Topic
Single crystal
About: Single crystal is a research topic. Over the lifetime, 59617 publications have been published within this topic receiving 870828 citations.
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TL;DR: In this article, large area uniform amorphous layers have been formed on Si crystals by means of 2.5-nsec, 347-nm laser pulses and it was shown that amorphization at the resolidification interface occurs for isotherm threshold velocities of 18 m/sec on Si(001) and 15m/secon Si(111).
Abstract: Large-area, uniform amorphous layers have been formed on Si crystals by means of 2.5-nsec, 347-nm laser pulses. Computations indicate that amorphization at the resolidification interface occurs for isotherm threshold velocities of 18 m/sec on Si(001) and 15 m/sec on Si(111). The amorphous Si is impurity free and structurally similar to conventionally formed material. Below the amorphization velocity thresholds Si(001) reforms good single crystal while Si(111) gives twin defects down to \ensuremath{\sim}6 m/sec---a new defect transition.
149 citations
TL;DR: In this article, Kneer's method for obtaining polycrystal elastic constants from single crystal constants and orientation distribution is extended to orthotropic physical symmetry (rolled sheet) and to cubic crystal symmetry.
148 citations
TL;DR: In this article, coherent averaging techniques were used to examine the 19F shielding tensors of the trifluoromethyl group in single crystals of silver trflluoroacetate.
Abstract: Coherent averaging techniques are used to examine the 19F shielding tensors of the trifluoromethyl group in single crystals of silver trifluoroacetate. At room temperature, where the CF3 groups are rotating rapidly, the spectrum consists of a single line whose orientation dependence allows a determination of the orientation of the CF3 groups in the unit cell. The rigid lattice (40°K) spectra exhibit the six lines expected on the basis of the x‐ray crystal structure, also determined in this work, and allow a determination of all six independent elements of each of the three incongruent chemical shift tensors.
148 citations
TL;DR: In this paper, a single crystal platelet of uranium dioxide has been prepared with one side very nearly parallel to the (111) plane and the other side inclined approximately 11.4° from the ( 111) plane.
148 citations
TL;DR: The 18 vibrational modes expected from group-theoretical analysis have been obtained in the polarized Raman spectra of ZnWO 4 single crystals and six internal modes of the WO 6 octahedra have been assigned.
Abstract: The 18 vibrational modes expected from group-theoretical analysis have been obtained in the polarized Raman spectra of ZnWO 4 single crystals. The six internal modes of the WO 6 octahedra have been assigned. The temperature dependence of the frequencies and linewidths of the internal modes is related to anharmonic terms in the crystal potential
148 citations