Polydomain configuration in epitaxial Pb 0.5 Sr 0.5 TiO 3 / La 0.5 Sr 0.5 CoO 3 heterostructures
In epitaxial heterostructures Pb 0.5 Sr 0.5 TiO 3 / La 0.5 Sr 0.5 CoO 3 / MgO ( 001 ) with a large lattice mismatch, ferroelectric domains and properties were experimentally studied. In 130 nm thick polydomain tetragonal Pb 0.5 Sr 0.5 TiO 3 films, random arrays of ∼ 0.1 - 0.5 μ m sized a - and c -...
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| Veröffentlicht in: | Applied physics letters 2010-11, Vol.97 (20), p.202909-202909-3 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | In epitaxial heterostructures
Pb
0.5
Sr
0.5
TiO
3
/
La
0.5
Sr
0.5
CoO
3
/
MgO
(
001
)
with a large lattice mismatch, ferroelectric domains and properties were experimentally studied. In 130 nm thick polydomain tetragonal
Pb
0.5
Sr
0.5
TiO
3
films, random arrays of
∼
0.1
-
0.5
μ
m
sized
a
- and
c
-domains are found. In vertical capacitors with Pt top electrodes, a steplike switching of polarization is observed. The results are discussed in terms of island growth and different switching mechanisms in
a
- and
c
-domains. |
|---|---|
| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.3519977 |