Preparation and characterization of quantum paraelectric La1/2Na1/2TiO3 nanocrystals

Authors
Zhang, WF Zhang, XT Guo, H Fang, JL Zhang, MS
Citation
Wf. Zhang et al., Preparation and characterization of quantum paraelectric La1/2Na1/2TiO3 nanocrystals, CHEM J CH U, 20(4), 1999, pp. 515-518
Citations number
11
Categorie Soggetti
Chemistry
Journal title
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN journal
02510790 → ACNP
Volume
20
Issue
4
Year of publication
1999
Pages
515 - 518
Database
ISI
SICI code
0251-0790(199904)20:4<515:PACOQP>2.0.ZU;2-B
Abstract
Quantum paraelectric La1/2Na1/2TiO3 nanocrystals have successfully been pre pared by using improved sol-gel method in which absolute alcohol and steari c acid were used as the solvent, X-ray diffraction results show that the as -prepared sample is a pure La1/2Na1/2TiO3 with an acubic perovskite-type st ructure, The mean crystallite sizes were controlled by varying annealing te mperatures. FTIR and Raman measurements reveal nano-size effects on the vib ration spectroscopic properties of the nanocrystalline La1/2Na1/2TiO3.