Title :
Acentric phase formation in AgLnX2 (Ln = Dy, Ho, Er; X = S, Se, Te) compounds
Author :
Atuchin, Victor V. ; Piskach, Lyudmyla V. ; Parasyuk, Oleg V.
Author_Institution :
Lab. of Opt. Mater. & Struct., SB RAS, Novosibirsk, Russia
Abstract :
Available information on polymorph modifications observed for AgLnX2 (Ln = Dy, Ho, Er; X = S, Se, Te) compounds has been analyzed comparatively. Cubic poly-morph with mixed (0.5Ag + 0.5Ln) cation positions is generally formed at high temperatures. Formation of monoclinic, orthorhombic and tetragonal acentric crystals is found at low temperature depending on the anion type.
Keywords :
chalcogenide glasses; dysprosium compounds; erbium compounds; holmium compounds; polymorphic transformations; polymorphism; silver compounds; AgDyS2; AgDySe2; AgDyTe2; AgErS2; AgErSe2; AgErTe2; AgHoS2; AgHoSe2; AgHoTe2; acentric phase formation; anion type; cubic polymorph; mixed cation positions; monoclinic acentric crystal; orthorhombic acentric crystal; polymorph modifications; tetragonal acentric crystal; Chemistry; Compounds; Crystals; Erbium; Optical materials; Temperature distribution; Rare earth; selenide; silver; sulfide; telluride;
Conference_Titel :
Fundamental Problems of Micro/Nanosystems Technologies (MNST), 2010 IEEE 2nd Russia School and Seminar on
Conference_Location :
Novosibirsk
Print_ISBN :
978-1-4244-5962-9
Electronic_ISBN :
978-1-4244-5963-6
DOI :
10.1109/MNST.2010.5687124
