Browsing Electronic & Electrical Eng by Author "VIJ, JAGDISH KUMAR"
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Comment on Submillimeter spectroscopic study of concentrated electrolyte solutions as high density plasma
VIJ, JAGDISH KUMAR (American Institute of Physics, 2003)The authors of the title article: (1) contrary to their findings did not fully comprehend that in our paper [Phys. Chem. Chem. Phys., 3, 523 (2001)], the estimated contribution of ions oscillating between the two "reflecting ... -
Comparison of the characteristics of the chiral analog of the de Vries type of smectic-A* phase
VIJ, JAGDISH KUMAR; PANARIN, YURI PETROVICH (The American Physical Society, 2003)In this paper we compare the results of three ferroelectric materials that exhibit unusual smectic-A (SmA) phases. These phases have been assigned to chiral analogs of the de Vries SmA phase. Several experimental techniques ... -
Computer-controlled submillimeter Fourier spectrometer
VIJ, JAGDISH KUMAR (IEEE, 1989)Abstract-A system for a submillimeter wave Fourier transform spectroscopy (FTS) has been automated for the measurement of the power absorption coefficient of liquids in the wavenumber range 10- 400 cm-?. The interferometer ... -
Computer-controlled submillimeter Fourier spectrometer
VIJ, JAGDISH KUMAR (IEEE, 1989)A system for a submillimeter wave Fourier transform spectroscopy (FTS) has been automated for the measurement of the power absorption coefficient of liquids in the wavenumber range 10- 400 cm-?. The interferometer is ... -
Conformational distribution of a ferroelectric liquid crystal revealed using fingerprint vibrational spectroscopy and the density functional theory
VIJ, JAGDISH KUMAR (2007)The authors have investigated the conformational structure of the ferroelectric liquid crystal compound 4-3-methyl-2-chloropentanoyloxy- 4? -hexyloxy-biphenyl also known under the abbreviations 3M2CPHOB and C6 using ... -
Development of polar order in a bent-core liquid crystal with a new sequence of two orthogonal smectic and an adjacent nematic phase
VIJ, JAGDISH KUMAR (2011)A 4-cyanoresorcinol based bent-core liquid crystal shows a new phase sequence of two orthogonal smectic phases with short range (SmAP R) and long range (SmAP A) polar order beside a SmA-type cybotactic nematic phase (N ... -
Development of polar order in liquid crystalline phases of a banana compound with a unique sequence of three orthogonal phases
VIJ, JAGDISH KUMAR; PANARIN, YURI PETROVICH (Royal Society of Chemistry, 2010)Alkyl substituted 4-cyanoresorcinol 1,3-bisbenzoates with terephthalate based rod-like wings show a series of three orthogonal smectic phases SmA?SmAPR?SmAPA. -
Dielectric study of the electroclinic effect in the smectic-A phase
VIJ, JAGDISH KUMAR (American Physical Society, 1994)The dielectric properties of a smectic-A liquid crystal in the presence of a dc bias field are studied in the frequency range 100 Hz?1 MHz. It is shown that near the smectic-A?smectic-C* phase transition the relaxation ... -
Dynamics of Collective and Molecular Modes of a Ferroelectric Liquid Crystal in Confined Geometry Using Dielectric Spectroscopy.
VIJ, JAGDISH KUMAR (American Physical Society, 1997)Two aerogel systems containing a ferroelectric liquid crystal (FLC) with smectic phases over a wider temperature range are investigated using dielectric spectroscopy. The second order transition from Sm- A to Sm-Cp is ... -
Effect of high hydrostatic pressure on the dielectric relaxation in a non-crystallizable monohydroxy alcohol in its supercooled liquid and glassy states
VIJ, JAGDISH KUMAR (2011)The complex relative permittivity of a non-crystallizable secondary alcohol, 5-methyl-2-hexanol, is measured over a wide range of temperatures and pressures up to 1750 MPa (17.5 kbar). The data at atmospheric pressure (P ... -
Effects of induced steric hindrance on the dielectric behavior and H bonding in the supercooled liquid and vitreous alcohol
VIJ, JAGDISH KUMAR (American Institute of Physics, 2001)The reasons of Debye-type dielectric relaxation in monohydroxy alcohols were investigated by studying the effects of steric hindrance on dielectric behavior and hydrogen bonding in alcohols. Broadband dielectric spectroscopy ... -
Effects of ions on the dielectric permittivity and relaxation rate and the decoupling of ionic diffusion from dielectric relaxation in supercooled liquid and glassy 1-propanol
VIJ, JAGDISH KUMAR (American Institute of Physics, 2002)The effects of intermolecular H bonds on the equilibrium permittivity, ?s, the relaxation rate, fm, and changes in the dielectric relaxation spectra of 1-propanol were studied by adding a strongly dissociating electrolyte ... -
Experimental study for the conditions of analog switching in ferroelectric liquid crystal cells
PANARIN, YURI PETROVICH; VIJ, JAGDISH KUMAR (American Institute of Physics, 2007)The authors study the effect of the spontaneous polarization (PS) of a ferroelectric liquid crystal mixture with compensated helix and of the thickness of the alignment layer (da) on the analog switching in a cell. The ... -
The exponential dielectric relaxation dynamics in a secondary alcohol's supercooled liquid and glassy states
VIJ, JAGDISH KUMAR (2000)To gain insight into a recent observation that the prominent, Debye-type relaxation process observed for a primary alcohol may not be the a-relaxation process associated with molecular diffusion of a liquid @Europhys. ... -
Ferrielectric liquid crystal subphase studied by polarized Fourier-transform infrared spectroscopy
VIJ, JAGDISH KUMAR; PANARIN, YURI PETROVICH (American Physical Society, 2000)IR dichroism and the structure of a homogeneously aligned cell of a chiral smectic antiferroelectric liquid crystal (R)-1-methylheptyl 4-(4?-dodecyloxybiphenyl-4-ylcarbonyloxy)-3-fluorobenzoate [with acronym (R)-12OF1M7] ... -
Field-induced phase transitions in an antiferroelectric liquid crystal using the pyroelectric effect.
VIJ, JAGDISH KUMAR (American Physical Society, 2000)The antiferroelectric liquid crystal (AFLC) under investigation possesses different helical polar phases. Measurements of pyroelectric response of these phases as a function of temperature and bias field have elucidated ... -
Field-induced transformations in the biaxial order of non-tilted phases in a bent-core smectic liquid crystal
PANARIN, YURI PETROVICH; NAGARAJ, MAMATHA; VIJ, JAGDISH KUMAR (Institute of Physics, 2010)The structural and electro-optic investigations of an achiral bent-core molecule in SmAPA phase, in which the polar directors in the neighboring layers are arranged anti-ferroelectrically, show that it undergoes transformation ... -
Fractional rotational diffusion of rigid dipoles in an asymmetric double-well potential
VIJ, JAGDISH KUMAR (American Physical Society, 2005)The longitudinal and transverse components of the complex dielectric susceptibility tensor of an assembly of dipolar molecules rotating in an asymmetric double-well potential are evaluated using a fractional rotational ... -
Fractional rotational diffusion of rigid dipoles in an asymmetrical double-well potential
COFFEY, WILLIAM THOMAS; KALYMYKOV, YURI PETROVICH; VIJ, JAGDISH KUMAR (American Physical Society, 2005)The longitudinal and transverse components of the complex dielectric susceptibility tensor of an assembly of dipolar molecules rotating in an asymmetric double-well potential are evaluated using a fractional rotational ... -
FTIR study of a chiral tilted SmA liquid crystalline phase
PANARIN, YURI PETROVICH; VIJ, JAGDISH KUMAR (EDP Sciences, 2002)In this paper we present the results of the polarized infrared spectroscopy as evidence for the existence of a chiral analogue of the SmA phase of the de Vries type. In this phase, the molecular director in the smectic ...