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Zeitschriftenartikel:

S. Löffler, M. Stöger-Pollach, A. Steiger-Thirsfeld, W. Hetaba, P. Schattschneider:
"Exploiting the Acceleration Voltage Dependence of EMCD";
Materials, 14 (2021), S. 1 - 14.



Kurzfassung englisch:
Energy-loss magnetic chiral dichroism (EMCD) is a versatile method for measuring magnetism
down to the atomic scale in transmission electron microscopy (TEM). As the magnetic signal
is encoded in the phase of the electron wave, any process distorting this characteristic phase is
detrimental for EMCD. For example, elastic scattering gives rise to a complex thickness dependence
of the signal. Since the details of elastic scattering depend on the electron´s energy, EMCD strongly
depends on the acceleration voltage. Here, we quantitatively investigate this dependence in detail,
using a combination of theory, numerical simulations, and experimental data. Our formulas enable
scientists to optimize the acceleration voltage when performing EMCD experiments.

Schlagworte:
EMCD; TEM; EELS; magnetism; acceleration voltage


"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.3390/ma14051314


Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.