Bitte benutzen Sie diese Referenz, um auf diese Ressource zu verweisen: doi:10.22028/D291-24075
Titel: EPR optical detection of F centre pairs in alkali halides. - II : Spin-lattice relaxation of the F centre in its relaxed excited state
Verfasser: Ruedin, Y.
Schnegg, P. A.
Jaccard, C.
Aegerter, Michel A.
Sprache: Englisch
Erscheinungsjahr: 1973
Quelle: Physica status solidi / B. - 55. 1973, 1, S. 215-223
SWD-Schlagwörter: Relaxation
Elektronenspinresonanz
Detektion
Halogenide
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumentart : Journalartikel
Kurzfassung: Like the EPR line of the fundamental state of the F centre in most of the alkali halide crystals, the line attributed to the relaxed excited state, detected optically for F-centre pairs is also Gaussian in shape. That is explained by an inhomogeneous broadening due to hyperfine interactions with the surrounding nuclei. The measurements of these resonances as a function of the microwave power allowed one to determine the saturation parameter and the broadening of the elementary line (homogeneous). On the other hand the measurement of the resonance signal as a function of temperature, the other parameters remaining constant, shows that it stays constant for T < 10°K and decreased for increasing temperature. This is attributed to the spin-lattice relaxation time T1 of the defect in its relaxed excited state. The relaxation mechanism is characterized by an Orbach process.
Link zu diesem Datensatz: urn:nbn:de:bsz:291-scidok-22218
hdl:20.500.11880/24131
http://dx.doi.org/10.22028/D291-24075
SciDok-Publikation: 14-Jul-2009
Fakultät: Sonstige Einrichtungen
Fachrichtung: SE - INM Leibniz-Institut für Neue Materialien
Fakultät / Institution:INM
SE - Sonstige Einrichtungen

Dateien zu dieser Ressource:
Datei Beschreibung GrößeFormat 
aeg028.pdf492,4 kBAdobe PDFÖffnen/Anzeigen


Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt.