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 …

Electronic quantum materials simulated with artificial model lattices

SE Freeney, MR Slot, TS Gardenier, I Swart… - ACS Nanoscience …, 2022 - ACS Publications
The band structure and electronic properties of a material are defined by the sort of
elements, the atomic registry in the crystal, the dimensions, the presence of spin–orbit …

Manipulation of the large Rashba spin splitting in polar two-dimensional transition-metal dichalcogenides

QF Yao, J Cai, WY Tong, SJ Gong, JQ Wang, X Wan… - Physical review B, 2017 - APS
Transition-metal dichalcogenide (TMD) monolayers MXY (M= Mo, W; X≠ Y= S, Se, Te) are
two-dimensional polar semiconductors. Setting the WSeTe monolayer as an example and …

Nontrivial torque generation by orbital angular momentum injection in ferromagnetic-metal/ trilayers

J Kim, D Go, H Tsai, D Jo, K Kondou, HW Lee… - Physical Review B, 2021 - APS
Efficient electrical generation of torque is desired to develop innovative magnetic
nanodevices. The torque can be generated by charge to spin conversion of heavy-metal …

Orbital Rashba effect in a surface-oxidized Cu film

D Go, D Jo, T Gao, K Ando, S Blügel, HW Lee… - Physical Review B, 2021 - APS
Recent experimental observation of an unexpectedly large current-induced spin-orbit torque
in surface oxidized Cu on top of a ferromagnet pointed to a possibly prominent role of the …

Angle-resolved photoemission spectroscopy

H Zhang, T Pincelli, C Jozwiak, T Kondo… - Nature Reviews …, 2022 - nature.com
For solid-state materials, the electronic structure is critical in determining a crystal's physical
properties. By experimentally detecting the electronic structure, the fundamental physics can …

[HTML][HTML] Photoelectron spin-flipping and texture manipulation in a topological insulator

C Jozwiak, CH Park, K Gotlieb, C Hwang, DH Lee… - Nature Physics, 2013 - nature.com
Recently discovered materials called three-dimensional topological insulators,,,, constitute
examples of symmetry-protected topological states in the absence of applied magnetic fields …

[HTML][HTML] Quasiparticle dynamics and spin–orbital texture of the SrTiO3 two-dimensional electron gas

PDC King, S McKeown Walker, A Tamai… - Nature …, 2014 - nature.com
Two-dimensional electron gases (2DEGs) in SrTiO3 have become model systems for
engineering emergent behaviour in complex transition metal oxides. Understanding the …

[HTML][HTML] Toward surface orbitronics: giant orbital magnetism from the orbital Rashba effect at the surface of sp-metals

D Go, JP Hanke, PM Buhl, F Freimuth, G Bihlmayer… - Scientific reports, 2017 - nature.com
As the inversion symmetry is broken at a surface, spin-orbit interaction gives rise to spin-
dependent energy shifts–a phenomenon which is known as the spin Rashba effect …

Colossal orbital edelstein effect in noncentrosymmetric superconductors

L Chirolli, MT Mercaldo, C Guarcello, F Giazotto… - Physical Review Letters, 2022 - APS
In superconductors that lack inversion symmetry, the flow of supercurrent can induce a
nonvanishing magnetization, a phenomenon which is at the heart of nondissipative …