Gippius, A. A. ; Morozova, E. N. ; Antipov, E. V. ; Abakumov, A. M. ; Rozova, M. G. ; Luders, K. ; Hoffmann, W. ; Buntkowsky, G. ; Klein, O. (2000)
Magnetic flux dynamics and structural features in fluorinated HgBa2CuO4 as probed by F-19 NMR.
In: Physical Review B, 61 (21)
doi: 10.1103/PhysRevB.61.14370
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
F-19 NMR spectra and spin-lattice relaxation rates have been measured on two powder HgBa2CuO4Fx samples. The results combined with our neutron powder-diffraction data A. M. Abakumov rt al., Phys. Rev. Lett. 80, 385 (1998) confirm that fluorine atoms can be successfully incorporated in the lattice of superconducting Hg-1201 phase in the nonstoichiometric O3 site. Partial occupation of another oxygen position by fluorine atoms reveals to be possible with the increase of F content. The temperature dependence of the F-19 NMR linewidth reveals the crossover at 35 K in the magnetic-flux line structure between the low-temperature latticelike regime and high-temperature "melted" regime. For the 1/T-1 temperature dependence a maximum has been found at 65 K indicating the strong influence of magnetic-flux line motion on the F-19 spin-lattice relaxation rate.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2000 |
| Autor(en): | Gippius, A. A. ; Morozova, E. N. ; Antipov, E. V. ; Abakumov, A. M. ; Rozova, M. G. ; Luders, K. ; Hoffmann, W. ; Buntkowsky, G. ; Klein, O. |
| Art des Eintrags: | Bibliographie |
| Titel: | Magnetic flux dynamics and structural features in fluorinated HgBa2CuO4 as probed by F-19 NMR |
| Sprache: | Englisch |
| Publikationsjahr: | 2000 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 61 |
| (Heft-)Nummer: | 21 |
| DOI: | 10.1103/PhysRevB.61.14370 |
| Kurzbeschreibung (Abstract): | F-19 NMR spectra and spin-lattice relaxation rates have been measured on two powder HgBa2CuO4Fx samples. The results combined with our neutron powder-diffraction data A. M. Abakumov rt al., Phys. Rev. Lett. 80, 385 (1998) confirm that fluorine atoms can be successfully incorporated in the lattice of superconducting Hg-1201 phase in the nonstoichiometric O3 site. Partial occupation of another oxygen position by fluorine atoms reveals to be possible with the increase of F content. The temperature dependence of the F-19 NMR linewidth reveals the crossover at 35 K in the magnetic-flux line structure between the low-temperature latticelike regime and high-temperature "melted" regime. For the 1/T-1 temperature dependence a maximum has been found at 65 K indicating the strong influence of magnetic-flux line motion on the F-19 spin-lattice relaxation rate. |
| Freie Schlagworte: | different oxygen-content spin-lattice relaxation y-89 nmr irreversibility line superconductors yba2cu4o8 vortices |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 27 Okt 2014 20:41 |
| Letzte Änderung: | 12 Jul 2023 08:07 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum