Regular Article

On the pyroelectricity of DKDP single crystals and PZT-40 ceramics at 1.5–30 K

N.D. Gavrilova, V.K. Novik

Moscow University Physics Bulletin 2010. 65. N 6. P. 506

Article

Annotation

Following the results of the analysis of experimental data in article are defined lowest modes responsible for pyroelectricity in single crystal DKDP (87,3 and 201,6 cm-1) and ferroelectric ceramic PZT-40 (20,7, 54,75 and 171,3 cm-1). Set of the physical mechanisms which are present in real polar dielectrics, active in the pyroelectricity at an interval 0–30 K, and the methods of its identification, separation and single quantitative response definition for each of spontaneous polarization components is discussed.

Received: 2010 June 13

Approved: 2011 April 13

PACS:

77.22.Ej Polarization and depolarization
77.70.+a Pyroelectric and electrocaloric effects
77.80.-e Ferroelectricity and antiferroelectricity
77.84.Fa KDP- and TGS-type crystals

Authors

N.D. Gavrilova, V.K. Novik
Faculty of Physics, Moscow State University, Moscow, 119991, Russia

Issue 6, 2010

Moscow University Physics Bulletin

Science News of the Faculty of Physics, Lomonosov Moscow State University

This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.