Circular dichroism spectra of synthetic amethyst crystals
Tóm tắt
The axial circular-dichroism spectrum of a synthetic amethyst crystal has been studied for the first time. Bands both of the positive and negative signs are revealed. New information on the color centers of amethyst and their electronic structure is obtained.
Tài liệu tham khảo
V. S. Balitskii, V. E. Khadzhi, B. A. Dorogovin, et al., Synthesis of Minerals (VNIISIMS, Aleksandrov, 2000), Vol. 1.
G. R. Rossman, Rev. Mineral. 29, 433 (1994).
G. Lehmann, Z. Naturforch. A 22(12), 2080 (1967).
R. T. Cox, J. Phys. C: Solid State Phys. 9, 3355 (1976).
R. T. Cox, J. Phys. C: Solid State Phys. 10(22), 4631 (1977).
V. I. Burkov, A. V. Egorysheva, and Yu. F. Kargin, Zh. Neorg. Khim. 48(4), 620 (2003).
G. Cressey, C. M. B. Henderson, and G. van der Lann, Phys. Chem. Mineral. 20, 111 (1993).
M. F. Vereshchak, A. K. Zhetbaev, D. K. Kaipov, and K. K. Satpaev, Fiz. Tverd. Tela (Leningrad) 14(10), 3082 (1972) [Sov. Phys. Solid State 14, 2638 (1972)].
C. Frondel, The System of Mineralogy, 7th ed. (Wiley, New York, 1962), Vol. 3.
N. M. Melankholin and L. I. Tsinober, Kristallografiya 7(1), 110 (1963) [Sov. Phys. Crystallogr. 7, 97 (1963)].
T. I. Barry, P. McNamara, and W. J. Moore, J. Chem. Phys. 42(7), 2599 (1965).
S. Pancharatnam, Proc. Indian Acad. Sci., Sect. A 40(6), 196 (1954).
L. G. Chentsova, L. I. Tsinober, and M. I. Samoilovich, Kristallografiya 11(2), 236 (1966) [Sov. Phys. Crystallogr. 11, 219 (1966)].
A. Lever, Inorganic Electronic Spectroscopy (Elsevier, Amsterdam, 1984; Mir, Moscow, 1987), Part 1.
L. E. Halliburton, L. A. Kappers, A. F. Armington, and J. Larkin, J. Appl. Phys. 51(4), 2193 (1980).
V. A. Kizel’ and V. I. Burkov, Crystal Gyrotropy (Nauka, Moscow, 1980) [in Russian].