Про новий кристал LiNH4SO4 з ізотропною точкою

• Date: 2012
• Main Authors: Stadnyk, V.Yo., Romanyuk, M.O., Brezvin, R.S.
• Format: Article
• Language: Ukrainian; English
• Published: Publishing house "Academperiodika" 2012
• Subjects: -
• Online Access: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2021129
• Journal Title: Ukrainian Journal of Physics

LiNH4SO4 crystals of α-modification were grown up, and the spectral dependences of their refractive indices and birefringence are studied. The intersection of ni(λ) curves is found, which testifies to the inversion of birefringence sign (Δny = 0) at the light wavelength λ0 ≈ 683 nm at room temperatu...