Spintronics meets orbitronics: Emergence of orbital angular momentum in solids

D Jo, D Go, GM Choi, HW Lee - npj Spintronics, 2024 - nature.com
One of the ultimate goals of spintronics is to realize an efficient electrical manipulation of
spin for high-speed and low-power nanodevices. A core ingredient for achieving this goal is …

Observation of the orbital Hall effect in a light metal Ti

YG Choi, D Jo, KH Ko, D Go, KH Kim, HG Park, C Kim… - Nature, 2023 - nature.com
The orbital Hall effect refers to the generation of electron orbital angular momentum flow
transverse to an external electric field. Contrary to the common belief that the orbital angular …

Orbitronics: Orbital currents in solids

D Go, D Jo, HW Lee, M Kläui, Y Mokrousov - Europhysics Letters, 2021 - iopscience.iop.org
In solids, electronic Bloch states are formed by atomic orbitals. While it is natural to expect
that orbital composition and information about Bloch states can be manipulated and …

Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten

TS Seifert, D Go, H Hayashi, R Rouzegar… - Nature …, 2023 - nature.com
The emerging field of orbitronics exploits the electron orbital momentum L. Compared to
spin-polarized electrons, L may allow the transfer of magnetic information with considerably …

Monopole-like orbital-momentum locking and the induced orbital transport in topological chiral semimetals

Q Yang, J **ao, I Robredo… - Proceedings of the …, 2023 - National Acad Sciences
The interplay between chirality and topology nurtures many exotic electronic properties. For
instance, topological chiral semimetals display multifold chiral fermions that manifest …

Observation of the orbital Rashba-Edelstein magnetoresistance

S Ding, Z Liang, D Go, C Yun, M Xue, Z Liu, S Becker… - Physical review …, 2022 - APS
We report the observation of magnetoresistance (MR) that could originate from the orbital
angular momentum (OAM) transport in a permalloy (Py)/oxidized Cu (Cu*) heterostructure …

Electrical control of magnetism by electric field and current-induced torques

A Fert, R Ramesh, V Garcia, F Casanova… - arxiv preprint arxiv …, 2023 - arxiv.org
While early magnetic memory designs relied on magnetization switching by locally
generated magnetic fields, key insights in condensed matter physics later suggested the …

Harnessing orbital-to-spin conversion of interfacial orbital currents for efficient spin-orbit torques

S Ding, A Ross, D Go, L Baldrati, Z Ren, F Freimuth… - Physical review …, 2020 - APS
Current-induced spin-orbit torques (SOTs) allow for the efficient electrical manipulation of
magnetism in spintronic devices. Engineering the SOT efficiency is a key goal that is …

First-principles theory of intrinsic spin and orbital Hall and Nernst effects in metallic monoatomic crystals

L Salemi, PM Oppeneer - Physical Review Materials, 2022 - APS
The generation of spin and orbital currents is of crucial importance in the field of spin-
orbitronics. In this work, using relativistic density functional theory and the Kubo linear …

Orbital Hanle Magnetoresistance in a Transition Metal

G Sala, H Wang, W Legrand, P Gambardella - Physical Review Letters, 2023 - APS
The Hanle magnetoresistance is a telltale signature of spin precession in nonmagnetic
conductors, in which strong spin-orbit coupling generates edge spin accumulation via the …