Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped Ceria
A combined electron spin resonance (ESR) and atomic force microscopy (AFM) study on Ce1−xGdxO2−x/2 samples is here presented, aimed at investigating the evolution of the ESR spectral shape as a function of x in a wide composition range. At low x=0.02, the spectrum is composed of features at geff≈2;...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2015/491840 |
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| author | Cesare Oliva Francesco Orsini Serena Cappelli Paolo Arosio Mattia Allieta Mauro Coduri Marco Scavini |
| author_facet | Cesare Oliva Francesco Orsini Serena Cappelli Paolo Arosio Mattia Allieta Mauro Coduri Marco Scavini |
| author_sort | Cesare Oliva |
| collection | DOAJ |
| description | A combined electron spin resonance (ESR) and atomic force microscopy (AFM) study on Ce1−xGdxO2−x/2 samples is here presented, aimed at investigating the evolution of the ESR spectral shape as a function of x in a wide composition range. At low x=0.02, the spectrum is composed of features at geff≈2; 2.8; 6. With increasing x, this pattern merges into a single geff≈2 broad ESR curve, which assumes a Dysonian-shaped profile at x≥0.5, whereas, at these x values, AFM measurements show an increasing surface roughness. It is suggested that the last could cause the formation of surface polaritons at the origin of the particular ESR spectral profile observed at these high Gd doping levels. |
| format | Article |
| id | doaj-art-cdb9a3aa24114228ac9c3e7ce60b611b |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-cdb9a3aa24114228ac9c3e7ce60b611b2025-02-03T06:08:35ZengWileyJournal of Spectroscopy2314-49202314-49392015-01-01201510.1155/2015/491840491840Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped CeriaCesare Oliva0Francesco Orsini1Serena Cappelli2Paolo Arosio3Mattia Allieta4Mauro Coduri5Marco Scavini6Dipartimento di Chimica, Università di Milano, Via C. Golgi 19, 20133 Milano, ItalyDipartimento di Fisica, Università di Milano, Via Celoria 16, 20133 Milano, ItalyDipartimento di Chimica, Università di Milano, Via C. Golgi 19, 20133 Milano, ItalyDipartimento di Fisica, Università di Milano, Via Celoria 16, 20133 Milano, ItalyDipartimento di Chimica, Università di Milano, Via C. Golgi 19, 20133 Milano, ItalyIstituto per l’Energia e le Interfasi (IENI), Consiglio Nazionale delle Ricerche (CNR), Corso Promessi Sposi 29, 23900 Lecco, ItalyDipartimento di Chimica, Università di Milano, Via C. Golgi 19, 20133 Milano, ItalyA combined electron spin resonance (ESR) and atomic force microscopy (AFM) study on Ce1−xGdxO2−x/2 samples is here presented, aimed at investigating the evolution of the ESR spectral shape as a function of x in a wide composition range. At low x=0.02, the spectrum is composed of features at geff≈2; 2.8; 6. With increasing x, this pattern merges into a single geff≈2 broad ESR curve, which assumes a Dysonian-shaped profile at x≥0.5, whereas, at these x values, AFM measurements show an increasing surface roughness. It is suggested that the last could cause the formation of surface polaritons at the origin of the particular ESR spectral profile observed at these high Gd doping levels.http://dx.doi.org/10.1155/2015/491840 |
| spellingShingle | Cesare Oliva Francesco Orsini Serena Cappelli Paolo Arosio Mattia Allieta Mauro Coduri Marco Scavini Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped Ceria Journal of Spectroscopy |
| title | Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped Ceria |
| title_full | Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped Ceria |
| title_fullStr | Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped Ceria |
| title_full_unstemmed | Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped Ceria |
| title_short | Electron Spin Resonance and Atomic Force Microscopy Study on Gadolinium Doped Ceria |
| title_sort | electron spin resonance and atomic force microscopy study on gadolinium doped ceria |
| url | http://dx.doi.org/10.1155/2015/491840 |
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