Effect of Gd substitution on ferroelectric and magnetic properties of Bi4Ti3O12

• Type: Article in International Scientific Journal
• Date: 2010

Authors

khomchenko, v. a. (Author) Other; kakazei, g. n. (Author) Other; pogorelov, y. g. (Author) FCUP; araujo, j. p. (Author) FCUP; bushinsky, m. v. (Author) Other; kiselev, d. a. (Author) Other; kholkin, a. l. (Author) Other; paixao, j. a. (Author) Other

Journal

Title: Materials Letters

Vol. 64 No. 9

Pages: 1066-1068

ISSN: 0167-577X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 26 Citations

Scopus - 28 Citations

Other information

Authenticus ID: P-003-6QC

DOI: 10.1016/j.matlet.2010.02.016

Abstract (EN): Polycrystalline samples Bi4-xGdxTi3O12 (x=1, 1.5, 2) were investigated by X-ray diffraction, piezoresponse force microscopy and SQUID-magnetometry techniques. Increasing the gadolinium content was shown to suppress the spontaneous polarization in Bi4-xGdxTi3O12, resulting in a polar-to-nonpolar phase transition near x=1.5. In contrast to previous expectations, all these samples were found to be paramagnets. It was thus proven that introducing magnetically-active Gd ions into the lattice of the ferroelectric Aurivillius-type compound should not be considered as an effective way to achieve multiferroic behavior.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3