A monoclinic ferroelectric phase transition in the Pb(Zr1-xTix)O3 solid solution

Journal Article · Fri Jan 01 04:00:00 EST 1999 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.123756· OSTI ID:930070

Noheda, B; Cox, D; Shirane, G; Gonzalo, J; Cross, L; Park, S

A previously unreported ferroelectric phase has been discovered in a highly homogeneous sample of PbZr{sub 0.52}Ti{sub 0.48}O{sub 3} by high-resolution synchrotron x-ray powder diffraction measurements. At ambient temperature the sample has tetragonal symmetry (a{sub t} = 4.037 {angstrom}, c{sub t} = 4.138 {angstrom}), and transforms below {approx} 250 K into a phase which, unexpectedly, has monoclinic symmetry (a{sub m} = 5.717 {angstrom}, b{sub m} = 5.703 {angstrom}, c{sub m} = 4.143 {angstrom}, {beta}= 90.53{sup o}, at 20 K). The intensity data strongly indicate that the polar axis lies in the monoclinic ac plane close to the pseudocubic [111] direction, which would be an example of the species m3m(12)A2Fm predicted on symmetry grounds by Shuvalov.

• Research Organization: Brookhaven National Laboratory (BNL) National Synchrotron Light Source
• Sponsoring Organization: Doe - Office Of Science
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 930070
• Report Number(s): BNL--80697-2008-JA
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Vol. 74; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
AMBIENT TEMPERATURE
DATA
DIFFRACTION
ELECTRIC GROUNDS
POWDERS
SOLID SOLUTIONS
SYMMETRY
SYNCHROTRONS
national synchrotron light source