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

fYear

2010

fDate

9-11 Dec. 2010

Firstpage

3

Lastpage

6

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/MNST.2010.5687124

Filename

5687124