Broadband inelastic light scattering of a relaxor ferroelectric 0.71Pb(Ni1∕3Nb2∕3)O3-0.29PbTiO3 | Zendy

Shinya Tsukada | Zendy; Yuji Ike | Zendy; Jun Kano | Zendy; Tadashi Sekiya | Zendy; Yoshihito Shimojo | Zendy; Ruiping Wang | Zendy; Seiji Kojima | Zendy

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Broadband inelastic light scattering of a relaxor ferroelectric 0.71Pb(Ni1∕3Nb2∕3)O3-0.29PbTiO3

Author(s) -

Shinya Tsukada,

Yuji Ike,

Jun Kano,

Tadashi Sekiya,

Yoshihito Shimojo,

Ruiping Wang,

Seiji Kojima

Publication year - 2006

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2393159

Subject(s) - raman spectroscopy , materials science , brillouin scattering , polarization (electrochemistry) , raman scattering , polar , relaxation (psychology) , ferroelectricity , brillouin zone , inelastic scattering , condensed matter physics , scattering , optics , dielectric , optoelectronics , chemistry , physics , laser , psychology , social psychology , astronomy

Brillouin and Raman scatterings of a 0.71Pb(Ni1/3Nb2/3)O3-0.29PbTiO3 single crystal have been measured to investigate broadband inelastic spectra. The two different central peaks related to fast and slow relaxation processes have been observed separately. These two processes are attributed to the thermally activated switching of polarization in polar nanoregions. By the analysis of modified superparaelectric model, the activation energies of fast and slow relaxation processes are determined to be 3.66×103 and 4.31×102 K, respectively. The fast process with the lower activation energy probably originated from 180° switching, whereas the slow one with the higher energy from non-180° switching

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