Phenomenological description of the diffuse phase transition in ferroelectrics

IA Santos, JA Eiras - Journal of Physics: condensed matter, 2001 - iopscience.iop.org
Features of the diffuse phase transition in lead magnesium niobate and strontium barium
niobate, typical relaxor ferroelectric materials, were studied as a function of temperature and …

Structure refinement of (Sr, Ba) Nb2O6 ceramic powder from neutron and X-rays diffraction data

JG Carrio, YP Mascarenhas, W Yelon, IA Santos… - Materials …, 2002 - SciELO Brasil
The structure of polycrystalline strontium barium niobate at room temperature was refined by
the Rietveld method. Sintered ceramic samples were used to collect powder neutron and X …

Manipulation of polar order in the “empty” tetragonal tungsten bronzes: Ba4-xSrxDy0. 67□ 1.33 Nb10O30, x= 0, 0.25, 0.5, 1, 2, 3

J Gardner, FD Morrison - Applied Physics Letters, 2016 - pubs.aip.org
A series of “empty” tetragonal tungsten bronze (TTB) ferroelectrics, Ba 4-x Sr x Dy 0.67□
1.33 Nb 10 O 30 (x= 0, 0.25, 0.5, 1, 2, 3;□= vacancy), is reported. With increasing x the unit …

Texturing and properties in hot forged SBN63/37 ceramics

M Venet, A Vendramini, IA Santos, JA Eiras… - Materials Science and …, 2005 - Elsevier
Strontium barium niobate (Sr, Ba) Nb2O6 ferroelectric ceramics were obtained through two
stage process, a lower temperature conventional sintering and a higher temperature hot …

Pyroelectric properties of rare earth doped strontium barium niobate ceramics from 20K to 450K

IA Santos, D Garcia, JA Eiras - Ferroelectrics, 2001 - Taylor & Francis
Pyroelectric properties of rare earth doped strontium barium niobate ferroelectric ceramics
(SBN+ yRE2O3, where RE= La, Nd, and Gd) were carefully investigated in the temperature …

Field-induced sharp ferroelectric phase transition in relaxor ferroelectric

IA Santos, D Garcia, JA Eiras, ER Manoel… - Applied Physics …, 2001 - pubs.aip.org
Field-induced sharp ferroelectric phase transition was observed in Sr 0.66 Ba 0.34 Nb 2 O 6
single crystals. The peaks of the real and imaginary parts of dielectric permittivity arise upon …

Dielectric measurement of ferroelectric Sr0. 61Ba0. 39Nb2O6 single crystal fiber using cavity perturbation method

C Huang, AS Bhalla, MT Lanagan, LE Cross… - Applied Physics …, 2005 - pubs.aip.org
The nonlinear dielectric property of the ferroelectric Sr 0.61 Ba 0.39 Nb 2 O 6 (SBN) crystal is
essential to device application at various frequency ranges. The dielectric constant of the …

Growth and characterization of Nd-doped SBN single crystal fibers

JJ Romero, MRB Andreeta, ERM Andreeta, LE Bausa… - Applied Physics A, 2004 - Springer
The growth from ceramic pedestals of single crystal fibers of strontium barium niobate (SBN),
doped with different Nd concentrations, was studied. High-quality fibers were grown for Nd …

Mesoscopic structure evidenced by AC dielectric nonlinearities in Sr0. 75Ba0. 25Nb2O6 relaxor ferroelectric thin films

IA Santos, JLS Guerra, EB Araújo… - Journal of Physics …, 2008 - iopscience.iop.org
The AC electric field and temperature dependences of the dielectric permittivity for strontium
barium niobate (Sr 0.75 Ba 0.25 Nb 2 O 6) relaxor ferroelectric thin films have been …

Dielectric behavior of strontium barium niobate relaxor ferroelectrics in ceramics and single crystal fibers

C Huang, AS Bhalla, R Guo… - Japanese journal of …, 2006 - iopscience.iop.org
Ferroelectric strontium barium niobate (SBN) single crystal fibers are fabricated from
congruent Sr 0.61 Ba 0.39 Nb 2 O 6 ceramics by the laser heated pedestal method. For …