Bragg Rocking Curve
A crystal rocks either side of the Bragg setting while the reflected ray swings through twice that angle and its intensity meter collapses and recovers as the condition is lost and met again.
CSS
Crystallography
15 animationsBurgers Circuit
A counting circuit is traced round a dislocation core over a lattice of crosses, stops one translation short of closing, and the Burgers vector is drawn across the failure.
CSSDislocation Glide
An edge dislocation symbol glides along its slip plane across a stack of lattice planes, laying down the swept slip area behind it until it reaches the free surface.
CSSGrain Growth
Columnar grain boundaries migrate across the field so one grain takes area from both neighbours, each grain's orientation tick riding with the centre of the grain it marks.
CSSLaue Spot Plate
Reflections on a four-fold Laue plate flare ring by ring outward from the beam stop, the exposure brightening and relaxing so the intensity falls off with scattering angle.
CSSMiller Plane Sweep
A family of lattice planes rotates through the (100), (110) and (210) orientations over a reference cell, the set closing up as the indices rise so the interplanar spacing reads off the drawing.
CSSOctahedral Tilt
A corner-sharing octahedral framework rocks as a rigid unit, neighbours turning in opposite senses so the bridging corners stay shared while the cavities between them open and close.
CSSPole Figure
Poles on a stereographic net disperse across the whole disc and gather back onto a single texture component while the intensity contour round them fades and sharpens.
CSSPowder Scan
A goniometer head tracks across the two-theta axis of a powder diffractogram and each reflection brightens as the head crosses it, then parks at the end of its travel.
CSSReciprocal Lattice
A direct lattice stretched along one axis is shown beside its reciprocal, which closes up along the same axis by exactly the inverse factor, with calipers under each panel carrying the ratio.
CSSStacking Fault
Close-packed layers seen in elevation shear above a fault plane by one third of the in-plane repeat, the registry lanes at the right stepping across as the sequence breaks and heals.
CSSSymmetry Orbit
A plane-group cell tiled across the field carries its rotation points, glide lines and the faint orbit of a general position, with the live motif stepping a quarter turn round the four-fold point.
CSSTwin Band
A deformation twin narrows to a sliver and grows back across a ruled matrix, its two composition planes moving apart by equal and opposite distances while the ruling inside stays mirrored.
CSSUnit Cell Settings
Three projected unit-cell wireframes over a reference lattice net shear and compress from cubic through tetragonal to monoclinic on a stagger while the net behind them holds still.
CSSVacancy Hop
A close-packed plane holds one empty site and neighbouring atoms hop into it in turn, so the vacancy walks a full circuit of the ring and the lattice returns to where it started.
CSS