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Thermal motion of one‐dimensional domain walls in monolayers of a polar polymer observed by Video‐STM
Author(s) -
Ludwig Ch.,
Eberle G.,
Gompf B.,
Petersen J.,
Eisenmenger W.
Publication year - 1993
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19935050402
Subject(s) - monolayer , materials science , polar , ferroelectricity , polymer , domain wall (magnetism) , scanning tunneling microscope , domain (mathematical analysis) , ferroelectric polymers , thermal , copolymer , motion (physics) , quantum tunnelling , condensed matter physics , composite material , nanotechnology , physics , optoelectronics , classical mechanics , thermodynamics , mathematical analysis , magnetization , mathematics , quantum mechanics , astronomy , magnetic field , dielectric
Scanning tunneling microscopy (STM) has been used to investigate monolayers of the ferroelectric copolymer polyvinylidenefluoride/trifluoroethylene P(VDF/TrFE) showing images of ordered polymer monolayers. By scanning with video frame rate, direct observation of the motion of onedimensional domain walls was also possible for the first time. The images clearly show domain walls normal to the polymer chains. From measurements of the temperature dependence of the domain wall velocities the activation energy for the thermally generated kink motion was estimated. These results are compared with theoretical models describing domain wall motion in ferroelectric PVDF.