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(a) Explain, in brief, primitive cell andBravais lattices3

AnswerΒ» <p>During this course we will focus on discussingcrystalswith a discrete translational symmetry, i.e.crystalswhich are formed by the combination of aBravais latticeand a correspondingbasis.</p><p>Despite this restriction there are still many differentlatticesleft satisfying the condition. However, there are somelatticestypes that occur particularly often in nature. Or some - actually distinct -latticesshare certain properties. These aspects arise from the symmetry of thelattices.</p><p>Furthermore, when describing spatial arrangements of objects this is done by using a cordinate system. The choice of the coordinate system (e.g. cartesian, cylindrical, spherical, ...) usually depends on the symmetry as well. Therefore it is helpful to classifycrystal structuresaccording to its symmetry.</p> <p>wrong replied πŸ™„</p>


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