TY - JOUR
T1 - Electric Field Structures in Thin Films: Formation and Properties
AU - Cassidy, Andrew
AU - Plekan, Oksana
AU - Balog, Richard
AU - Dunger, Jack
AU - Field, David
AU - Jones, Nykola C.
PY - 2014
Y1 - 2014
N2 - A newly discovered class of molecular materials, so-called
“spontelectrics”, display spontaneous electric fields. Here we show that the
novel properties of spontelectrics can be used to create composite
spontelectrics, illustrating how electric fields in solid films may be
structured on the nanoscale by combining layers of different spontelectric
materials. This is demonstrated using the spontelectric materials nitrous
oxide, toluene, isoprene, isopentane, and CF2Cl2. These yield a variety of
tailored electric field structures, with individual layers harboring fields
between 107 and 108 V/m. Fields may be of the same sign or of opposite
sign, the latter enabling the creation of nanoscale potential wells. The
formation of fields is followed using an established electron beam
technique, employing the ASTRID synchrotron storage ring. The influence
of temperature on heterolayer structures, displaying new Curie effects, and
the nature of the interfacial region between different spontelectrics are also
discussed,
AB - A newly discovered class of molecular materials, so-called
“spontelectrics”, display spontaneous electric fields. Here we show that the
novel properties of spontelectrics can be used to create composite
spontelectrics, illustrating how electric fields in solid films may be
structured on the nanoscale by combining layers of different spontelectric
materials. This is demonstrated using the spontelectric materials nitrous
oxide, toluene, isoprene, isopentane, and CF2Cl2. These yield a variety of
tailored electric field structures, with individual layers harboring fields
between 107 and 108 V/m. Fields may be of the same sign or of opposite
sign, the latter enabling the creation of nanoscale potential wells. The
formation of fields is followed using an established electron beam
technique, employing the ASTRID synchrotron storage ring. The influence
of temperature on heterolayer structures, displaying new Curie effects, and
the nature of the interfacial region between different spontelectrics are also
discussed,
U2 - 10.1021/jp503332x
DO - 10.1021/jp503332x
M3 - Journal article
C2 - 24921929
SN - 1089-5639
VL - 118
SP - 6615
EP - 6621
JO - Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
JF - Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
ER -