Programme

30 November – 1 December 2023

thursday

November

CHAIR: Gervasi Herranz

12:00

Tatiana G. Rappoport

Spin and orbital currents in solids. The latest frontiers in electronics?

friday

December

CHAIR: Josep Fontcuberta

08:00

Registration

08:15

Josep Fontcuberta

Welcome and Opening

08:25

Silvia Damerio

Why I do we care now about orbital currents?

Fundamentals

CHAIR: Silvia Damerio

08:30

Aurelien Manchon

A reminder of atomic physics. Spin and orbital momenta. Crystal field and quenching of orbital momentum. Spin-orbit coupling. Time-dependent Schrödinger equation.

10:00

Coffee Break

CHAIR: Gyanendra Singh

10:30

Aurelien Manchon

Band structure, orbitals and Fermi surfaces of simplest 3d-t_2g or 3d-e_g cases

12:00

Pause

12:15

Enric Canadell

Fermi surfaces and orbital mixing under E-bias. Orbital currents. An insight for newcomers.

12:45

Lunch

CHAIR: Matteo Fettizio

14:00

Dongwook Go

Time dependent evolution of electronic states. (Un)quenching orbital momentum. The ubiquitous orbital currents. Orbital accumulation and flow. Orbital currents in p-Si. Orbital textures in 3d metals (t_2g, e_g).

15:30

Pause

15:45

Hyun-Woo Lee

Electron hopping and Aharonov-Bohm effect. Orbital currents and Berry phase. Reminder of SHE and the role of SOC. Comparison to OHE. Orbital accumulation and exchange interactions. Can OC create magnetic torque? Relative strength of OHE and SHE in 3d and heavier 4,5d metals. Expectations from theory. Charge-spin and charge-orbital conversion. Definitions and expected values

How to measure orbital currents

CHAIR: Jeanine Gückelhorn