| dc.contributor.author | Dutta, Alo | |
| dc.contributor.author | Sinha, Tripurari Prasad | |
| dc.date.accessioned | 2012-11-20T07:03:06Z | |
| dc.date.available | 2012-11-20T07:03:06Z | |
| dc.date.issued | 2011-04 | |
| dc.identifier | FOR ACCESS / DOWNLOAD PROBLEM -- PLEASE CONTACT LIBRARIAN, BOSE INSTITUTE, akc@bic.boseinst.ernet.in | en_US |
| dc.identifier.citation | Dutta A and Sinha T P (2011) Structural and dielectric properties of A(Fe 112Ta 112)03 [A = Ba, Sr, Ca], Materials Research Bulletin, 46, 518-524. | en_US |
| dc.identifier.issn | 0025-5408 | |
| dc.identifier.uri | 1. Full Text Link -> | en_US |
| dc.identifier.uri | ================================================= | en_US |
| dc.identifier.uri | ================================================= | en_US |
| dc.identifier.uri | 2. Scopus : Citation Link -> | en_US |
| dc.identifier.uri | http://www.scopus.com/record/display.url?eid=2-s2.0-79952193174&origin=resultslist&sort=plf-f&src=s&st1=Sinha%2cT.+P.&nlo=&nlr=&nls=&sid=jO0ZcG0VyBv6ZfqYHI0ku_z%3a350&sot=b&sdt=b&sl=24&s=AUTHOR-NAME%28Sinha%2cT.+P.%29&relpos=42&relpos=2&searchTerm=AUTHOR-NAME(Sinha,T.%20P.)# | en_US |
| dc.description | DOI : 10.1016/j.materresbull.2011.01.003 | en_US |
| dc.description.abstract | The complex perovskite oxide barium iron tantalate (BFT), BaFe1/2Ta1/2O3. strontium iron tantalate (SFT). SrFe1/2Ta1/2O3 and calcium iron tantalate (CFT). CaFe1/2Ta1/2O3 are synthesized by a solid-state reaction technique. Rietveld refinement of the X-ray diffraction data of the samples shows that BET and SFT crystallize in cubic structure, with lattice parameter a = 4.06 angstrom for BFT and 3.959 angstrom for SFT, whereas CFT crystallizes in orthorhombic structure having lattice parameters a = 5.443 angstrom, b = 5.542 angstrom and c = 7.757 angstrom. Fourier transform infrared spectra show two primary phonon modes of the samples at around 450 cm(-1) and 620 cm(-1). The compounds show significant frequency dispersion in its dielectric properties. The complex impedance plane plots of the samples show that the relaxation (conduction) mechanism in these materials is purely a bulk effect arising from the semiconductive grains. The relaxation mechanism of the samples is modelled by Cole-Cole equation. The frequency dependent conductivity spectra are found to follow the power law. | en_US |
| dc.description.sponsorship | Department of Science and Technology of India
SR/S2/CMP-01/2008
CSIR, New Delhi | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | PERGAMON-ELSEVIER SCIENCE | en_US |
| dc.subject | Ceramics | en_US |
| dc.subject | Chemical synthesis | en_US |
| dc.subject | Impedance spectroscopy | en_US |
| dc.subject | Dielectric properties | en_US |
| dc.subject | WOS:000289022100006 | en_US |
| dc.title | Structural and dielectric properties of A(Fe1/2Ta1/2)O-3 [A = Ba, Sr, Ca] | en_US |
| dc.title.alternative | MATERIALS RESEARCH BULLETIN | en_US |
| dc.type | Article | en_US |
