E. Siderashaddad et al., TIME-DEPENDENT PERTURBED ANGULAR-DISTRIBUTION STUDIES OF CHEMICAL-VAPOR-DEPOSITED DIAMOND, DIAMOND AND RELATED MATERIALS, 3(1-2), 1994, pp. 151-154
The time differential perturbed angular distribution technique has bee
n applied to studies in synthetic diamond grown by the chemical vapor
deposition method. It was found that the F-19 nuclear probe used occup
ies only one characteristic lattice site associated with a coupling fr
equency of 63(3) MHz. This result represents a starkly different situa
tion when compared with previous findings from extensive investigation
s on three different types of natural diamond, as well as on synthetic
diamond grown under high temperature, high pressure conditions. Such
comparison has revealed the role of hydrogen in the different types of
diamond and its particular chemical form of occurrence. As hydrogen s
eems to play an important role in different methods of synthesis, thes
e findings give a first insight into such synthesis aspects.