OXYGEN HOLE-CENTERS IN COESITE, A HIGH-PRESSURE PHASE OF SIO2

Authors
OGOH K YAMANAKA C IKEYA M ITO E
Citation
K. Ogoh et al., OXYGEN HOLE-CENTERS IN COESITE, A HIGH-PRESSURE PHASE OF SIO2, Applied magnetic resonance, 9(4), 1995, pp. 533-538
Citations number
14
Categorie Soggetti
Spectroscopy,"Physics, Atomic, Molecular & Chemical
Journal title
Applied magnetic resonance → ACNP
ISSN journal
09379347
Volume
9
Issue
4
Year of publication
1995
Pages
533 - 538
Database
ISI
SICI code
0937-9347(1995)9:4<533:OHICAH>2.0.ZU;2-V
Abstract
Electron spin resonance (ESR) spectra have been measured for coesite s ynthesized under high pressure condition from natural quartz and irrad iated by gamma-rays at 77 K. The prominent signals detected at 77 K ha ve an anisotropic g-factor of orthorhombic symmetry, g(1) = 2.0015, g( 2) = 2.0055 and g(3) = 2.065 and are ascribed to an oxygen related hol e center in coesite. The observed signal at g(parallel to) = 2.0033 an d g(perpendicular to) = 2.0085 might be related with an O- or O-2-type hole center.