161 citations · 707 across the 32 of their papers we have counts for
34 papers
Dynamic moiré-like band modulation in Dirac materials via multi-beam optical interference
Evelyn P. Sinaga, Rizky Setiawan, Herri Trilaksana +2
We propose a purely optical Floquet framework to dynamically generate moiré-like superlattices and quasicrystalline potentials in a gapped Dirac material, entirely bypassing the ne…
Finite-q photon-drag shift current in two-dimensional massive chiral Dirac fermions
Rofii, Eddwi Hasdeo
We investigate the photon-drag shift current in an isotropic single-valley two-dimensional massive chiral Dirac model with chirality index by directly evaluating the full…
Molecular order induced charge transfer in a C-topological insulator moiré heterostructure
Ram Prakash Pandeya, Konstantin P. Shchukin, Yannic Falke +9
We synthesize and spectroscopically investigate monolayer C on the topological insulator (TI) BiTe. This C/BiTe heterostructure is characterized by ex…
Neutron-scattering signature of the Dzyaloshinskii-Moriya interaction in nanoparticles
Evelyn Pratami Sinaga, Michael P. Adams, Eddwi H. Hasdeo +1
The antisymmetric Dzyaloshinkii-Moriya interaction (DMI) arises in systems with broken inversion symmetry and strong spin-orbit coupling. In conjunction with the isotropic and symm…
Optimal half-metal band structure for large thermoelectric performance
Finantius E. M. Rahangiar, Adam B. Cahaya, Melania S. Muntini +2
Half-metal ferromagnets were predicted [in IEEE Trans. Mag. 51, 1 (2015)] to give large thermoelectric performance in anti-parallel spin valve configuration. Despite being metals t…
Hydrodynamic Navier-Stokes equations in two-dimensional systems with Rashba spin-orbit coupling
Edvin G. Idrisov, Eddwi H. Hasdeo, Byjesh N. Radhakrishnan +1
We study a two-dimensional (2D) electron system with a linear spectrum in the presence of Rashba spin-orbit (RSO) coupling in the hydrodynamic regime. We derive a semiclassical Bol…
Micromagnetic simulation of neutron scattering from spherical nanoparticles: Effect of pore-type defects
Evelyn Pratami Sinaga, Michael P. Adams, Mathias Bersweiler +6
We employ micromagnetic simulations to model the effect of pore-type microstructural defects on the magnetic small-angle neutron scattering cross section and the related pair-dista…
Coulomb drag of viscous electron fluids: drag viscosity and negative drag conductivity
Eddwi H. Hasdeo, Edvin G. Idrisov, Thomas L. Schmidt
We show that Coulomb drag in hydrodynamic bilayer systems leads to additional viscosity terms in the hydrodynamic equations, i.e., the drag and drag-Hall viscosities, besides the w…
Trigonal warping effects on optical properties of anomalous Hall materials
Jyesta M. Adhidewata, Ravanny W. M. Komalig, M. Shoufie Ukhtary +3
The topological nature of topological insulators are related to the symmetries present in the material, for example, quantum spin Hall effect can be observed in topological insulat…
Long-lived qubit entanglement by surface plasmon polaritons in a Weyl semimetal
M Shoufie Ukhtary, Eddwi H. Hasdeo, Andriyan B. Suksmono +1
We investigate spontaneous entanglement of two qubits mediated by nonreciprocal surface plasmon polaritons (SPPs) in a Weyl semimetal. In the absence of external magnetic fields, t…
Spin-tunable thermoelectric performance in monolayer chromium pnictides
Melania S. Muntini, Edi Suprayoga, Sasfan A. Wella +6
Historically, finding two-dimensional (2D) magnets is well known to be a difficult task due to instability against thermal spin fluctuations. Metals are also normally considered po…
Thermoelectric properties of semiconducting materials with parabolic and pudding-mold band structures
Jyesta M. Adhidewata, Ahmad R. T. Nugraha, Eddwi H. Hasdeo +2
We theoretically investigate the thermoelectric properties of semiconducting (gapped) materials by varying the degrees of polynomials in their energy dispersion relations, in which…
Does Topology Enhance Thermoelectric Efficiency? A Case Study in Bismuthene
Muhammad Gaffar, Sasfan Arman Wella, Eddwi Hesky Hasdeo
Two-dimensional (2D) bismuth (Bi) layer, known as bismuthene, exhibits topological bulk states due to large spin-orbit coupling that inverts the bands. Using the tight-binding…
Kerr and Faraday rotations in topological flat and dispersive band structures
Alireza Habibi, Ahmad Z. Musthofa, Elaheh Adibi +3
Integer quantum Hall (IQH) states and quantum anomalous Hall (QAH) states show the same static (dc) response but distinct dynamical (ac) response. In particular, the ac anomalous H…
Kerr effect in tilted nodal loop semimetals
Johan Ekström, Eddwi H. Hasdeo, M. Belén Farias +1
We investigate the optical activity of tilted nodal loop semimetals. We calculate the full conductivity matrix for a band structure containing a nodal loop with possible tilt in th…
Electron hydrodynamics of anomalous Hall materials
Eddwi H. Hasdeo, Johan Ekström, Edvin G. Idrisov +1
We study two-dimensional electron systems in the hydrodynamic regime. We show that a geometrical Berry curvature modifies the effective Navier-Stokes equation for viscous electron…
Non-universal Scaling of Thermoelectric Efficiency in 3D and 2D Thermoelectric Semiconductors
Kevin Octavian, Eddwi H. Hasdeo
We performed the first-principles calculation on common thermoelectric semiconductors , , , and in bulk three-dimension (3D) and tw…
The quest and hope of Majorana zero modes in topological superconductor for fault-tolerant quantum computing: an introductory overview
Nur R. Ayukaryana, Mohammad H. Fauzi, Eddwi H. Hasdeo
Ettore Majorana, in his short life, unintendedly has uncovered the most profound problem in quantum computation by his discovery of Majorana fermion, a particle which is its own an…
Strain Effects on Band Structure and Dirac Nodal-line Morphology of ZrSiSe
Bernardus Rendy, Eddwi H. Hasdeo
The Dirac nodal-line semimetals (DNLS) are new promising materials for technological applications due to its exotic properties, which originate from band structures dispersion and…
Investigation of electron and phonon transport in Bi-doped CaMnO for thermoelectric applications
E. Suprayoga, W. B. K. Putri, K. Singsoog +8
Electron and phonon transports in CaMnO3 and its Bi-doped counterpart, Bi0.03Ca0.97MnO3, are investigated by thermoelectric transport measurements, Raman spectroscopy, and first-pr…
Origin of the flat band in heavily Cs doped graphene
N. Ehlen, M. Hell, G. Marini +6
A flat energy dispersion of electrons at the Fermi level of a material leads to instabilities in the electronic system and can drive phase transitions. Here we introduce a method t…
Optimal band gap for improved thermoelectric performance of two-dimensional Dirac materials
Eddwi H. Hasdeo, Lukas P. A. Krisna, Muhammad Y. Hanna +3
Thermoelectric properties of two-dimensional (2D) Dirac materials are calculated within linearized Boltzmann transport theory and relaxation time approximation. We find that the ga…
Thermoelectric properties of two-dimensional Dirac materials
Eddwi H. Hasdeo, Lukas P. A. Krisna, Ahmad R. T. Nugraha
We performed Boltzmann transport calculation to obtain the Seebeck coefficient, electrical conductivity, electronic thermal conductivity, and thermoelectric figure of merit (ZT) fo…
Intra-cell dynamics and cyclotron motion without magnetic field
Eddwi H. Hasdeo, Alex J. Frenzel, Justin C. W. Song
Intra-cell motion endows rich non-trivial phenomena to a wide variety of quantum materials. The most prominent example is a transverse current in the absence of a magnetic field (i…