Title:

Effect of restricted geometry on structural phase transitions in KH2PO4 and NH4H2PO4 crystals

Group publication title:

Optica Applicata

Creator:

Tarnavich, Vladislav ; Korotkov, Leonid ; Karaeva, Olja ; Naberezhnov, Alexander ; Rysiakiewicz-Pasek, Ewa

Contributor:

Gaj, Miron. Redakcja ; Urbańczyk, Wacław. Redakcja

Subject and Keywords:

optyka ; ferroelectrics ; antiferroelectrics ; composite materials ; porous glass ; phase transition ; dielectric permittivity

Description:

Optica Applicata, Vol. 40, 2010, nr 2, s. 305-309

Abstrakt:

The dielectric response of crystalline NH4H2PO4 and KH2PO4–SiO2 and NH4H2PO4–SiO2 composites prepared by embedding salts into porous glasses with the average pore diameter of 320 nm has been studied at the temperature range of 85–300 K. An increase of the structure phase transition temperatures in embedded salts has been observed, which is supposedly due to tensile deformations of embedded crystalline particles. The antiferroelectric phase transition in confined ADP particles becomes diffuse in the temperature region around 10 K.

Publisher:

Oficyna Wydawnicza Politechniki Wrocławskiej

Place of publication:

Wrocław

Date:

2010

Resource Type:

artykuł

Source:

<sygn. PWr A3481II> ; click here to follow the link ; click here to follow the link

Language:

eng

Relation:

Optica Applicata ; Optica Applicata, Vol. 40, 2010 ; Optica Applicata, Vol. 40, 2010, nr 2 ; Politechnika Wrocławska. Wydział Podstawowych Problemów Techniki

Rights:

Wszystkie prawa zastrzeżone (Copyright)

Access Rights:

Dla wszystkich w zakresie dozwolonego użytku

Location:

Politechnika Wrocławska