Electric-field-induced orbital angular momentum in metals

KJ Lee, V Cros, HW Lee - nature materials, 2024 - nature.com
Electrons in solids carry orbital angular momentum in diverse non-equilibrium situations.
This orbital current is often overlooked when considering electronic transport. Here we …

Orbital pum** incorporating both orbital angular momentum and position

S Han, HW Ko, JH Oh, HW Lee, KJ Lee, KW Kim - Physical Review Letters, 2025 - APS
We develop a theory of adiabatic orbital pum**, highlighting qualitative differences from
spin pum**. An oscillating magnetic field pumps not only orbital angular momentum …

Orbital diffusion, polarization and swap** in centrosymmetric metals

X Ning, A Pezo, KW Kim, W Zhao, KJ Lee… - ar** in Centrosymmetric Metals
X Ning, A Pezo, KW Kim, W Zhao, KJ Lee… - Physical Review Letters, 2025 - APS
We propose a general theory of charge, spin, and orbital diffusion based on Keldysh
formalism. Our findings indicate that the diffusivity of orbital angular momentum in metals is …