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Medientyp:
E-Artikel
Titel:
Electrostatic topology of ferroelectric domains in YMnO3
Beteiligte:
Jungk, Tobias;
Hoffmann, Ákos;
Fiebig, Manfred;
Soergel, Elisabeth
Erschienen:
AIP Publishing, 2010
Erschienen in:Applied Physics Letters
Sprache:
Englisch
DOI:
10.1063/1.3460286
ISSN:
0003-6951;
1077-3118
Entstehung:
Anmerkungen:
Beschreibung:
<jats:p>Trimerization-polarization domains in ferroelectric hexagonal YMnO3 were resolved in all three spatial dimensions by piezoresponse force microscopy. Their topology is dominated by electrostatic effects with a range of 100 unit cells and reflects the unusual electrostatic origin of the spontaneous polarization. The response of the domains to locally applied electric fields explains difficulties in transferring YMnO3 into a single-domain state. Our results demonstrate that the wealth of nondisplacive mechanisms driving ferroelectricity that emerged from the research on multiferroics are a rich source of alternative types of domains and domain-switching phenomena.</jats:p>