Accession Number:

AD0658649

Title:

ELECTRON PARAMAGNETIC RESONANCE OF CERTAIN COLOR CENTERS IN ALKALI-HALIDE CRYSTALS,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1967-01-23

Pagination or Media Count:

13.0

Abstract:

KCl crystals with a concentration of 5.10 to the 16th power to 2.10 to the 17 powercu. cm. F-centers were split in halves. The EPR of the original half, used as a standard, exhibited a strong signal with a signal-noise ratio of 100. In the second half the F-centers were destroyed by optical and thermal treatment, and F2 centers formed. EPR in these specimens was absent. Hyperfine structure of EPR lines of F-centers in KCl was observed at 20.4K. The average splitting was approx. 9, which was higher than the 7.72 observed by Feber. St 77K, the hyperfine structure dissappeared. The half-width of the lines at 77 and 20.4K was 58 and 60 oe respectively. Apparently, the EPR lines did not narrow in the range 300-20.4K. Author

Subject Categories:

  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE