RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2.

Publikation: Beitrag in FachzeitschriftKonferenzaufsatz in FachzeitschriftForschungPeer-Review

Autoren

  • W. Buttler
  • H. J. Stoeckmann
  • F. Fujara
  • P. Heitjans
  • G. Kiese
  • H. Ackermann
  • B. Bader
  • K. Doerr
  • H. Grupp
  • H. Lauter

Externe Organisationen

  • Ruprecht-Karls-Universität Heidelberg
  • Institut Laue-Langevin
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)c6. 381-c6. 384
FachzeitschriftJournal de physique. Colloque
Jahrgang41
Ausgabenummer7
PublikationsstatusVeröffentlicht - 1979
Extern publiziertJa
VeranstaltungEurophys Top Conf, 3rd, Lattice Defects in Ionic Cryst - Canterbury, Engl
Dauer: 17 Sept. 197921 Sept. 1979

Abstract

Single crystals of several alkaline earth fluorides were irradiated with thermal polarized neutrons at various temperatures. The neutron capture process **1**9F(n, gamma )**2**0F produces recoil displaced **2**0F ions (recoil energy: several hundred ev) and simultaneously some nearby point defects. These defects were studied by their influence on the **2**0F NMR spectrum monitored by the asymmetric beta -decay of the polarized **2**0F nuclei. In the cubic crystals CaF//2, SrF//2 and BaF//2 one annealing step was observed in the region of 60-100 K corresponding to an activation enthalpy of about 0. 2 ev. A second step occurs near 220 K, corresponding to about 0. 6 ev. In tetragonal MgF//2 two annealing steps were observed at 13 and 60 K corresponding to 0. 037 and 0. 17 ev, respectively.

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Zitieren

RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2. / Buttler, W.; Stoeckmann, H. J.; Fujara, F. et al.
in: Journal de physique. Colloque, Jahrgang 41, Nr. 7, 1979, S. c6. 381-c6. 384.

Publikation: Beitrag in FachzeitschriftKonferenzaufsatz in FachzeitschriftForschungPeer-Review

Buttler, W, Stoeckmann, HJ, Fujara, F, Heitjans, P, Kiese, G, Ackermann, H, Bader, B, Doerr, K, Grupp, H & Lauter, H 1979, 'RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2.', Journal de physique. Colloque, Jg. 41, Nr. 7, S. c6. 381-c6. 384.
Buttler, W., Stoeckmann, H. J., Fujara, F., Heitjans, P., Kiese, G., Ackermann, H., Bader, B., Doerr, K., Grupp, H., & Lauter, H. (1979). RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2. Journal de physique. Colloque, 41(7), c6. 381-c6. 384.
Buttler W, Stoeckmann HJ, Fujara F, Heitjans P, Kiese G, Ackermann H et al. RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2. Journal de physique. Colloque. 1979;41(7):c6. 381-c6. 384.
Buttler, W. ; Stoeckmann, H. J. ; Fujara, F. et al. / RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2. in: Journal de physique. Colloque. 1979 ; Jahrgang 41, Nr. 7. S. c6. 381-c6. 384.
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title = "RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2.",
abstract = "Single crystals of several alkaline earth fluorides were irradiated with thermal polarized neutrons at various temperatures. The neutron capture process **1**9F(n, gamma )**2**0F produces recoil displaced **2**0F ions (recoil energy: several hundred ev) and simultaneously some nearby point defects. These defects were studied by their influence on the **2**0F NMR spectrum monitored by the asymmetric beta -decay of the polarized **2**0F nuclei. In the cubic crystals CaF//2, SrF//2 and BaF//2 one annealing step was observed in the region of 60-100 K corresponding to an activation enthalpy of about 0. 2 ev. A second step occurs near 220 K, corresponding to about 0. 6 ev. In tetragonal MgF//2 two annealing steps were observed at 13 and 60 K corresponding to 0. 037 and 0. 17 ev, respectively.",
author = "W. Buttler and Stoeckmann, {H. J.} and F. Fujara and P. Heitjans and G. Kiese and H. Ackermann and B. Bader and K. Doerr and H. Grupp and H. Lauter",
year = "1979",
language = "English",
volume = "41",
pages = "c6. 381--c6. 384",
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issn = "0449-1947",
publisher = "Springer Verlag",
number = "7",
note = "Europhys Top Conf, 3rd, Lattice Defects in Ionic Cryst ; Conference date: 17-09-1979 Through 21-09-1979",

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Download

TY - JOUR

T1 - RADIATION INDUCED POINT DEFECTS IN CaF2, SrF2, BaF2 AND MgF2.

AU - Buttler, W.

AU - Stoeckmann, H. J.

AU - Fujara, F.

AU - Heitjans, P.

AU - Kiese, G.

AU - Ackermann, H.

AU - Bader, B.

AU - Doerr, K.

AU - Grupp, H.

AU - Lauter, H.

PY - 1979

Y1 - 1979

N2 - Single crystals of several alkaline earth fluorides were irradiated with thermal polarized neutrons at various temperatures. The neutron capture process **1**9F(n, gamma )**2**0F produces recoil displaced **2**0F ions (recoil energy: several hundred ev) and simultaneously some nearby point defects. These defects were studied by their influence on the **2**0F NMR spectrum monitored by the asymmetric beta -decay of the polarized **2**0F nuclei. In the cubic crystals CaF//2, SrF//2 and BaF//2 one annealing step was observed in the region of 60-100 K corresponding to an activation enthalpy of about 0. 2 ev. A second step occurs near 220 K, corresponding to about 0. 6 ev. In tetragonal MgF//2 two annealing steps were observed at 13 and 60 K corresponding to 0. 037 and 0. 17 ev, respectively.

AB - Single crystals of several alkaline earth fluorides were irradiated with thermal polarized neutrons at various temperatures. The neutron capture process **1**9F(n, gamma )**2**0F produces recoil displaced **2**0F ions (recoil energy: several hundred ev) and simultaneously some nearby point defects. These defects were studied by their influence on the **2**0F NMR spectrum monitored by the asymmetric beta -decay of the polarized **2**0F nuclei. In the cubic crystals CaF//2, SrF//2 and BaF//2 one annealing step was observed in the region of 60-100 K corresponding to an activation enthalpy of about 0. 2 ev. A second step occurs near 220 K, corresponding to about 0. 6 ev. In tetragonal MgF//2 two annealing steps were observed at 13 and 60 K corresponding to 0. 037 and 0. 17 ev, respectively.

UR - http://www.scopus.com/inward/record.url?scp=0018493870&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0018493870

VL - 41

SP - c6. 381-c6. 384

JO - Journal de physique. Colloque

JF - Journal de physique. Colloque

SN - 0449-1947

IS - 7

T2 - Europhys Top Conf, 3rd, Lattice Defects in Ionic Cryst

Y2 - 17 September 1979 through 21 September 1979

ER -

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