Crystal growth, pyroelectric, piezoelectric, and elastic properties of monoclinic bis (nitrilotriacetato) zirconates X[C(NH2)3] Zr(N(CH2COO)3)2 ž y H2o (y = 2 for X = Rb, Tl, NH4; y = 1 for X = Cs; y = 1.5 for X = CH3NH3)

Autor(en)

Eiken Haussühl, S Haussühl, Ekkehart Tillmanns

Abstrakt

Large single crystals of optical quality and with dimensions up to 50 mm of double salts of the type X[C(NH2)3] Zr(N(CH2COO)3)2 ž y H2) (X = Rb, Tl, NH4, Cs, CH3NH3) have been grown from aqueous solutions. They crystallize in the space group P21 and exhibit quasiisotypic structures. Complete elastic and thermoelastic tensors have been derived from ultrasonic resonances of plane-parallel plates. In addition, thermal expansion, pyroelectric dielectric and piezoelectric properties have been measured. The maximum longitudinal piezoelectric effects d222 exceed d111 of a-quartz roughly by a factor of 7. The pyroelectric constants p2 surmount p3 of tourmaline by about a factor of 9. The structural and physical properties are closely related to those of the constituent salts.

Organisation(en)

Institut für Mineralogie und Kristallographie

Externe Organisation(en)

Universität zu Köln

Journal

Zeitschrift für Kristallographie : international journal for structural, physical, and chemical aspects of crystalline materials

Band

216

Seiten

534-540

Anzahl der Seiten

7

ISSN

0044-2968

Publikationsdatum

2001

Peer-reviewed

Ja

ÖFOS 2012

1051 Geologie, Mineralogie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/4d125abe-8793-4bf5-8c62-6e86243f3a25