeycomb structure, exhibits narrow-gap antiferromagnetism, and it is currently a promising candidate f…
Interlayer Dzyaloshinskii-Moriya interactions induced via non-linear phononics in bilayer van der Waals materials
Ze-Xun Lin, Bowen Ma, Wesley Roberts +2
We theoretically study the impact of light-driven structural changes via nonlinear phononics on the magnetic order of untwisted bilayer van der Waals materials. We consider an illu…
Topological transverse spin transport in a canted antiferromagnet/heavy metal heterostructure
Wesley Roberts, Bowen Ma, Martin Rodriguez-Vega +1
We theoretically study the conditions under which a spin Nernst effect - a transverse spin current induced by an applied temperature gradient - can occur in a canted antiferromagne…
Giant effective magnetic moments of chiral phonons from orbit-lattice coupling
Swati Chaudhary, Dominik M. Juraschek, Martin Rodriguez-Vega +1
Circularly polarized lattice vibrations carry angular momentum and lead to magnetic responses in applied magnetic fields or when resonantly driven with ultrashort laser pulses. Rec…
Chiral Phonons with Giant Magnetic Moments in a Topological Crystalline Insulator
Felix G. G. Hernandez, Andrey Baydin, Swati Chaudhary +10
We have studied the magnetic response of transverse optical phonons in PbSnTe films. Polarization-dependent terahertz magnetospectroscopy measurements revealed Zeeman…
Out-of-plane magnetic anisotropy in bulk ilmenite
M. Arruabarrena, A. Leonardo, M. Rodriguez-Vega +2
Structural, electronic and magnetic properties of bulk ilmenite CoTiO are analyzed in the framework of density functional theory (DFT), using the generalized gradient approxima…
Real-time simulation of light-driven spin chains on quantum computers
Martin Rodriguez-Vega, Ella Carlander, Adrian Bahri +3
In this work, we study the real-time evolution of periodically driven (Floquet) systems on a quantum computer using IBM quantum devices. We consider a driven Landau-Zener model and…
Light-driven topological and magnetic phase transitions in thin-layer antiferromagnets
Martin Rodriguez-Vega, Ze-Xun Lin, A. Leonardo +3
We theoretically study the effect of low-frequency light pulses in resonance with phonons in the topological and magnetically ordered two septuple-layer (2-SL) MnBi2Te4 (MBT) and M…
Magnetic Control of Soft Chiral Phonons in PbTe
Andrey Baydin, Felix G. G. Hernandez, Martin Rodriguez-Vega +10
PbTe crystals have a soft transverse optical phonon mode in the terahertz frequency range, which is known to efficiently decay into heat-carrying acoustic phonons, resulting in ano…
Floquet engineering and non-equilibrium topological maps in twisted trilayer graphene
I. A. Assi, J. P. F. LeBlanc, Martin Rodriguez-Vega +2
Motivated by the recent experimental realization of twisted trilayer graphene and the observed superconductivity that is associated with its flat bands at specific angles, we study…
Spin-Phonon Interaction in Yttrium Iron Garnet
Kevin S. Olsson, Jeongheon Choe, Martin Rodriguez-Vega +6
Spin-phonon interaction is an important channel for spin and energy relaxation in magnetic insulators. Understanding this interaction is critical for developing magnetic insulator-…
Low-frequency and Moiré Floquet engineering: a review
Martin Rodriguez-Vega, Michael Vogl, Gregory A. Fiete
We review recent work on low-frequency Floquet engineering and its application to quantum materials driven by light, emphasizing van der Waals systems hosting Moiré superlattices.…
Floquet-engineering topological transitions in a twisted transition metal dichalcogenide homobilayer
Michael Vogl, Martin Rodriguez-Vega, Benedetta Flebus +2
Motivated by the recent experimental realization of twisted transition metal dichalcogenide bilayers, we study a simplified model driven by different forms of monochromatic light.…
Direct driving of electronic and phononic degrees of freedom in a honeycomb bilayer with infrared light
Martin Rodriguez-Vega, Michael Vogl, Gregory A. Fiete
We study theoretically AB-stacked honeycomb bilayers driven by light in resonance with an infrared phonon within a tight-binding description. We characterize the phonon properties…
Group theory study of the vibrational modes and magnetic order in the topological antiferromagnet MnBiTe
Martin Rodriguez-Vega, A. Leonardo, Gregory A. Fiete
We employ group theory to study the properties of the lattice vibrations and magnetic order in the antiferromagnetic topological insulator MnBiTe, both in bulk and few-laye…
Floquet engineering of twisted double bilayer graphene
Martin Rodriguez-Vega, Michael Vogl, Gregory A. Fiete
Motivated by the recent experimental realization of twisted double bilayer graphene (TDBG) samples we study, both analytically and numerically, the effects of circularly polarized…
Effective Floquet Hamiltonians for periodically-driven twisted bilayer graphene
Michael Vogl, Martin Rodriguez-Vega, Gregory A. Fiete
We derive effective Floquet Hamiltonians for twisted bilayer graphene driven by circularly polarized light in two different regimes beyond the weak-drive, high frequency regime. Fi…
Discovery of the soft electronic modes of the trimeron order in magnetite
Edoardo Baldini, Carina A. Belvin, Martin Rodriguez-Vega +9
The Verwey transition in magnetite (FeO) is the first metal-insulator transition ever observed and involves a concomitant structural rearrangement and charge-orbital orderi…
Floquet engineering of interlayer couplings: Tuning the magic angle of twisted bilayer graphene at the exit of a waveguide
Michael Vogl, Martin Rodriguez-Vega, Gregory A. Fiete
We introduce a new approach that allows one complete control over the modulation of the effective twist angle change in few-layer van der Waals heterostructures by irradiating them…
Linear Response Theory and Optical Conductivity of Floquet Topological Insulators
Abhishek Kumar, M. Rodriguez-Vega, T. Pereg-Barnea +1
Motivated by the quest for experimentally accessible dynamical probes of Floquet topological insulators, we formulate the linear response theory of a periodically driven system. We…