TY  - JOUR
AU  - Ivić, Zoran
AU  - Zeković, Slobodan
AU  - Čevizović, Dalibor
AU  - Kostić, Dragan
AU  - Vujicic, G
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2901
AB  - We study the effect of the small-polaron induced changes of phonon spectra on charge transfer in molecular solids. Noticeable discrepancy with the predictions of the traditional small-polaron theories is observed: accounting of phonon hardening yields significantly lower estimates for small-polaron resistivity than that obtained on the basis of conventional approaches. This especially concerns the low temperature limit in which transport processes are dominated by the band like motion of charge carriers. This difference gradually disappears with the increasing of coupling constant and temperature. (c) 2005 Elsevier B.V. All rights reserved.
T2  - Physica B: Condensed Matter
T1  - Small-polaron resistivity of the narrow band molecular chain: The influence of phonon hardening
VL  - 362
IS  - 1-4
SP  - 187
EP  - 192
DO  - 10.1016/j.physb.2005.02.010
ER  - 

@article{
author = "Ivić, Zoran and Zeković, Slobodan and Čevizović, Dalibor and Kostić, Dragan and Vujicic, G",
year = "2005",
abstract = "We study the effect of the small-polaron induced changes of phonon spectra on charge transfer in molecular solids. Noticeable discrepancy with the predictions of the traditional small-polaron theories is observed: accounting of phonon hardening yields significantly lower estimates for small-polaron resistivity than that obtained on the basis of conventional approaches. This especially concerns the low temperature limit in which transport processes are dominated by the band like motion of charge carriers. This difference gradually disappears with the increasing of coupling constant and temperature. (c) 2005 Elsevier B.V. All rights reserved.",
journal = "Physica B: Condensed Matter",
title = "Small-polaron resistivity of the narrow band molecular chain: The influence of phonon hardening",
volume = "362",
number = "1-4",
pages = "187-192",
doi = "10.1016/j.physb.2005.02.010"
}

Ivić, Z., Zeković, S., Čevizović, D., Kostić, D.,& Vujicic, G.. (2005). Small-polaron resistivity of the narrow band molecular chain: The influence of phonon hardening. in Physica B: Condensed Matter, 362(1-4), 187-192.
https://doi.org/10.1016/j.physb.2005.02.010

Ivić Z, Zeković S, Čevizović D, Kostić D, Vujicic G. Small-polaron resistivity of the narrow band molecular chain: The influence of phonon hardening. in Physica B: Condensed Matter. 2005;362(1-4):187-192.
doi:10.1016/j.physb.2005.02.010 .

Ivić, Zoran, Zeković, Slobodan, Čevizović, Dalibor, Kostić, Dragan, Vujicic, G, "Small-polaron resistivity of the narrow band molecular chain: The influence of phonon hardening" in Physica B: Condensed Matter, 362, no. 1-4 (2005):187-192,
https://doi.org/10.1016/j.physb.2005.02.010 . .

TY  - JOUR
AU  - Ivić, Zoran
AU  - Zeković, Slobodan
AU  - Čevizović, Dalibor
AU  - Kostić, Dragan
PY  - 2005
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2851
AB  - The influence of the small-polaron effect on the vibrational properties of the strongly coupled electron-phonon system is investigated. It was found that polaron-phonon interaction may cause a noticeable renormalization of the phonon spectra. These changes may be observed by the measurements of the speed of sound for which a very specific dependence on temperature, values of coupling constant and adiabatic parameter is expected. We also found that the rise of the small-polaron effective mass as a function of the coupling constant should be considerably moderated than that anticipated without taking into account the modification of the vibrational spectra. (C) 2004 Elsevier B.V. All rights reserved.
T2  - Physica B: Condensed Matter
T1  - Phonon hardening due to the small-polaron effect
VL  - 355
IS  - 1-4
SP  - 417
EP  - 426
DO  - 10.1016/j.physb.2004.11.070
ER  - 

@article{
author = "Ivić, Zoran and Zeković, Slobodan and Čevizović, Dalibor and Kostić, Dragan",
year = "2005",
abstract = "The influence of the small-polaron effect on the vibrational properties of the strongly coupled electron-phonon system is investigated. It was found that polaron-phonon interaction may cause a noticeable renormalization of the phonon spectra. These changes may be observed by the measurements of the speed of sound for which a very specific dependence on temperature, values of coupling constant and adiabatic parameter is expected. We also found that the rise of the small-polaron effective mass as a function of the coupling constant should be considerably moderated than that anticipated without taking into account the modification of the vibrational spectra. (C) 2004 Elsevier B.V. All rights reserved.",
journal = "Physica B: Condensed Matter",
title = "Phonon hardening due to the small-polaron effect",
volume = "355",
number = "1-4",
pages = "417-426",
doi = "10.1016/j.physb.2004.11.070"
}

Ivić, Z., Zeković, S., Čevizović, D.,& Kostić, D.. (2005). Phonon hardening due to the small-polaron effect. in Physica B: Condensed Matter, 355(1-4), 417-426.
https://doi.org/10.1016/j.physb.2004.11.070

Ivić Z, Zeković S, Čevizović D, Kostić D. Phonon hardening due to the small-polaron effect. in Physica B: Condensed Matter. 2005;355(1-4):417-426.
doi:10.1016/j.physb.2004.11.070 .

Ivić, Zoran, Zeković, Slobodan, Čevizović, Dalibor, Kostić, Dragan, "Phonon hardening due to the small-polaron effect" in Physica B: Condensed Matter, 355, no. 1-4 (2005):417-426,
https://doi.org/10.1016/j.physb.2004.11.070 . .

TY  - JOUR
AU  - Ivić, Zoran
AU  - Zeković, Slobodan
AU  - Kostić, Dragan
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2501
AB  - We report the results of theoretical examinations of large polaron motion in one-dimensional (1D) molecular crystals under the influence of thermal fluctuations of the host lattice and constant electric field. Such a situation may arise in biological macromolecules such as an alpha helix where charge (electron) transfer may be achieved by a polaron (soliton) mechanism. In that case, the electric field represents the effective endogenous electric field which is always present in realistic conditions. We derive and solve the Fokker-Planck equation for the distribution function of the solitons center-of-mass position. It is shown that the soliton effectively exhibits a random walk. Moreover, in order to examine statistical properties of the soliton wave function, we calculate the mean value of the soliton probability density: LT \beta(x,t)\(2) GT and we find that, for sufficiently large times, thermal fluctuations destruct the soliton, which transforms into the Gaussian packet. These results were used in order to estimate the relevance of the soliton model of charge transfer in polypeptide chains.
T2  - Physical Review E
T1  - Finite-temperature large acoustic polaron dynamics in quasi-one-dimensional molecular crystals
VL  - 65
IS  - 2
DO  - 10.1103/PhysRevE.65.021911
ER  - 

@article{
author = "Ivić, Zoran and Zeković, Slobodan and Kostić, Dragan",
year = "2002",
abstract = "We report the results of theoretical examinations of large polaron motion in one-dimensional (1D) molecular crystals under the influence of thermal fluctuations of the host lattice and constant electric field. Such a situation may arise in biological macromolecules such as an alpha helix where charge (electron) transfer may be achieved by a polaron (soliton) mechanism. In that case, the electric field represents the effective endogenous electric field which is always present in realistic conditions. We derive and solve the Fokker-Planck equation for the distribution function of the solitons center-of-mass position. It is shown that the soliton effectively exhibits a random walk. Moreover, in order to examine statistical properties of the soliton wave function, we calculate the mean value of the soliton probability density: LT \beta(x,t)\(2) GT and we find that, for sufficiently large times, thermal fluctuations destruct the soliton, which transforms into the Gaussian packet. These results were used in order to estimate the relevance of the soliton model of charge transfer in polypeptide chains.",
journal = "Physical Review E",
title = "Finite-temperature large acoustic polaron dynamics in quasi-one-dimensional molecular crystals",
volume = "65",
number = "2",
doi = "10.1103/PhysRevE.65.021911"
}

Ivić, Z., Zeković, S.,& Kostić, D.. (2002). Finite-temperature large acoustic polaron dynamics in quasi-one-dimensional molecular crystals. in Physical Review E, 65(2).
https://doi.org/10.1103/PhysRevE.65.021911

Ivić Z, Zeković S, Kostić D. Finite-temperature large acoustic polaron dynamics in quasi-one-dimensional molecular crystals. in Physical Review E. 2002;65(2).
doi:10.1103/PhysRevE.65.021911 .

Ivić, Zoran, Zeković, Slobodan, Kostić, Dragan, "Finite-temperature large acoustic polaron dynamics in quasi-one-dimensional molecular crystals" in Physical Review E, 65, no. 2 (2002),
https://doi.org/10.1103/PhysRevE.65.021911 . .

TY  - JOUR
AU  - Ivić, Zoran
AU  - Zeković, Slobodan
AU  - Pržulj, Željko
PY  - 2002
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2599
AB  - Finite temperature dynamics and stability of the adiabatic large acoustic polaron in one-dimensional systems have been examined by means of the perturbation method based upon the inverse scattering transform. Polaron life-time was estimated in dependence of temperature and electron (exciton)-phonon coupling constant. (C) 2002 Elsevier Science B.V. All rights reserved.
T2  - Physics Letters A
T1  - Radiative decay of the one-dimensional large acoustic polaron
VL  - 306
IS  - 2-3
SP  - 144
EP  - 152
DO  - 10.1016/S0375-9601(02)01554-2
ER  - 

@article{
author = "Ivić, Zoran and Zeković, Slobodan and Pržulj, Željko",
year = "2002",
abstract = "Finite temperature dynamics and stability of the adiabatic large acoustic polaron in one-dimensional systems have been examined by means of the perturbation method based upon the inverse scattering transform. Polaron life-time was estimated in dependence of temperature and electron (exciton)-phonon coupling constant. (C) 2002 Elsevier Science B.V. All rights reserved.",
journal = "Physics Letters A",
title = "Radiative decay of the one-dimensional large acoustic polaron",
volume = "306",
number = "2-3",
pages = "144-152",
doi = "10.1016/S0375-9601(02)01554-2"
}

Ivić, Z., Zeković, S.,& Pržulj, Ž.. (2002). Radiative decay of the one-dimensional large acoustic polaron. in Physics Letters A, 306(2-3), 144-152.
https://doi.org/10.1016/S0375-9601(02)01554-2

Ivić Z, Zeković S, Pržulj Ž. Radiative decay of the one-dimensional large acoustic polaron. in Physics Letters A. 2002;306(2-3):144-152.
doi:10.1016/S0375-9601(02)01554-2 .

Ivić, Zoran, Zeković, Slobodan, Pržulj, Željko, "Radiative decay of the one-dimensional large acoustic polaron" in Physics Letters A, 306, no. 2-3 (2002):144-152,
https://doi.org/10.1016/S0375-9601(02)01554-2 . .

TY  - JOUR
AU  - Tekić, Jasmina
AU  - Ivić, Zoran
AU  - Zeković, Slobodan
AU  - Pržulj, Željko
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2265
AB  - The Fokker-Planck equation for multivibron solitons interacting with lattice vibrations in a molecular chain has been derived by means of the nonequilibrium statistical operator method. It was shown that a soliton undergoes diffusive motion characterized by two substantially different diffusion coefficients. The first one corresponds to the ordinary: (Einsteinian or dissipative) diffusion and characterizes the soliton Brownian motion, while the second one corresponds to the anomalous diffusion connected with frictionless displacement of the soliton center of mass coordinate due to the interaction with phonons. Both processes are the consequence of the Cherenkov-like radiation of phonon quanta arising when soliton velocity approaches the phase speed of sound. [S1063-651X(99)01707-9].
T2  - Physical Review E
T1  - Kinetic properties of multiquanta Davydov-like solitons in molecular chains
VL  - 60
IS  - 1
SP  - 821
EP  - 825
DO  - 10.1103/PhysRevE.60.821
ER  - 

@article{
author = "Tekić, Jasmina and Ivić, Zoran and Zeković, Slobodan and Pržulj, Željko",
year = "1999",
abstract = "The Fokker-Planck equation for multivibron solitons interacting with lattice vibrations in a molecular chain has been derived by means of the nonequilibrium statistical operator method. It was shown that a soliton undergoes diffusive motion characterized by two substantially different diffusion coefficients. The first one corresponds to the ordinary: (Einsteinian or dissipative) diffusion and characterizes the soliton Brownian motion, while the second one corresponds to the anomalous diffusion connected with frictionless displacement of the soliton center of mass coordinate due to the interaction with phonons. Both processes are the consequence of the Cherenkov-like radiation of phonon quanta arising when soliton velocity approaches the phase speed of sound. [S1063-651X(99)01707-9].",
journal = "Physical Review E",
title = "Kinetic properties of multiquanta Davydov-like solitons in molecular chains",
volume = "60",
number = "1",
pages = "821-825",
doi = "10.1103/PhysRevE.60.821"
}

Tekić, J., Ivić, Z., Zeković, S.,& Pržulj, Ž.. (1999). Kinetic properties of multiquanta Davydov-like solitons in molecular chains. in Physical Review E, 60(1), 821-825.
https://doi.org/10.1103/PhysRevE.60.821

Tekić J, Ivić Z, Zeković S, Pržulj Ž. Kinetic properties of multiquanta Davydov-like solitons in molecular chains. in Physical Review E. 1999;60(1):821-825.
doi:10.1103/PhysRevE.60.821 .

Tekić, Jasmina, Ivić, Zoran, Zeković, Slobodan, Pržulj, Željko, "Kinetic properties of multiquanta Davydov-like solitons in molecular chains" in Physical Review E, 60, no. 1 (1999):821-825,
https://doi.org/10.1103/PhysRevE.60.821 . .

TY  - JOUR
AU  - Zeković, Slobodan
AU  - Ivić, Zoran
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6268
AB  - Relaxation of the multivibron soliton in molecular chain on lattice vibrations is investigated within the simple microscopic model. It was shown that its dynamics is governed by the nonlinear Schrodinger equation containing damping term. Its appearance is the consequence of the emission and absorption of real phonons arising when soliton velocity approaches the phase speed of sound. Explicit time dependence of the soliton parameters results as a consequence of these perturbations. In particular, soliton amplitude decreases while its width increases. (C) 1999 Elsevier Science S.A. All rights reserved.
T2  - Bioelectrochemistry and Bioenergetics
T1  - Damping and modification of the multiquanta Davydov-like solitons in molecular chains
VL  - 48
IS  - 2
SP  - 297
EP  - 300
DO  - 10.1016/S0302-4598(99)00014-8
ER  - 

@article{
author = "Zeković, Slobodan and Ivić, Zoran",
year = "1999",
abstract = "Relaxation of the multivibron soliton in molecular chain on lattice vibrations is investigated within the simple microscopic model. It was shown that its dynamics is governed by the nonlinear Schrodinger equation containing damping term. Its appearance is the consequence of the emission and absorption of real phonons arising when soliton velocity approaches the phase speed of sound. Explicit time dependence of the soliton parameters results as a consequence of these perturbations. In particular, soliton amplitude decreases while its width increases. (C) 1999 Elsevier Science S.A. All rights reserved.",
journal = "Bioelectrochemistry and Bioenergetics",
title = "Damping and modification of the multiquanta Davydov-like solitons in molecular chains",
volume = "48",
number = "2",
pages = "297-300",
doi = "10.1016/S0302-4598(99)00014-8"
}

Zeković, S.,& Ivić, Z.. (1999). Damping and modification of the multiquanta Davydov-like solitons in molecular chains. in Bioelectrochemistry and Bioenergetics, 48(2), 297-300.
https://doi.org/10.1016/S0302-4598(99)00014-8

Zeković S, Ivić Z. Damping and modification of the multiquanta Davydov-like solitons in molecular chains. in Bioelectrochemistry and Bioenergetics. 1999;48(2):297-300.
doi:10.1016/S0302-4598(99)00014-8 .

Zeković, Slobodan, Ivić, Zoran, "Damping and modification of the multiquanta Davydov-like solitons in molecular chains" in Bioelectrochemistry and Bioenergetics, 48, no. 2 (1999):297-300,
https://doi.org/10.1016/S0302-4598(99)00014-8 . .

TY  - JOUR
AU  - Satarić, Miljko V.
AU  - Zeković, Slobodan
AU  - Tuszynski, Jack A.
AU  - Pokorny, J
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2207
AB  - We investigate the electronic degrees of freedom in cytoskeletal microtubules in the continuum approximation. The equations of motion of the propagating local conformational state are solved in the low temperature regime. The solution, which is a kink excitation, is coupled to the motion of the mobile electron of the constituent tubulin. We calculate the influence of kink excitations on the probability of the Mossbauer emission of gamma-active nuclei. A discussion follows on this potentially useful experimental tool for the detection of nonlinear excitations in a microtubule. [S1063-651X(98)14810-9].
T2  - Physical Review E
T1  - Mossbauer effect as a possible tool in detecting nonlinear excitations in microtubules
VL  - 58
IS  - 5
SP  - 6333
EP  - 6339
DO  - 10.1103/PhysRevE.58.6333
ER  - 

@article{
author = "Satarić, Miljko V. and Zeković, Slobodan and Tuszynski, Jack A. and Pokorny, J",
year = "1998",
abstract = "We investigate the electronic degrees of freedom in cytoskeletal microtubules in the continuum approximation. The equations of motion of the propagating local conformational state are solved in the low temperature regime. The solution, which is a kink excitation, is coupled to the motion of the mobile electron of the constituent tubulin. We calculate the influence of kink excitations on the probability of the Mossbauer emission of gamma-active nuclei. A discussion follows on this potentially useful experimental tool for the detection of nonlinear excitations in a microtubule. [S1063-651X(98)14810-9].",
journal = "Physical Review E",
title = "Mossbauer effect as a possible tool in detecting nonlinear excitations in microtubules",
volume = "58",
number = "5",
pages = "6333-6339",
doi = "10.1103/PhysRevE.58.6333"
}

Satarić, M. V., Zeković, S., Tuszynski, J. A.,& Pokorny, J.. (1998). Mossbauer effect as a possible tool in detecting nonlinear excitations in microtubules. in Physical Review E, 58(5), 6333-6339.
https://doi.org/10.1103/PhysRevE.58.6333

Satarić MV, Zeković S, Tuszynski JA, Pokorny J. Mossbauer effect as a possible tool in detecting nonlinear excitations in microtubules. in Physical Review E. 1998;58(5):6333-6339.
doi:10.1103/PhysRevE.58.6333 .

Satarić, Miljko V., Zeković, Slobodan, Tuszynski, Jack A., Pokorny, J, "Mossbauer effect as a possible tool in detecting nonlinear excitations in microtubules" in Physical Review E, 58, no. 5 (1998):6333-6339,
https://doi.org/10.1103/PhysRevE.58.6333 . .

TY  - JOUR
AU  - Satarić, Miljko V.
AU  - Žakula, R. B.
AU  - Zeković, Slobodan
AU  - Pokorny, J
AU  - Fiala, J
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2010
AB  - In this paper we investigate the change of microtubule cylinders length in the presence of endogenous AC fields generated by the cell itself. The dynamics of microtubule is described on the basis of classical u(4) model. The average stretching is calculated by using Kubos formalism for linear response of system.
T2  - Biosystems
T1  - The change of microtubule length caused by endogenous AC fields in cell
VL  - 39
IS  - 2
SP  - 127
EP  - 133
DO  - 10.1016/0303-2647(96)01610-3
ER  - 

@article{
author = "Satarić, Miljko V. and Žakula, R. B. and Zeković, Slobodan and Pokorny, J and Fiala, J",
year = "1996",
abstract = "In this paper we investigate the change of microtubule cylinders length in the presence of endogenous AC fields generated by the cell itself. The dynamics of microtubule is described on the basis of classical u(4) model. The average stretching is calculated by using Kubos formalism for linear response of system.",
journal = "Biosystems",
title = "The change of microtubule length caused by endogenous AC fields in cell",
volume = "39",
number = "2",
pages = "127-133",
doi = "10.1016/0303-2647(96)01610-3"
}

Satarić, M. V., Žakula, R. B., Zeković, S., Pokorny, J.,& Fiala, J.. (1996). The change of microtubule length caused by endogenous AC fields in cell. in Biosystems, 39(2), 127-133.
https://doi.org/10.1016/0303-2647(96)01610-3

Satarić MV, Žakula RB, Zeković S, Pokorny J, Fiala J. The change of microtubule length caused by endogenous AC fields in cell. in Biosystems. 1996;39(2):127-133.
doi:10.1016/0303-2647(96)01610-3 .

Satarić, Miljko V., Žakula, R. B., Zeković, Slobodan, Pokorny, J, Fiala, J, "The change of microtubule length caused by endogenous AC fields in cell" in Biosystems, 39, no. 2 (1996):127-133,
https://doi.org/10.1016/0303-2647(96)01610-3 . .

TY  - JOUR
AU  - Satarić, Miljko V.
AU  - Pokorny, J
AU  - Fiala, J
AU  - Žakula, R. B.
AU  - Zeković, Slobodan
PY  - 1996
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7224
AB  - In this paper, we investigate the influence of endogenous d.c. and a.c. fields on the dynamics of microtubules in living cells. The dynamics of microtubules can be described by the adapted classical non-linear u(4) model convenient for systems with dipole-dipole interaction. It is demonstrated that, on the basis of this model, several properties of the dynamics of microtubules can be clarified.
T2  - Bioelectrochemistry and Bioenergetics
T1  - Microtubules in interactions with endogenous dc and ac fields in living cells
VL  - 41
IS  - 1
SP  - 53
EP  - 58
DO  - 10.1016/0302-4598(96)01928-9
ER  - 

@article{
author = "Satarić, Miljko V. and Pokorny, J and Fiala, J and Žakula, R. B. and Zeković, Slobodan",
year = "1996",
abstract = "In this paper, we investigate the influence of endogenous d.c. and a.c. fields on the dynamics of microtubules in living cells. The dynamics of microtubules can be described by the adapted classical non-linear u(4) model convenient for systems with dipole-dipole interaction. It is demonstrated that, on the basis of this model, several properties of the dynamics of microtubules can be clarified.",
journal = "Bioelectrochemistry and Bioenergetics",
title = "Microtubules in interactions with endogenous dc and ac fields in living cells",
volume = "41",
number = "1",
pages = "53-58",
doi = "10.1016/0302-4598(96)01928-9"
}

Satarić, M. V., Pokorny, J., Fiala, J., Žakula, R. B.,& Zeković, S.. (1996). Microtubules in interactions with endogenous dc and ac fields in living cells. in Bioelectrochemistry and Bioenergetics, 41(1), 53-58.
https://doi.org/10.1016/0302-4598(96)01928-9

Satarić MV, Pokorny J, Fiala J, Žakula RB, Zeković S. Microtubules in interactions with endogenous dc and ac fields in living cells. in Bioelectrochemistry and Bioenergetics. 1996;41(1):53-58.
doi:10.1016/0302-4598(96)01928-9 .

Satarić, Miljko V., Pokorny, J, Fiala, J, Žakula, R. B., Zeković, Slobodan, "Microtubules in interactions with endogenous dc and ac fields in living cells" in Bioelectrochemistry and Bioenergetics, 41, no. 1 (1996):53-58,
https://doi.org/10.1016/0302-4598(96)01928-9 . .