𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Carbon in β-rhombohedral boron

✍ Scribed by Helmut Werheit; Udo Kuhlmann; Torsten Lundström

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
362 KB
Volume
36
Category
Article
ISSN
0921-5107

No coin nor oath required. For personal study only.

✦ Synopsis

Carbon atoms in the//-rhombohedral boron structure substitute for boron atoms at the polar sites of the B~2 icosahedra. The donor level of the excess electron of carbon coincides with the upper valence band, thus raising the hopping probability within this band. This assumption is consistent with various experimental results. The ionisation energy of the intrinsic electron trapping levels is slightly different for Bt2 and B,IC icosahedra. The photoconductivity and quotient spectra of the reflectivities of differently doped samples indicate carbon-induced changes in the density of states within the energy bands.

📜 SIMILAR VOLUMES

The Complete Optical Spectrum ofβ-Rhombo
The Complete Optical Spectrum ofβ-Rhombohedral Boron
✍ H. Werheit; R. Schmechel 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 198 KB

To give a quantitative overview of the interaction between electromagnetic waves and icosahedral boron-rich solids, the reflectivity and absorption index spectra of -rhombohedral boron between dc and about 250 eV are presented. They are put together from reliable results obtained from literature and

Thermoelectric Properties of Metal-Doped
Thermoelectric Properties of Metal-Doped β-Rhombohedral Boron
✍ Takahiro Nakayama; Junichiro Shimizu; Kaoru Kimura 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 256 KB

Rhombohedral boron ( -rh. boron) was doped with V, Cr, Fe, Co, or Zr to investigate the relationship between occupancies of the doping sites and thermoelectric properties. Doping with V or Cr, which preferentially occupy the A 1 sites, produces an increase in electrical conductivity and a negative S