Domain wall roughness and creep in nanoscale crystalline ferroelectric polymers
作者： Stephen Ducharme , Z. Xiao , Shashi Poddar , X. Hong
DOI: 10.1063/1.4820784
关键词: Surface finish 、 Exponent 、 Materials science 、 Condensed matter physics 、 Ferroelectricity 、 Domain wall (magnetism) 、 Creep 、 Nanoscopic scale 、 Ferroelectric polymers 、 Polarization (electrochemistry)
摘要: We report piezo-response force microscopy studies of the static and dynamic properties domain walls (DWs) in 11 to 36 nm thick films crystalline ferroelectric poly(vinylidene-fluoride-trifluorethylene). The DW roughness exponent {\zeta} ranges from 0.39 0.48 creep {\mu} varies 0.20 0.28, revealing an unexpected effective dimensionality ~1.5 that is independent film thickness. Our results suggest predominantly 2D ferroelectricity layered polymer we attribute fractal deroughening due correlations between in-plane out-of-plane polarization, effect can be exploited achieve high lateral density for developing nanoscale ferroelectrics-based applications.
arxiv.org
128.84.21.199参考文章(37)
A. V. Bune, V. M. Fridkin, Stephen Ducharme, L. M. Blinov, S. P. Palto, A. V. Sorokin, S. G. Yudin, A. Zlatkin, Two-dimensional ferroelectric films Nature. ,vol. 391, pp. 874- 877 ,(1998) , 10.1038/36069
P. Paruch, T. Giamarchi, J.-M. Triscone, Domain Wall Roughness in Epitaxial Ferroelectric PbZr 0.2 Ti 0.8 O 3 Thin Films Physical Review Letters. ,vol. 94, pp. 197601- ,(2005) , 10.1103/PHYSREVLETT.94.197601
L. Krusin-Elbaum, T. Shibauchi, B. Argyle, L. Gignac, D. Weller, Stable ultrahigh-density magneto-optical recordings using introduced linear defects. Nature. ,vol. 410, pp. 444- 446 ,(2001) , 10.1038/35068515
T. Giamarchi, A.B. Kolton, A. Rosso, Dynamics of Disordered Elastic Systems Lecture Notes in Physics. ,vol. 688, pp. 91- 108 ,(2006) , 10.1007/3-540-33204-9_6
T Natterman, Interface phenomenology, dipolar interaction, and the dimensionality dependence of the incommensurate-commensurate transition Journal of Physics C: Solid State Physics. ,vol. 16, pp. 4125- 4135 ,(1983) , 10.1088/0022-3719/16/21/014
M Dawber, N Stucki, C Lichtensteiger, S Gariglio, J-M Triscone, New phenomena at the interfaces of very thin ferroelectric oxides Journal of Physics: Condensed Matter. ,vol. 20, pp. 264015- ,(2008) , 10.1088/0953-8984/20/26/264015
Manuel Bibes, Javier E. Villegas, Agnès Barthélémy, Ultrathin oxide films and interfaces for electronics and spintronics Advances in Physics. ,vol. 60, pp. 5- 84 ,(2011) , 10.1080/00018732.2010.534865
J. D. Clark, P. L. Taylor, Effect of Lamellar Structure on Ferroelectric Switching in Poly (Vinylidene Fluoride) Physical Review Letters. ,vol. 49, pp. 1532- 1535 ,(1982) , 10.1103/PHYSREVLETT.49.1532
G Catalan, H Béa, S Fusil, M Bibes, Patrycja Paruch, A Barthélémy, JF Scott, None, Fractal Dimension and Size Scaling of Domains in Thin Films of Multiferroic BiFeO 3 Physical Review Letters. ,vol. 100, pp. 027602- ,(2008) , 10.1103/PHYSREVLETT.100.027602
Yunseok Kim, Wooyoung Kim, Hyunwoo Choi, Seungbum Hong, Hyungsoo Ko, Heechul Lee, Kwangsoo No, None, Nanoscale domain growth dynamics of ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) thin films Applied Physics Letters. ,vol. 96, pp. 012908- ,(2010) , 10.1063/1.3290247