Determination of Composition and Thickness of MnSi and MnGe Layers by EDS.

0541357 - ÚCHP 2022 RIV US eng J - Journal Article
Koštejn, Martin - Fajgar, Radek - Dřínek, Vladislav - Jandová, Věra - Novotný, F.
Determination of Composition and Thickness of MnSi and MnGe Layers by EDS.
Journal of Nondestructive Evaluation. Roč. 39, č. 2 (2020), č. článku 40. ISSN 0195-9298. E-ISSN 1573-4862
R&D Projects: GA ČR(CZ) GA18-15613S
Grant - others:AV ČR(CZ) StrategieAV21/3
Program: StrategieAV
Institutional support: RVO:67985858
Keywords : composition * area density * thickness
OECD category: Physical chemistry
Impact factor: 1.995, year: 2020
Method of publishing: Open access with time embargo

Determination of composition and thickness is crucial for the preparation of thin layers. A separate measurement is possible, however, it could be time-consuming, and each technique requires a specifically prepared sample. Therefore, a combined, fast, and reliable technique would be advantageous. Calibration of energy dispersive X-ray spectroscopy (EDS) integrated with scanning electron microscope (SEM) by X-ray photoelectron spectroscopy (XPS), weighting balance and atomic force microscopy (AFM) were performed for simultaneous and non-destructive concentration, area density and thickness measurements of MnSi and MnGe thin layers prepared by a reactive pulsed laser deposition (PLD). The linearity of calibrations was supported by Monte Carlo calculations. The calibrations enabled the evaluation of Mn concentration with a deviation better than 2.7 at.%. The area density was determined with a deviation better than 6.8 µg/cm2, and the thickness was determined with a deviation better than 4.1 nm for samples measured with a standard substrate. The thickness measurement calibration omitting the standard substrate measurement resulted in the higher deviation of 7.6 nm, however, it enabled double sample throughput and spatial analyses.



Permanent Link: http://hdl.handle.net/11104/0318917