Structure factor of a relaxor ferroelectric

Guzmán-Verri, G. G.; Varma, C. M.

doi:10.1103/PhysRevB.91.144105

Title: Structure factor of a relaxor ferroelectric

Journal Article · Wed Apr 01 00:00:00 EDT 2015 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.91.144105· OSTI ID:1391961

Guzmán-Verri, G. G.; Varma, C. M.

We study a minimal model for a relaxor ferroelectric including dipolar interactions and short-range harmonic and anharmonic forces for the critical modes as in the theory of pure ferroelectrics together with quenched disorder coupled linearly to the critical modes. We present the simplest approximate solution of the model necessary to obtain the principal features of the correlation functions. Specifically, we calculate and compare the structure factor measured by neutron scattering in different characteristic regimes of temperature in the relaxor Pb(Mg1/3Nb2/3)O3.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

DOE Contract Number:: AC02-06CH11357

OSTI ID:: 1391961

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Vol. 91, Issue 14; ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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