精品32晶体点群图示.ppt(共52页)【在线阅读】

2023-07-15 01:15:25 本页面

精品32晶体点群图示.ppt(共52页)【在线阅读】

【文档描述】

1、32 crystallographic point gropsWith Gif AnimationsThe 32 crystallographisics4.http:/en.wikipedia.org/wiki/Crystal_system5.http:/en.wikipedia.org/wiki/Space_group。

2、c point groups(point groups consistent with translational symmetry)32 Poals.cmu.edu/degraef/pg/pg.html3.G.Burns,Space Groups for Solid State Phy。

3、int groups can be constructed From 11 initial pure rotational point grouin 3Dreferences1.Lecture Notes,The Univ.of Texas at Austin2.http:/materi。

4、ps inversion centers can be added to produce an additional 11 centrosymmry14 Bravais lattice types into 7 lattice systems Table of space groups 。

5、etric point groups From the centrosymmetric point groups an additional 17 lattice systemsFlowchart for Determining SignificantPoint Group Symmet。

6、0 symmetries can be discoveredCyclic Point GroupsSym.Elem.Sym.Elem.Sym.Em.Sym.Elem.O GroupsSym.Elem.Sym.Elem.crystallographic Point groups into 。

7、lem.Sym.Elem.Sym.Elem.Cyclic+Horizontal Mirror GroupsSym.Elem.Sym.Elem.SCombination with no Unique AxisT GroupsO GroupsT GroupsSym.Elem.Sym.Ele。

8、ym.Elem.Sym.Elem.Sym.Elem.Cyclic+Vertical Mirror GroupsSym.Elem.Sym.ElemElem.Sym.Elem.Dihedral Groups+sdSym.Elem.Sym.Elem.Isometric Groups Roto。

9、Sym.Elem.Sym.Elem.Rotoreflection GroupsSym.Elem.Sym.Elem.Sym.Ebination Elem.Sym.Elem.Sym.Elem.Sym.Elem.Dihedral Groups+shSym.Elem.Sym.Elem.Sym。

10、of rotations with other rotations in other directionsAllowed Combinations of Pure Rotations:Rotations+Perpendicular 2-foldsDihedral(Dn)GroupsSym。

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