161 citations · 707 across the 32 of their papers we have counts for
27 papers · 1 filter
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…
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…
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…
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…
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…
Long-lived domain wall plasmons in gapped bilayer graphene
Eddwi H. Hasdeo, Justin C. W. Song
Topological domain walls in dual-gated gapped bilayer graphene host edge states that are gate- tunable and valley polarized. Here we predict that plasmonic collective modes can pro…
Fermi energy dependence of first- and second-order Raman spectra in graphene: Kohn anomaly and quantum interference effect
Eddwi H. Hasdeo, Ahmad R. T. Nugraha, Mildred Dresselhaus +1
Intensity of the first- and the second-order Raman spectra are calculated as a function of the Fermi energy. We show that the Kohn anomaly effect, i.e., phonon frequency renormaliz…
Broadband Transverse Electric Surface Wave in Silicene
M. Shoufie Ukhtary, Ahmad R. T. Nugraha, Eddwi H. Hasdeo +1
Transverse electric (TE) surface wave in silicine is theoretically investigated. The TE surface wave in silicene is found to exhibit better characteristics compared with that in gr…
Selective coherent phonon mode generation in single wall carbon nanotubes
Ahmad R. T. Nugraha, Eddwi H. Hasdeo, Riichiro Saito
The pulse-train technique within ultrafast pump-probe spectroscopy is theoretically investigated to enhance a specific coherent phonon mode while suppressing the other phonon modes…
Quantum effects in the thermoelectric power factor of low-dimensional semiconductors
Nguyen T. Hung, Eddwi H. Hasdeo, Ahmad R. T. Nugraha +2
We theoretically investigate the interplay between the confinement length and the thermal de Broglie wavelength to optimize the thermoelectric power factor of semiconductin…