| 摘要 |
<p>A magneto-optical device the composition of whose material is expressed by (Cd1-x-yMnxHgy)1Te1 (0 < x < 1, 0 < y < 1) and which can be used in regions in the vicinities of 0.98 νm, 1.017 νm, 1.047 νm and 1.064 νm wavelength. The device comprises a single crystal having the composition defined by four points a, b, c and d of Mn0.5Hg0.5Te, Mn0.6Hg0.4Te, Cd0.83Mn0.13Hg0.04Te and Cd0.83Mn0.05Hg0.12Te in the pseudo-ternary phase diagram of MnTe-HgTe-CdTe, having a thickness of at least 300 νm and not substantially containing twins and composition segregation. The device is produced by melting the starting materials in which Te is blended in excess in a proportion of 0.001 to 0.1 with respect to the target composition, at a pressure corresponding to the vapor pressure of Hg, quenching and solidifying the molten materials to obtain a polycrystalline body and growing a single crystal by a solid phase reaction in an atmosphere of a temperature lower than the phase transformation point of the polycrystalline body at a pressure corresponding to the vapor pressure of Hg.</p> |
