PUBLICATIONS

 
1983

L.Georgescu and V. Popa-Nita
"On Statistical Description of the Surface Tension of a Three-Dimensional Liquid Phase Interface"
An. Univ. Buc. 32, 11 (1983).

L.Georgescu, S. Bafayad, V. Popa-Nita, M.I.Chipara, R.Moldovan and L.Bucsa
"E.S.R. Studies on Liquid Crystals"
An. Univ. Buc. 32, 69 (1983).

1984

V. Popa-Nita and L.Georgescu
"Pair Correlations in a Molecular Theory of Nematic Liquid Crystals"
An. Univ. Buc. 33, 27 (1984).

L. Georgescu and V. Popa-Nita
"Statistical Mechanics of Surface Properties of Simple Liquids"
Rev. Roum. Phys. 29, 481 (1984).

L.Georgescu, V. Popa-Nita, and R.Moldovan
"Surface Tension of the Nematic Liquid Crystals in Terms of the Corelation Functions"
Rev. Roum. Phys. 29, 553 (1984).

M. Chipara, L. Georgescu, V. Popa-Nita, S. Bafayad and L. Bucsa
"E.S.R. Studies of Liquid Cristals"
Proceedings, 14th Conference E.S.R. Oxford (1984).

M. Chipara, L. Georgescu, V. Popa-Nita, and L. Bucsa
"E.S.R. Studies on Phase Transition in a Nematic Liquid Crystal"
Proceedings, 22nd Conference Ampere, Zurich (1984).

1985

L.Georgescu, V. Popa-Nita, and M.I.Chipara
"A Statistical Theory of Surface Tension in Nematic Liquid Crystals"
An. Univ. Buc. 34, 29 (1985).

V. Popa-Nita and L.Georgescu
" Angle-Dependent Intermolecular Potentials which are Characteristic of the Nematic Liquid Crystals"
St.Cerc.Fiz. 37, 878 (1985).

1986

L.Georgescu, V. Popa-Nita, and I. Bulboaca
"Remarks Concerning the Calculation of Simple Fluids Surface Tension"
An. Univ. Buc. 35, 41 (1986).

V. Popa-Nita and L. Georgescu
" A Molecular Theory of Surface Tension in Nematic Liquid Crystals"
Mol. Cryst. Liq. Cryst. 136, 295 ( 1986 ) .

1987

L. Georgescu, V. Popa-Nita, D. Borsan, V. Dima, E. Barna, I.Stamatin
Liquid and Liquid Crystals Physics- experimental study (University of Bucharest Press, 1987
)

L. Georgescu , V. Popa-Nita, and I. Bulboaca
" Nematic-Isotropic Transition in a Fluid of Rigid Parallelipipeds"
An. Univ. Buc. 36, 22 (1987).

1988

I. Bulboaca, F. Carstoiu, L.Georgescu, and V. Popa-Nita
" The Effective Lennard-Jones Potential in the Percus-Yevick Approximation"
An. Univ. Buc. 37, 95 (1988).

L.Georgescu, V. Popa-Nita and I.Bulboaca
" Remarks Concerning the Calculation of Simple Fluids Termodynamics Properties"
An. Univ. Buc. 37, 25 (1988).

V. Popa-Nita and L.Georgescu
" Hard Ellipsoids in an Anisotropic Mean Field: A Statistical Model for Nematic Liquid Crystals"
St.Cerc.Fiz. 40, 293 (1988).

1989

L.Georgescu and V. Popa-Nita
" Density-Functional Theory of the Isotropic-Nematic Transition of Hard Elipsoids"
An. Univ. Buc. 38, 21 (1989).

V. Popa-Nita and L. Georgescu
" Comparison of Hard-rod Models of Nematic-Isotropic Transition"
Rev. Roum. Phys. 34, 83 (1989).

1990

V. Popa-Nita and L.Georgescu
" Density-Functional Theory in Classical Fluids"
An. Univ. Buc, 39, 85 (1990).

1991

I. Bulboaca, F. Carstoiu, L. Georgescu, and V. Popa-Nita
" The Effective Lennard-Jones Potential in the PY Approximation"
Rev. Roum. Phys. 36, 71 (1991).

I. Bulboaca, F. Carstoiu, L. Georgescu, and V. Popa-Nita
" A comparison Between the PY, CHNC, and Local Scale Transform-Improved Correlation Functions for Liquid Argon"
St. Cerc. Fiz. 43, 37 (1991).

1992

V. Popa-Nita
"Hard Ellipsoids in an Anisotropic Mean Field: Magnetic Effects on Isotropic-Nematic Phase Transition"
Rev. Roum. Phys. 37, 501 (1992).

V. Popa-Nita
" Density Functional Theory of Isotropic-Nematic Transition"
Roum. J. Phys. 37, 775 (1992).

V. Popa-Nita and L. Georgescu
" A Theorerical Analysis on the Interaction Between Wetting and
Surface Orientational Phenomena in Nematics"
Proceedings, 14th International Conference of Liquid Crystal, Pisa (1992).

V. Popa-Nita
."A Theoretical Analysis on the Interaction Between Wetting and Surface Orientational Phenomena in Nematics"
Roum. J. Phys. 37, 889 (1992).

1993

V. Popa-Nita
."The Interaction Between Wetting and Surface Orientational Phenomena in Nematics"
Roum. J. Phys. 38, 589 (1993).

1994

V. Popa-Nita
Molecular Physics (first part-Thermodynamics) (University of Bucharest Press, 1994).

V.Popa-Nita
" Hard Ellipsoids in an Anisotropic Mean Field: Surface Effects in Isotropic-Nematic Phase Transition"
Mol. Cryst. Liq. Cryst. 239, 95 (1994).

V. Popa-Nita
" Density-Functional Theory of Nematic near Surface"
Mol. Cryst. Liq. Cryst. 257, 131 (1994).

V. Popa-Nita
" Front Propagation in the Time-Dependent Landau-Ginzburg Model"
Mol.Cryst. Liq.Cryst. 257, 141 (1994).

1995

V. Popa-Nita and T. J. Sluckin
" Kinetics of Nematic Liquid Crystal Formation in the Metastable Regime"
Proceedings 10th Annual Conference of British Liquid Crystal Society, Exeter (1995).

1996

V. Popa-Nita and T.J.Sluckin
" Kinetics of the Nematic-Isotropic Interface"
J. Phys.II France 6, 873 (1996).

1997

V. Popa-Nita, T.J.Sluckin, and A.A.Wheeler
" Statics and Kinetics at the Nematic-Isotropic Interface: Effects of Biaxiality"
J. Phys.II France 7, 1225 (1997).

V. Popa-Nita and S. Romano
" The Influence of Undercooling on Phase Ordering Kinetics in Nematic Liquid Crystals"
Phys. Rev. E 55, 7779 (1997).

1998

V. Popa-Nita
Molecular Physics (second part-Kinetic Theory and
Elements of Statistical Physics) (University of Bucharest Press, 1998).

L. Georgescu, V. Popa-Nita, D. Borsan, V. Dima, E. Barna,I.Stamatin
Liquid and Liquid Crystals Physics- experimental study (University of Bucharest Press, second edition 1998).

V. Popa-Nita, E. Barna, and C. A. Stanescu
" Phase Field Model of Polymer Solidification"
Roum. J. Phys. 43, 763 (1998).

1999

S. Antohe, E. Barna, A. Belea, T. Cheche, P. Cristea, A. Dafinei, M. Fronescu, V. Grecu, A. Ionescu, A. Petrescu, V. Popa-Nita, and C. Stanescu
Friendly Physics- through not so easy questions (University of Bucharest Press, 1999).

V. Popa-Nita
" Statics and Kinetics at the Nematic-Isotropic Interface in Porous Media"
Eur. Phys. J. B 12, 83 (1999).

V. Popa-Nita
" Magnetic-Field-Induced Isotropic-Nematic Phase Transition in Porous Media"
Chem. Phys. 246, 247 (1999).

V. Popa-Nita and Doru-Cosmin Constantin
" Kinetics of Phase Ordering of Nematic Liquid Crystals Confined in Porous Media"
Phys. Rev. E 60, 1 (1999).

2000

G. Barbero and V. Popa-Nita
" A Theoretical model for the Planar-Homeotropic Surface Phase Transition Induced by Trans-Cis Isomerisation"
Phys. Rev. E 61, 6696 (2000).

2001

V. Popa-Nita and S. Romano
" Nematic-Smectic A Phase Transition in Porous Media"
Chem. Phys. 264, 91 (2001).

2002

V. Popa-Nita and T. J. Sluckin
"Surface modes at the nematic-isotropic interface"
Phys. Rev. E 66, 041703 (2002).

V. Popa-Nita and P. Oswald
" Phase-field model for front propagation in a temperature gradient: Selection and competition between the correlation and the thermal lengths"
Phys. Rev. E 66, 066117 (2002).

V.Popa-Nita and S. Romano
"The influence of a random field on the thermotropic liquid crystals phase transitions" Invited paper
Rec. Devel. Chem. Phys. 3,165 (2002).

L. Georgescu, V. Popa-Nita, E. Barna si C. Berlic
Liquid Crystals Physics (University of Bucharest Press, 2002).

2003

V. Popa-Nita and P.Oswald
" Waves at the nematic-isotropic interface: role of surface tension anisotropy, curvature elasticity and backflow effects"
Phys. Rev. E 66, 061707 (2003).

2004

S. Kralj and V. Popa-Nita
" Random Anisotropy Nematic Model: Connection with Experimental Systems"
Eur. Phys. J. E 14, 115 (2004).

2005

V. Popa-Nita, P. Oswald, and T. J. Sluckin
" Waves at the Nematic-Isotropic Interface"
Mol. Cryst. Liq. Cryst., 435, 215 (2005).

V. Popa-Nita and Samo Kralj
" Transformation of phase transitions driven by an anisotropic random field"
Phys. Rev. E 71, 042701 (2005).

V. Popa-Nita, T. J. Sluckin, and S. Kralj
“Waves at the nematic-isotropic interface: thermotropic nematogen—non-nematogen mixtures”
Phys. Rev E 71, 061706 (2005).
[Download pdf - 226Kb]

2006

S.Beslagic, I. Gerlic, S. Kralj, and V. Popa-Nita
"Phase Behavior and Structure of Weakly Perturbed Liquid Crystals"

Mol. Cryst. Liq. Cryst. 449, 135 (2006).

V. Popa-Nita and Samo Kralj
"Random anisotropy nematic model: nematic--non-nematic mixture"
Phys. Rev. E 73, 041705 (2006).

V. Popa-Nita (editor)
"Phase transitions. Applications in liquid crystals, organic electronic and optoelectronic fields" (Research Signpost, 2006).
Two puplished paper in the book:

V. Popa-Nita

"Phase transitions in liquid crystals - Brief introduction" pag. 1


S. Kralj, V. Popa-Nita and M. Svetec
"Random anisotropy liquid crystal model" pag. 79

V. Popa-Nita, P. van der Schoot, and S. Kralj
“Influence of a random field on particle fractionation and solidification
in liquid crystal colloid mixtures”

Eur. Phys. J. E 21,189 (2006).

2007

V. Popa-Nita and T. J. Sluckin
" Waves at the nematic-isotropic interface:
nematic--non-nematic and polymer-nematic mixtures"
in Soft Matter under Exogenic Impacts,
Edited by S. J. Rzoska and V. A. Mazur (Springer 2007)
[Download pdf - 225Kb]


V. Popa-Nita
and P. Oswald
"Surface tension and capillary waves at the nematic-isotropic interface
in ternary mixtures of liquid crystal, colloids, and impurities
"
J. of Chem. Phys. 127, 104702 (2007).

2008

S. Kralj, Z. Bradac and V. Popa-Nita
"The influence of nanoparticles on the phase and structural ordering for nematic liquid crystals"
J. Phys.: Condens. Matter 20, 244112 (2008).

P. van der Schoot, V. Popa-Nita, and S. Kralj
" Alignment of Carbon Nanotubes in Nematic Liquid Crystals"
J. Phys. Chem. B 112, 4512 (2008).

2009

Vlad Popa-Nita, Ivan Gerlic and Samo Kralj
" The Influence of Disorder on Thermotropic Nematic Liquid Crystal Phase Behaviour"
Int. J. Mol. Sci. 10, 3971 (2009).

2010

V. Popa-Nita and S. Kralj
" Liquid crystal-carbon nanotubes mixtures"
J. of Chem. Phys. 132, 024902 (2010).

2011

Vlad Popa-Nita, Matej Cvetko and Samo Kralj
"Liquid Crystal - Anisotropic nanoparticles Mixtures

in "Electronic properties of carbon nanotubes" Jose Mauricio Marulanda (editor)
chapter. 29 (Intech 2011)

2012

Robert Repnick, Vlad Popa-Nita and Samo Kralj
"Mixtures of Nanoparticles and Liquid Crystal Phases Exhibiting Topological Defects"
Mol. Cryst. Liq Cryst 560, 115 (2012).

V. Popa-Nita and S. Bucek
"Length Bidisperse Carbon Nanotubs Dispersions in Thermotropic Liquid Crystals"
Physics Research International 750890 (2012)

2013

Vlad Popa-Nita, Valentin Barna, Robert Repnick and Samo Kralj
"Mixtures Composed by Liquid Crystals and Nanoparticles"
In Recent Progress in Carbon Nanotubes Research/Book 1 (ISBN 980-307-536-0)

P. Oswald, G. Poy, F. Vittoz, V. Popa-Nita
"Experimental relantionship between surface and bulk rotational viscosities
in nematic liquid crystals"
Liquid Crystals 2013

 

 

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