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Criticality of bistability phenomenon in deformed helix ferroelectric liquid crystal
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10.1063/1.2838488
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Affiliations:
1 Instrument Design and Development Center, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India
2 National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi-110012, India
a) Author to whom correspondence should be addressed. Electronic mail: abiradar@mail.nplindia.ernet.in.
J. Appl. Phys. 103, 044103 (2008)
/content/aip/journal/jap/103/4/10.1063/1.2838488
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/4/10.1063/1.2838488
View: Figures

## Figures

FIG. 1.

Experimental setup used for applying triangular wave for polarization response.

FIG. 2.

Electrical response of deformed helix ferroelectric liquid crystal (DHFLC) at room temperature in cell at at (a) (channel , channel ), (b) (channel , channel ), (c) (channel , channel ), (d) (channel , channel ), and (e) (channel , channel ). The time scale on axis is .

FIG. 3.

Optical micrographs of cell at room temperature at (a) , (b) , (c) , (d) , and (e) .

FIG. 4.

Electrical response of DHFLC at room temperature in cell at at (a) (channel , channel ), (b) (channel , channel ), and (c) (channel , channel ). The time scale on axis is .

FIG. 5.

Electrical response of DHFLC at room temperature in cell at at (a) (channel , channel ), (b) (channel , channel ), and (c) (channel , channel ). The time scale on axis is .

FIG. 6.

Electrical response of DHFLC at room temperature in cell at at (a) (channel , channel , time—), (b) (channel , channel , time—), (c) (channel , channel , time—), (d) (channel , channel , time—), (e) (channel , channel , time—), and (f) (channel , channel , time—).

FIG. 7.

(a) Position of the molecules on helix and (b) schematic diagram of deformation of helix in DHFLC material in response of an applied electric field.

FIG. 8.

Optical response of DHFLC at room temperature in cell at at (a) (channel , channel ), (b) (channel , channel ), (c) (channel , channel ), and (d) (channel , channel ). The time scale on axis is .

FIG. 9.

Optical response of DHFLC at room temperature in cell at at (a) (time—), (b) (time—), (c) (time—), (d) (time—), (e) (time—), and (f) (time—). The voltage on axis for channels 1 and 2 are 11.7 and , respectively.

/content/aip/journal/jap/103/4/10.1063/1.2838488
2008-02-20
2014-04-17

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