Academic Journal
Isotopic Correction of Compositional Inaccuracies in the Atom Probe Analysis of LaB 6
| العنوان: | Isotopic Correction of Compositional Inaccuracies in the Atom Probe Analysis of LaB 6 |
|---|---|
| المؤلفون: | S. Ndiaye, O. Bhorade, I. Blum, B. Klaes, C. Bacchi, J. Houard, A. Vella, F. Vurpillot, L. Rigutti |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biochemistry, Pharmacology, Ecology, Sociology, Mathematical Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, atom probe analysis, higher background level, exhibits inaccuracies influenced, affecting composition measurements, stoichiometric lanthanum hexaboride, compositional correction based, 6 , continuous boron evaporation, compositional inaccuracies, continuous evaporation, measured composition, isotopic correction, higher fraction, multiple evaporation, two isotopes, successfully applied, scale characteristics, pseudomultiple events, particularly showing, multiple isotopes, measurement errors, mass spectrum, la ) |
| الوصف: | The atomic-scale characteristics of stoichiometric lanthanum hexaboride (LaB 6 ) material are investigated in this work using atom probe tomography (APT). The presence of a higher background level in the mass spectrum is attributed to continuous boron evaporation, causing preferential boron loss and affecting composition measurements. The measured composition in LaB 6 exhibits inaccuracies influenced by the experimental conditions, particularly showing an excess of lanthanum (La). This enrichment is consistently linked to boron’s tendency for continuous evaporation, leading to a higher fraction of multiple evaporation and detection events. Consequently, the susceptibility of boron to measurement errors is increased due to detector limitations. To address this issue, we propose a method of compositional correction based on pseudomultiple events and an abundance of isotopic pairs, which has been successfully applied to elements with two isotopes and has the potential for elements with multiple isotopes. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Isotopic_Correction_of_Compositional_Inaccuracies_in_the_Atom_Probe_Analysis_of_LaB_sub_6_sub_/25189438 |
| DOI: | 10.1021/acs.jpcc.3c07595.s001 |
| الاتاحة: | https://doi.org/10.1021/acs.jpcc.3c07595.s001 https://figshare.com/articles/journal_contribution/Isotopic_Correction_of_Compositional_Inaccuracies_in_the_Atom_Probe_Analysis_of_LaB_sub_6_sub_/25189438 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.7E262A83 |
| قاعدة البيانات: | BASE |
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