The piezoelectric effect of second order in stress or strain: its form for crystals and quasicrystals of any symmetry

The restrictions on the coefficients describing the piezoelectric effect of second order in stress or strain are given for all the orientations that can be expressed by the sequence of elements in the Hermann–Mauguin symbol of the crystal or quasicrystal point group.

A systematic approach to the derivation of standard orientation-location parts of symmetry-operation symbols

A new approach to the derivation of standard orientation-location parts of symmetry-operation symbols from symmetry matrices is described. The method is also applicable to the symmetry operations in non-conventional space-group settings and its standardization procedure may be used in other derivation techniques.

The electron-spin–nuclear-spin interaction studied by polarized neutron scattering

The directional properties of electron–proton spin interaction in an external magnetic field give rise to an anisotropic distribution of the intensity of polarized neutron scattering from dynamically polarized protons of radical molecules in solution.

The crystallographic fast Fourier transform. Recursive symmetry reduction

Algorithms are presented for maximally efficient computation of the crystallographic fast Fourier transform (FFT). The approach is applicable to all 230 space groups and allows reduction in both the computation time and the memory usage by a factor equal to the number of symmetry operators. The central idea is a recursive reduction of the problem to a series of transforms on grids with no special points.

An analytical expression for the characteristic length scale for randomly faulted hexagonal close-packed structures

An analytical expression for the characteristic length scale of the pair correlation functions for faulted hexagonal close-packed structures is derived.

Complete online set of International tables for crystallography

Report of the Executive Committee for 2006

Prices of IUCr journals