Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 19-27 |
| Seitenumfang | 9 |
| Fachzeitschrift | Zeitschrift für Physik B Condensed Matter and Quanta |
| Jahrgang | 30 |
| Ausgabenummer | 1 |
| Publikationsstatus | Veröffentlicht - März 1978 |
| Extern publiziert | Ja |
Abstract
Neutron activated20F nuclei (T1/2=11 s) in CaF2 serve for two purposes: first they produce well defined point defects by their (n, γ)-production mechanism, second, they act as probes to detect the properties of these defects in a β- and γ-ray detected nuclear magnetic resonance experiment. Below about 70 K an interstitial defect is observed due to a quadrupolar splitting of the20F-NMR line. The defect induced electric field gradient is oriented along the 〈111〉-axis of the crystal and causes a quadrupole coupling constant e2qQ/h=-2.0(1) MHz at the20F site. The defect anneals above 70 K with an Arrhenius like temperature dependence corresponding to an activation energy EM=0.17(4) eV.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Zeitschrift für Physik B Condensed Matter and Quanta, Jahrgang 30, Nr. 1, 03.1978, S. 19-27.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Structure and annealing of (n, γ)-Induced point defects in CaF2
AU - Stöckmann, H. J.
AU - Dubbers, D.
AU - Grupp, M.
AU - Grupp, H.
AU - Ackermann, H.
AU - Heitjans, P.
PY - 1978/3
Y1 - 1978/3
N2 - Neutron activated20F nuclei (T1/2=11 s) in CaF2 serve for two purposes: first they produce well defined point defects by their (n, γ)-production mechanism, second, they act as probes to detect the properties of these defects in a β- and γ-ray detected nuclear magnetic resonance experiment. Below about 70 K an interstitial defect is observed due to a quadrupolar splitting of the20F-NMR line. The defect induced electric field gradient is oriented along the 〈111〉-axis of the crystal and causes a quadrupole coupling constant e2qQ/h=-2.0(1) MHz at the20F site. The defect anneals above 70 K with an Arrhenius like temperature dependence corresponding to an activation energy EM=0.17(4) eV.
AB - Neutron activated20F nuclei (T1/2=11 s) in CaF2 serve for two purposes: first they produce well defined point defects by their (n, γ)-production mechanism, second, they act as probes to detect the properties of these defects in a β- and γ-ray detected nuclear magnetic resonance experiment. Below about 70 K an interstitial defect is observed due to a quadrupolar splitting of the20F-NMR line. The defect induced electric field gradient is oriented along the 〈111〉-axis of the crystal and causes a quadrupole coupling constant e2qQ/h=-2.0(1) MHz at the20F site. The defect anneals above 70 K with an Arrhenius like temperature dependence corresponding to an activation energy EM=0.17(4) eV.
UR - http://www.scopus.com/inward/record.url?scp=33750301265&partnerID=8YFLogxK
U2 - 10.1007/BF01323665
DO - 10.1007/BF01323665
M3 - Article
AN - SCOPUS:33750301265
VL - 30
SP - 19
EP - 27
JO - Zeitschrift für Physik B Condensed Matter and Quanta
JF - Zeitschrift für Physik B Condensed Matter and Quanta
SN - 0340-224X
IS - 1
ER -