54 citations · 479 across the 28 of their papers we have counts for
28 papers
High-accuracy evaluation of non-thermal magnetic states beyond spin-wave theory: applications to higher-energy states
Wesley Roberts, Michael Vogl, Roderich Moessner +1
We present an approximation scheme based on selective Hilbert space truncation for characterizing non-thermal states of magnetic systems beyond spin-wave theory. We study applicati…
Band structure and band topology in twisted homotrilayer transition metal dichalcogenides
Hassan AlBuhairan, Michael Vogl
We investigate a simplified continuum model of a twisted homotrilayer TMD with negligible next-nearest layer couplings. We systematically analyze band structure and topology of var…
Impact of clustering of substitutional impurities on quasiparticle lifetimes and localization
Jack G. Nedell, Michael Vogl, Gregory A. Fiete
Motivated by the observation and prediction of clustering behavior for impurities substituted into the host lattice of a real material, and the dramatic impact this can have on ele…
Fidelity of the Kitaev honeycomb model under a quench
Wesley Roberts, Michael Vogl, Gregory A. Fiete
Motivated by rapid developments in the field of quantum computing and the increasingly diverse nature of qubits, we theoretically study the influence that quenched outside disturba…
Tunneling phase diagrams in anisotropic Multi-Weyl semimetals
Ahmed Bouhlal, Adel Abbout, Ahmed Jellal +2
Motivated by the exciting prediction of Multi-Weyl topological semimetals that are stabilized by point group symmetries [Phys. Rev. Lett. 108 (2012) 266802], we study tunneling phe…
Light driven magnetic transitions in transition metal dichalcogenide heterobilayers
Michael Vogl, Swati Chaudhary, Gregory A. Fiete
Motivated by the recent excitement around the physics of twisted transition metal dichalcogenide (TMD) multilayer systems, we study strongly correlated phases of TMD heterobilayers…
Chiral limits and effect of light on the Hofstadter butterfly in twisted bilayer graphene
Nadia Benlakhouy, Ahmed Jellal, Hocine Bahlouli +1
We study the magnetic field induced Hofstadter butterfly in twisted bilayer graphene (TBG) in various kinds of situations. First, we study the equilibrium case and identify the int…
Deep learning of deformation-dependent conductance in thin films: nanobubbles in graphene
Jack G. Nedell, Jonah Spector, Adel Abbout +2
Motivated by the ever-improving performance of deep learning techniques, we design a mixed input convolutional neural network approach to predict transport properties in deformed n…
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…
Tunneling in an anisotropic cubic Dirac semi-metal
Ahmed Bouhlal, Ahmed Jellal, Hocine Bahlouli +1
Motivated by a recent first principles prediction of an anisotropic cubic Dirac semi-metal in a real material Tl(TeMo), we study the behavior of electrons tunneling through a p…
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…
Fractional Spin fluctuations and quantum liquid signature in Gd2ZnIrO6
Birender Singh, Deepu Kumar, Vivek Kumar +5
Hitherto, the discrete identification of quantum spin liquid phase, holy grail of condensed matter physics, remains a challenging task experimentally. However, the precursor of qua…
The Future of the Correlated Electron Problem
A. Alexandradinata, N. P. Armitage, Andrey Baydin +44
A central problem in modern condensed matter physics is the understanding of materials with strong electron correlations. Despite extensive work, the essential physics of many of t…
Coupling of lattice, spin and intra-configurational excitations of Eu3+ in Eu2ZnIrO6
Birender Singh, M. Vogl, S. Wurmehl +3
In Eu2ZnIrO6, effectively two atoms are active i.e. Ir is magnetically active, which results in complex magnetic ordering within the Ir sublattice at low temperature. On the other…
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…
Exact resummation of the Holstein-Primakoff expansion and differential equation approach to operator square-roots
Michael Vogl, Pontus Laurell, Hao Zhang +2
Operator square-roots are ubiquitous in theoretical physics. They appear, for example, in the Holstein-Primakoff representation of spin operators and in the Klein-Gordon equation.…
Kramer doublets, phonons, crystal-field excitations and their coupling in Nd2ZnIrO6
Birender Singh, M. Vogl, S. Wurmehl +3
We report comprehensive Raman-scattering measurements on a single crystal of double-perovskite Nd2ZnIrO6 in temperature range of 4-330 K, and spanning a broad spectral range from 2…
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…
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…
Effective Floquet Hamiltonian in the low-frequency regime
Michael Vogl, Martin Rodriguez-Vega, Gregory A. Fiete
We develop a theory to derive effective Floquet Hamiltonians in the weak drive and low-frequency regime. We construct the theory in analogy with band theory for electrons in a spat…
Complex magnetic properties in the mixed 4f -5d double perovskite iridates Ln2ZnIrO6 (Ln = Nd, Sm, Eu & Gd)
M. Vogl, R. Morrow, A. A. Aczel +5
In this work, we report on the synthesis and magnetic properties of a series of double perovskites LnZnIrO with Ln = Nd, Sm, Eu & Gd. These compounds present new examples o…
Disordered magnetism in the double perovskite LaCaScIrO6 with a distorted fcc lattice of Ir4+
M. Vogl, G. Bastien, R. Sarkar +9
The synthesis and characterization of the previously unknown material LaCaScIrO is reported. LaCaScIrO presents a new example of the rare case of a double perovskite with t…