Difference between revisions of "Lattice:AlB2"

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(Particle B: inner)
(Particle Positions (basis vectors))
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* <math> 2 \, \mathrm{inner} \, \times \, 1 = 2</math>
 
* <math> 2 \, \mathrm{inner} \, \times \, 1 = 2</math>
 
** <math>\left(\frac{1}{3},\frac{1}{3},\frac{1}{2} \right), \, \left(\frac{2}{3},\frac{2}{3},\frac{1}{2} \right),</math>
 
** <math>\left(\frac{1}{3},\frac{1}{3},\frac{1}{2} \right), \, \left(\frac{2}{3},\frac{2}{3},\frac{1}{2} \right),</math>
 +
 +
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===Particle Positions (Cartesian coordinates)===
 +
 +
====Particle A: corners====
 +
* <math>\left(0,0,0\right), \, (0,0,1), \, (0,1,0), \, (1,0,0), \, (0,1,1), \, (1,0,1), \, (1,1,0), \, (1,1,1)</math>
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====Particle B: inner====
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* <math>\left(\frac{1}{3},\frac{1}{3},\frac{1}{2} \right), \, \left(\frac{2}{3},\frac{2}{3},\frac{1}{2} \right),</math>
  
 
===Examples===
 
===Examples===

Revision as of 10:15, 14 October 2014

Canonical AlB2

Symmetry

  • Crystal Family: Hexagonal
  • Space Group: P6/mmm, No. 191
  • Particles per unit cell: Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n=3}
    • 'inner' particles: Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 2}
    • 'corner' particles: Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 1}
  • Dimensionality: Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle d=3}

Particle Positions (basis vectors)

There are 10 positions, with 3 particles in the unit cell

Particle A: corners

These are the corners of the hexagonal frame. There are 8 corner positions, which contributes a total of 1 particle.

  • Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 8 \, \mathrm{corners}: \frac{1}{12} + \frac{1}{6} + \frac{1}{12} + \frac{1}{6} + \frac{1}{12} + \frac{1}{6} + \frac{1}{12} + \frac{1}{6} = 1}
    • Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left(0,0,0\right), \, (0,0,1), \, (0,1,0), \, (1,0,0), \, (0,1,1), \, (1,0,1), \, (1,1,0), \, (1,1,1)}

Particle B: inner

These are the two inner particles.

  • Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle 2 \, \mathrm{inner} \, \times \, 1 = 2}
    • Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left(\frac{1}{3},\frac{1}{3},\frac{1}{2} \right), \, \left(\frac{2}{3},\frac{2}{3},\frac{1}{2} \right),}


Particle Positions (Cartesian coordinates)

Particle A: corners

  • Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left(0,0,0\right), \, (0,0,1), \, (0,1,0), \, (1,0,0), \, (0,1,1), \, (1,0,1), \, (1,1,0), \, (1,1,1)}

Particle B: inner

  • Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \left(\frac{1}{3},\frac{1}{3},\frac{1}{2} \right), \, \left(\frac{2}{3},\frac{2}{3},\frac{1}{2} \right),}

Examples

Elemental

None

Atomic

Nano