X-ray topography studies of dislocations in single crystal CVD diamond

Comparing phonon dephasing lifetimes in diamond using Transient Coherent Ultrafast Phonon Spectroscopy

“…The second sample was a natural type IIa slab of dimensions 3 × 3 × 0.25 mm. Such samples, whilst typically pure, with a N and B concentration of less than 1 ppm, have a high dislocation density of order ∼ 10 8 − 10 9 cm − 2 [14]. Indeed imaging under crossed polarizers (Fig.…”

“…(14) to maintain commutator relations for B̂such that 〈½B i ðtÞ;B † i ðtÞ 〉 =1 for all times. Alternatively we may use the normally ordered operator when calculating expectation values for the same effect [4,23].…”

Developments in synthesis, characterization, and application of large, high-quality CVD single crystal diamond

“…20, c and d). These dislocations have line directions close to the <001> growth direction of single-crystal CVD diamond as previously observed [76]. In several CVD diamond single crystals, viewing only part or one section of the diamond, when rocking crystal near the diffraction angle, suggests that diamond lattice planes are bent, an effect that originates from specific growth parameters used [77].…”

X-Ray Topographic Study of a Homoepitaxial Diamond Layer on an Ultraviolet-Irradiated Precision Polished Substrate

“…1eh. XRT produces two-dimensional images of X-ray diraction intensities, and these images can provide a distribution map of dislocations in a single crystal [19,20]. The bright areas represent areas virtually free of all defects.…”