381 citations · 3k across the 46 of their papers we have counts for
46 papers
Stacking-tuned superconductivity and competing charge-density-wave states in NbSe
Sandra Sajan, Xinze Yang, Haojie Guo +9
Layer stacking provides a powerful yet underexplored route for reshaping collective quantum order in van der Waals materials. Here we use high-resolution scanning tunneling microsc…
Observation of magnetically switchable quantum geometric photocurrents
Qi Tian, Zhuoliang Ni, Matthew Cothrine +6
In non-centrosymmetric materials, light can be rectified into two types of DC photocurrents, known as injection and shift currents, through the bulk photovoltaic effect. Recent the…
Transport signatures of valley polarization in graphene multilayers: In-plane linear magnetoconductivity vs anomalous Hall effect
Fernando Peñaranda, Fernando de Juan
In two-dimensional materials where interacting Fermi pockets occur in valleys related by time-reversal symmetry, a spontaneous valley imbalance results in a novel state known as an…
Charge transfer in T/H heterostructures of transition metal dichalcogenides
Irián Sánchez-Ramírez, Maia G. Vergniory, Fernando de Juan
The charge density wave state of the T polytype of MX (M=Nb,Ta, X=S, Se) is known to host a half-filled flat band, which electronic correlations driv…
Symmetry Origin and Microscopic Mechanism of Electrical Magnetochiral Anisotropy in Tellurium
Manuel Suárez-Rodríguez, Beatriz Martín-García, Francesco Calavalle +7
Non-linear transport effects in response to external magnetic fields, i.e. electrical magnetochiral anisotropy (eMChA), have attracted much attention for their importance to study…
Intrinsic and extrinsic photogalvanic effects in twisted bilayer graphene
Fernando Peñaranda, Hector Ochoa, Fernando de Juan
The chiral lattice structure of twisted bilayer graphene with D6 symmetry allows for intrinsic photogalvanic effects only at off-normal incidence, while additional extrinsic effect…
Odd non-linear conductivity under spatial inversion in chiral Tellurium
Manuel Suárez-Rodríguez, Beatriz Martín-García, Witold Skowroński +9
Electrical transport in non-centrosymmetric materials departs from the well-established phenomenological Ohm's law. Instead of a linear relation between current and electric field,…
Understanding the large shift photocurrent of WS nanotubes: A comparative analysis with monolayers
Jyoti Krishna, Peio Garcia-Goiricelaya, Fernando de Juan +1
We study the similarities and differences in the shift photocurrent contribution to the bulk photovoltaic effect between transition-metal dichalcogenide monolayers and nanotubes. O…
Doping-induced nematic and stripe orders within the charge density wave state of TiSe
Daniel Muñoz-Segovia, Jörn W. F. Venderbos, Adolfo G. Grushin +1
In this work, we present a theory to address conflicting experimental claims regarding the charge density wave (CDW) state in TiSe, including whether there is a single or multi…
Weyl metallic state induced by helical magnetic order
Jian-Rui Soh, Irián Sánchez-Ramírez, Xupeng Yang +15
In the rapidly expanding field of topological materials there is growing interest in systems whose topological electronic band features can be induced or controlled by magnetism. M…
Band structures of (NbSe)I and (TaSe)I: Reconciling transport, optics and ARPES
Irián Sánchez-Ramírez, Maia G. Vergniory, Claudia Felser +1
Among the quasi one-dimensional transition metal tetrachalcogenides (MSe)I (M=Nb,Ta), the compounds are the only ones not displaying charge density waves. Instead, th…
Unconventional charge-to-spin conversions in graphene/MoTe2 van der Waals heterostructures
Nerea Ontoso, C. K. Safeer, Franz Herling +9
Spin-charge interconversion (SCI) is a central phenomenon to the development of spintronic devices from materials with strong spin-orbit coupling (SOC). In the case of materials wi…
Universal features of entanglement entropy in the honeycomb Hubbard model
Jonathan D'Emidio, Roman Orus, Nicolas Laflorencie +1
The entanglement entropy is a unique probe to reveal universal features of strongly interacting many-body systems. In two or more dimensions these features are subtle, and detectin…
Charge-to-spin conversion in twisted graphene/WSe heterostructures
Seungjun Lee, D. J. P. de Sousa, Young-Kyun Kwon +4
We investigate the twist angle dependence of spin-orbit coupling (SOC) proximity effects and charge-to-spin conversion (CSC) in graphene/WSe heterostructures from first princip…
Theoretical study of topological properties of ferromagnetic pyrite CoS
Iñigo Robredo, Niels B. M. Schröter, Armando Reyes-Serrato +4
Since the discovery of the first topological material 15 years ago, the search for material realizations of novel topological phases has become the driving force of the field. Whil…
Confined vs. extended Dirac surface states in topological crystalline insulator nanowires
Roni Majlin Skiff, Fernando de Juan, Raquel Queiroz +3
Confining two dimensional Dirac fermions on the surface of topological insulators has remained an outstanding conceptual challenge. Here we show that Dirac fermion confinement is a…
Cubic Hall viscosity in three-dimensional topological semimetals
Iñigo Robredo, Pranav Rao, Fernando de Juan +5
The nondissipative (Hall) viscosity is known to play an interesting role in two-dimensional (2D) topological states of matter, in the hydrodynamic regime of correlated materials, a…
Observation of superconducting collective modes from competing pairing instabilities in single-layer NbSe
Wen Wan, Paul Dreher, Daniel Muñoz-Segovia +6
In certain unconventional superconductors with sizable electronic correlations, the availability of closely competing pairing channels leads to characteristic soft collective fluct…
Giant topological longitudinal circular photo-galvanic effect in the chiral multifold semimetal CoSi
Zhuoliang Ni, K. Wang, Y. Zhang +10
The absence of mirror symmetry, or chirality, is behind striking natural phenomena found in systems as diverse as DNA and crystalline solids. A remarkable example occurs when chira…
Assessing the role of interatomic position matrix elements in tight-binding calculations of optical properties
Julen Ibañez-Azpiroz, Fernando de Juan, Ivo Souza
We study the role of hopping matrix elements of the position operator in tight-binding calculations of linear and nonlinear optical properties of solids. Our ana…
Magnetically Switchable Light-Matter Interaction in the Two-Dimensional Magnet CrI3
Yang Zhang, Tobias Holder, Hiroaki Ishizuka +4
Coupling different physical properties is a fascinating subject of physics. Already well-known are the multiferroics which show properties of ferroelectrics and magnets. But ferroe…
Chiral Topological Semimetal with Multifold Band Crossings and Long Fermi arcs
Niels B. M. Schröter, Ding Pei, Maia G. Vergniory +14
Topological semimetals in crystals with a chiral structure (which possess a handedness due to a lack of mirror and inversion symmetries) are expected to display numerous exotic phy…
Interplay of chiral and helical states in a Quantum Spin Hall Insulator lateral junction
M. R. Calvo, F. de Juan, R. Ilan +11
We study the electronic transport across an electrostatically-gated lateral junction in a HgTe quantum well, a canonical 2D topological insulator, with and without applied magnetic…
Time-reversal and rotation symmetry breaking superconductivity in Dirac materials
Luca Chirolli, Fernando de Juan, Francisco Guinea
We consider mixed symmetry superconducting phases in Dirac materials in the odd parity channel, where pseudoscalar and vector order parameters can coexist due to their similar crit…