Dielectric relaxation and pyroelectric behaviour of betaine potassium iodide dihydrate

• Type: Article in International Scientific Journal
• Date: 2000

Authors

Almeida, A (Author) FCUP; Chaves, MR (Author) FCUP; Pinto, F (Author) Other; Moreira, JA (Author) Other; Klopperpieper, A (Author) Other

Journal

Title: Ferroelectrics

Vol. 241

Pages: 263-270

ISSN: 0015-0193

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 4 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-001-1G4

DOI: 10.1080/00150190008225000

Abstract (EN): Betaine potassium iodide dihydrate (BKI) is a new compound of the aminoacid betaine with a triclinic symmetry and with the space group P (1) over bar at room temperature. It undergoes a phase transition at 100 K. In this paper we report a detailed study of the dielectric relaxation and of the pyroelectric properties of this compound in the temperature range 20-300K. A microscopic interpretation of dielectric properties is presented by doing a comparison between the dielectric dispersion behaviour and the results obtained in the study of Raman scattering of BKI.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8