Ultrafast light-induced magnetization in non-magnetic films: from orbital and spin Hall phenomena to the inverse Faraday effect

H Hamamera, F Souza Mendes Guimarães… - Frontiers in …, 2024 - frontiersin.org
The field of orbitronics has emerged with great potential to impact information technology by
enabling environmentally friendly electronic devices. The main electronic degree of freedom …

Orbital magnetoelectric effect in nanoribbons of transition metal dichalcogenides

TP Cysne, FSM Guimarães, LM Canonico, M Costa… - Physical Review B, 2023 - APS
The orbital magnetoelectric effect (OME) generically refers to the appearance of an orbital
magnetization induced by an applied electric field. Here, we show that nanoribbons of …

Orbital magnetoelectric effect in zigzag nanoribbons of -band systems

TP Cysne, FSM Guimarães, LM Canonico… - Physical Review B, 2021 - APS
Profiles of the spin and orbital angular momentum accumulations induced by a
longitudinally applied electric field are explored in nanoribbons of p-band systems with a …

Controlling the orbital Hall effect in gapped bilayer graphene in the terahertz regime

TP Cysne, WJM Kort-Kamp, TG Rappoport - Physical Review Research, 2024 - APS
We study the orbital Hall effect (OHE) in the AC regime using bilayer graphene (BLG) as a
prototypical material platform. While the unbiased BLG has gapless electronic spectra …

Superconductivity in nb: impact of temperature, dimensionality and cooper-pairing

UA Aceves Rodriguez, FSM Guimarães, S Lounis - Nanomaterials, 2024 - mdpi.com
The ability to realistically simulate the electronic structure of superconducting materials is
important to understand and predict various properties emerging in both the …

[HTML][HTML] Perspectives of voltage control for magnetic exchange bias in multiferroic heterostructures

Q Yang, Z Zhou, NX Sun, M Liu - Physics Letters A, 2017 - Elsevier
Exchange bias, as an internal magnetic bias induced by a ferromagnetic–antiferromagnetic
exchange coupling, is extremely important in many magnetic applications such as …

Polarisation-dependent single-pulse ultrafast optical switching of an elementary ferromagnet

H Hamamera, FSM Guimarães… - Communications …, 2022 - nature.com
The ultimate control of magnetic states of matter at femtosecond (or even faster) timescales
defines one of the most pursued paradigm shifts for future information technology. In this …

Comparative study of methodologies to compute the intrinsic Gilbert damping: interrelations, validity and physical consequences

FSM Guimaraes, JR Suckert, J Chico… - Journal of Physics …, 2019 - iopscience.iop.org
Relaxation effects are of primary importance in the description of magnetic excitations,
leading to a myriad of methods addressing the phenomenological damping parameters. In …

Spin-orbit torques and their associated effective fields from gigahertz to terahertz

FSM Guimarães, J Bouaziz, M dos Santos Dias… - Communications …, 2020 - nature.com
Terahertz spintronics offers the prospect of devices which are both faster and more energy-
efficient. A promising route to achieve this goal is to exploit current-induced spin-orbit …

Dynamical amplification of magnetoresistances and Hall currents up to the THz regime

FSM Guimarães, M dos Santos Dias, J Bouaziz… - Scientific reports, 2017 - nature.com
Spin-orbit-related effects offer a highly promising route for reading and writing information in
magnetic units of future devices. These phenomena rely not only on the static magnetization …