Incommensurate composite modulated structures and beyond

Brock Structures of incommensurate and commensurate composite crystals

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Amorphous structures and incommensurate phases

2014 A comparison is made between incommensurate phases related with the well known Frendel-Kontorova problem, and amorphous structures, on the basis of a problem of conflict between different symmetries. This similarity leads to a fruitful comparison of solutions with the introduction of a 3-dimensional devil’s staircase for the characterization of amorphous structures. Finally for amorphous s...

Alternating commensurate - incommensurate structures in the magnetic

The magnetic phase diagram of the quasi one-dimensional spinchain system CsNiF 3 below the Néel temperature is determined. For magnetic fields perpendicular to the spin chains incommensurate phases are predicted. From linear spin-wave theory we obtain the instability line of the paramagnetic phase as a function of the strength and the direction of the field. The system undergoes a transition to...

Commensurate and Incommensurate Structures in a Nonequilibrium System

Deformation Characteristics of Composite Structures

The composites provide design flexibility because many of them can be moulded into complex shapes. The carbon fibre-reinforced epoxy composites exhibit excellent fatigue tolerance and high specific strength and stiffness which have led to numerous advanced applications ranging from the military and civil aircraft structures to the consumer products. However, the modelling of the beams undergoin...