ORBITERA
Financiado
Advancing orbitronics by pushing electron orbital angular momentum to terahertz...
The spin angular momentum (S) of the electron has significantly extended conventional electronics, which relies on the electron charge (C), by new, so-called spintronic functionalities. Examples include magnetization switching, th...
The spin angular momentum (S) of the electron has significantly extended conventional electronics, which relies on the electron charge (C), by new, so-called spintronic functionalities. Examples include magnetization switching, the transport of S and its detection, even down to femtosecond time scales. To boost the efficiency of spintronics, the so far neglected yet equally fascinating and important orbital angular momentum (L) of electrons is considered to be a powerful pathway. Orbitronic phenomena such as L-based transport, torques and magneto-optic effects have much larger magnitude than their S counterparts and may, thus, efficiently complement or even replace spintronic functionalities. Microscopically, L is completely different from S. Its dynamics involves new physics that needs to be understood, in particular on ultrafast time scales.In the ORBITERA project, my team and I will obtain unprecedented insights into L dynamics by using femtosecond optical pulses and terahertz (THz) electric fields, which couple directly to the motion of conduction electrons at their natural frequencies and relaxation rates. We will tackle important challenges of general orbitronics and, in particular, separate L- and S-based effects despite their identical macroscopic symmetry properties, build ultrafast generators and detectors of exclusively L currents, reveal the nature of L transport (e.g., ballistic, diffusive, tunneling), measure the magnetic moments forming an L current, probe the interaction of L with the crystal lattice, temporally resolve L-S and L-C interconversion, and apply THz L torque to ultimately switch magnetic order ultrafast.By establishing THz orbitronics, new methodology (such as ultrafast drivers of L currents and L-conductance spectroscopy at 0.1-50 THz) and applications (such as the detection of THz electric fields without relying on the weak spin-orbit coupling) will be developed that can be used by a community beyond specialized THz labs.
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Duración del proyecto: 59 meses
Fecha Inicio: 2025-01-01
Fecha Fin: 2029-12-31
Fecha Fin: 2029-12-31
Línea de financiación: concedida
El organismo HORIZON EUROPE notifico la concesión del proyecto
Línea de financiación objetivo
El proyecto se financió a través de la siguiente ayuda:
ERC-2023-ADG:
ERC ADVANCED GRANTS
Cerrada
hace 1 año
Presupuesto
El presupuesto total del proyecto asciende a
2M€
Líder del proyecto
FREIE UNIVERSITAET BERLIN
No se ha especificado una descripción o un objeto social para esta compañía.
Perfil tecnológico
TRL
4-5
Perfil tecnológico
TRL
4-5