TY  - JOUR
AU  - Kueny, Elias
AU  - Calendron, Anne-Laure
AU  - Velten, Sven
AU  - Bocklage, Lars
AU  - Kärtner, Franz
AU  - Roehlsberger, Ralf
TI  - Spin-structured multilayer THz emitters by oblique incidence deposition
JO  - Journal of applied physics
VL  - 133
IS  - 3
SN  - 0021-8979
CY  - Melville, NY
PB  - American Inst. of Physics
M1  - PUBDB-2022-01297
SP  - 033903
PY  - 2023
N1  - Grant from Helmholtz: P303.
AB  - State-of-the-art THz spintronic emitters require a constant magnetic field to saturate their magnetization. We demonstrate that depositing the ferromagnetic layers at oblique incidence confines the magnetization to a chosen in-plane easy axis and maintains the saturation in the absence of an external magnetic field. We use this method to build THz emitters structured as spin valves, for which we use an external magnetic field to turn on and off the emission of THz radiation as well as to change its polarization. We are able to reproduce the THz waveforms by modeling the spin current and the THz propagation through the multilayer system.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001086450400005
DO  - DOI:10.1063/5.0128437
UR  - https://bib-pubdb1.desy.de/record/475262
ER  -