Boron Fullerenes

Authored by: Arta Sadrzadeh , Boris I. Yakobson

2 Handbook of Nanophysics

Print publication date:  September  2010
Online publication date:  September  2010

Print ISBN: 9781420075540
eBook ISBN: 9781420075557
Adobe ISBN:


 Download Chapter



There are three phases for the bulk boron: ?-rhombohedral, ?-rhombohedral [1,2], and ?-tetragonal [3]. ?-Rhombohedral is made of B12 units, with lattice constant 5.30 Å and angle 58.13° [4] (Figure 47.1). Each B12 icosahedron is slightly distorted due to the Jahn–Teller effect, reducing the symmetry from Ih to D3d [4]. ?-Rhombohedral has a somewhat complicated unit cell, composed of 105 atoms, with lattice constant 10.15 Å and angle 65.17° [2,5]. A striking B84 structure with icosahedral symmetry can be identified in ?-rhombohedral [6]. ?-Tetragonal unit cell is made of 50 atoms, with lattice constants a = 8.75 Å and c = 5.06 Å [4]. It contains four B12 icosahedra and two isolated 4-bonded atoms. Recently, by means of ab initio studies, it has been shown that ?-rhombohedral is more stable than ?-rhombohedral [7]. ?-Rhombohedral bulk is a semiconducting material with an energy gap of ~2 eV [4].

Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.