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 Results for DC.creator="P." AND DC.creator="Krishna" in section 9.2.1 of volume C   page 1 of 3 pages.
Layer stacking in close-packed structures
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1, pp. 752-760 [ doi:10.1107/97809553602060000618 ]
... layers and a is the diameter of the spheres (Verma & Krishna, 1966). Deviations from the ideal value of the axial ... just fit into this void is given by 0.225R (Verma & Krishna, 1966). The centre of the tetrahedral void is located ... fit into an octahedral void is given by 0.414R (Verma & Krishna, 1966). The centre of this void is located ...

Stacking faults in close-packed structures
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.8, pp. 758-760 [ doi:10.1107/97809553602060000618 ]
... is referred to the articles by Pandey (1984a) and Pandey & Krishna (1982b). Frank (1951) has classified stacking faults as intrinsic ... possible intrinsic fault configurations in the 6H (33) structure (Pandey & Krishna, 1975) but only two of these can result from the ... not result from the precipitation of interstitials (see Pandey, Lele & Krishna, 1980a, b, c; Kabra, Pandey & Lele, 1986). It ...

Determination of the stacking sequence of layers
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.7.4, pp. 757-758 [ doi:10.1107/97809553602060000618 ]
... on SiC-6H, empirical rules framed by Mitchell (1953) and Krishna & Verma (1962) can allow the direct identification of the layer ... for the origin of polytype structures (for details see Pandey & Krishna, 1983). The most probable series of structures as predicted ... 3, 4, 5 and 6 in their Zhdanov sequence (Pandey & Krishna, 1975, Pandey & Krishna, 1976a). For CdI2 and PbI2 ...

Determination of the identity period
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.7.3, p. 757 [ doi:10.1107/97809553602060000618 ]
... 10.l row of spots on an oscillation or Weissenberg photograph (Krishna & Verma, 1963). If the structure contains a random stacking ... Silicon carbide of 594 layers. Acta Cryst. 3, 396-397. Krishna, P. & Verma, A. R. (1963). Anomalies in silicon carbide ...

Determination of the lattice type
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.7.2, p. 757 [ doi:10.1107/97809553602060000618 ]
... International Tables for Crystallography (2006). Vol. C, ch. 9.2, p. 757 International Union of Crystallography 2006 | home | resources | advanced search ...

General considerations
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.7.1, p. 756 [ doi:10.1107/97809553602060000618 ]
... identity period, space group, and hence the complete structure (Verma & Krishna, 1966). Figure 9.2.1.9 | | The a*-b* reciprocal-lattice net for close-packed layer stackings. References Verma, A. R. & Krishna, P. (1966). Polymorphism and polytypism in crystals, New York: ...

Structure determination of close-packed layer stackings
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.7, pp. 756-758 [ doi:10.1107/97809553602060000618 ]
... identity period, space group, and hence the complete structure (Verma & Krishna, 1966). Figure 9.2.1.9 | | The a*-b* reciprocal-lattice net ... 10.l row of spots on an oscillation or Weissenberg photograph (Krishna & Verma, 1963). If the structure contains a random stacking ... on SiC-6H, empirical rules framed by Mitchell (1953) and Krishna & Verma (1962) can allow the direct identification of the ...

Crystallographic uses of Zhdanov symbols
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.6, p. 756 [ doi:10.1107/97809553602060000618 ]
... to derive information about the symmetry and lattice type (Verma & Krishna, 1966). Let n+ and n- be the number of ... identical Zhdanov symbols has been abandoned in recent years (Pandey & Krishna, 1982a). Thus the 15R polytype of SiC is written ... rather than (23)3. As described in detail by Verma & Krishna (1966), if the Zhdanov symbol consists of an odd ...

Possible space groups
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.5, pp. 755-756 [ doi:10.1107/97809553602060000618 ]
Possible space groups 9.2.1.5. Possible space groups It was shown by Belov (1947) that consistent combinations of the possible symmetry elements in close packing of equal spheres can give rise to eight possible space groups: P3m1, , , , , R3m, , and Fm3m. The last space group corresponds to the special case of cubic close ...

Possible lattice types
Pandey, D. and Krishna, P.  International Tables for Crystallography (2006). Vol. C, Section 9.2.1.4, p. 755 [ doi:10.1107/97809553602060000618 ]
... layers (reverse setting) in the direction of z increasing (Verma & Krishna, 1966). Evidently, n must be a multiple of 3 ... X-ray crystallography. New York: John Wiley. Verma, A. R. & Krishna, P. (1966). Polymorphism and polytypism in crystals, New York: ...

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