Abstract:
:We report the robust ferroelectric properties of (1 - x)(Bi1/2Na1/2)TiO3-x(Bi1/2K1/2)TiO3 (x = 33%) single crystals grown by a top-seeded solution growth process under a high oxygen-pressure (0.9 MPa) atmosphere. The sample exhibit a large remanent polarization of 48 μC/cm2 and a sizeable piezoelectric strain constant of 460 pm/V. Neutron powder diffraction structural analysis combined with first-principles calculations reveals that the large ferroelectric polarization comparable to PbTiO3 stems from the hybridization between Bi-6p and O-2p orbitals at a moderately negative chemical pressure.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kitanaka Y,Noguchi Y,Miyayama Mdoi
10.1038/s41598-019-55576-ysubject
Has Abstractpub_date
2019-12-17 00:00:00pages
19275issue
1issn
2045-2322pii
10.1038/s41598-019-55576-yjournal_volume
9pub_type
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