TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Galović, Slobodanka
AU  - Zeković, Slobodan
AU  - Ivić, Zoran
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3654
AB  - The transition from band to hopping conductivity of small polaron is examined within Holsteins molecular crystal model. The conditions under which each of these mechanisms prevail are formulated in terms of the values of the coupling constant S and adiabatic parameter B. Particular attention was paid to the possible influence of the polaron induced modification of phonon spectrum. (C) 2008 Elsevier B.V. All rights reserved.
T2  - Physica B: Condensed Matter
T1  - Boundary between coherent and noncoherent small polaron motion: Influence of the phonon hardening
VL  - 404
IS  - 2
SP  - 270
EP  - 274
DO  - 10.1016/j.physb.2008.10.054
ER  - 

@article{
author = "Čevizović, Dalibor and Galović, Slobodanka and Zeković, Slobodan and Ivić, Zoran",
year = "2009",
abstract = "The transition from band to hopping conductivity of small polaron is examined within Holsteins molecular crystal model. The conditions under which each of these mechanisms prevail are formulated in terms of the values of the coupling constant S and adiabatic parameter B. Particular attention was paid to the possible influence of the polaron induced modification of phonon spectrum. (C) 2008 Elsevier B.V. All rights reserved.",
journal = "Physica B: Condensed Matter",
title = "Boundary between coherent and noncoherent small polaron motion: Influence of the phonon hardening",
volume = "404",
number = "2",
pages = "270-274",
doi = "10.1016/j.physb.2008.10.054"
}

Čevizović, D., Galović, S., Zeković, S.,& Ivić, Z.. (2009). Boundary between coherent and noncoherent small polaron motion: Influence of the phonon hardening. in Physica B: Condensed Matter, 404(2), 270-274.
https://doi.org/10.1016/j.physb.2008.10.054

Čevizović D, Galović S, Zeković S, Ivić Z. Boundary between coherent and noncoherent small polaron motion: Influence of the phonon hardening. in Physica B: Condensed Matter. 2009;404(2):270-274.
doi:10.1016/j.physb.2008.10.054 .

Čevizović, Dalibor, Galović, Slobodanka, Zeković, Slobodan, Ivić, Zoran, "Boundary between coherent and noncoherent small polaron motion: Influence of the phonon hardening" in Physica B: Condensed Matter, 404, no. 2 (2009):270-274,
https://doi.org/10.1016/j.physb.2008.10.054 . .

TY  - JOUR
AU  - Čevizović, Dalibor
AU  - Zeković, Slobodan
AU  - Ivić, Zoran
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3792
AB  - We investigate theoretically the possible manifestation of the small-polaron effect in the IR absorption spectrum of the one-dimensional molecular crystals. Phonon-induced relaxation of small-polarons is taken into account explicitly on the microscopic level. It was found that it may have substantial influence on optical properties of molecular crystals. Consequently, the accounting of the polaron relaxation effects on the microscopic level is necessary for proper understanding of the optical spectra of molecular crystals. Their hitherto interpretation in terms of polaron model, based on the phenomenological treatment of the polaron damping, has been critically assessed on the basis of our results. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Chemical Physics Letters
T1  - The influence of polaron-phonon interaction on absorption spectra in molecular crystals
VL  - 480
IS  - 1-3
SP  - 75
EP  - 81
DO  - 10.1016/j.cplett.2009.08.055
ER  - 

@article{
author = "Čevizović, Dalibor and Zeković, Slobodan and Ivić, Zoran",
year = "2009",
abstract = "We investigate theoretically the possible manifestation of the small-polaron effect in the IR absorption spectrum of the one-dimensional molecular crystals. Phonon-induced relaxation of small-polarons is taken into account explicitly on the microscopic level. It was found that it may have substantial influence on optical properties of molecular crystals. Consequently, the accounting of the polaron relaxation effects on the microscopic level is necessary for proper understanding of the optical spectra of molecular crystals. Their hitherto interpretation in terms of polaron model, based on the phenomenological treatment of the polaron damping, has been critically assessed on the basis of our results. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Chemical Physics Letters",
title = "The influence of polaron-phonon interaction on absorption spectra in molecular crystals",
volume = "480",
number = "1-3",
pages = "75-81",
doi = "10.1016/j.cplett.2009.08.055"
}

Čevizović, D., Zeković, S.,& Ivić, Z.. (2009). The influence of polaron-phonon interaction on absorption spectra in molecular crystals. in Chemical Physics Letters, 480(1-3), 75-81.
https://doi.org/10.1016/j.cplett.2009.08.055

Čevizović D, Zeković S, Ivić Z. The influence of polaron-phonon interaction on absorption spectra in molecular crystals. in Chemical Physics Letters. 2009;480(1-3):75-81.
doi:10.1016/j.cplett.2009.08.055 .

Čevizović, Dalibor, Zeković, Slobodan, Ivić, Zoran, "The influence of polaron-phonon interaction on absorption spectra in molecular crystals" in Chemical Physics Letters, 480, no. 1-3 (2009):75-81,
https://doi.org/10.1016/j.cplett.2009.08.055 . .

TY  - JOUR
AU  - Vosika, Zoran
AU  - Pržulj, Željko
AU  - Hadžievski, Ljupčo
AU  - Ivić, Zoran
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3727
AB  - The features of the moving large polaron are investigated within Holsteins molecular crystal model. The necessity to account for the phonon dispersion is emphasized and its impact on polaron properties is examined in detail. It was found that the large polaron dynamics is described by the nonlocal nonlinear Schrodinger equation. The character of its solutions is determined by the degree of nonlocality, which is specified by the polaron velocity and group velocity of the lattice modes. An analytic solution for the polaron wavefunction is obtained in the weakly nonlocal limit. It was found that the polaron velocity and phonon dispersion have a significant impact on the parameters and dynamics of large polarons. The polaron amplitude and effective mass increase while its spatial extent decreases with a rise in the degree of nonlocality. The criterion for the stability of large polaron is formulated in terms of the values of the degree of nonlocality, the magnitude of the basic energy parameters of the system and the polaron velocity. It turns out that the large polaron velocity cannot exceed a relatively small limiting value. A similar limitation on large polaron velocity has not been found in previous studies. The consequences of these results on polaron dynamics in realistic conditions are discussed.
T2  - Journal of Physics: Condensed Matter
T1  - Properties of the moving Holstein large polaron in one-dimensional molecular crystals
VL  - 21
IS  - 27
DO  - 10.1088/0953-8984/21/27/275404
ER  - 

@article{
author = "Vosika, Zoran and Pržulj, Željko and Hadžievski, Ljupčo and Ivić, Zoran",
year = "2009",
abstract = "The features of the moving large polaron are investigated within Holsteins molecular crystal model. The necessity to account for the phonon dispersion is emphasized and its impact on polaron properties is examined in detail. It was found that the large polaron dynamics is described by the nonlocal nonlinear Schrodinger equation. The character of its solutions is determined by the degree of nonlocality, which is specified by the polaron velocity and group velocity of the lattice modes. An analytic solution for the polaron wavefunction is obtained in the weakly nonlocal limit. It was found that the polaron velocity and phonon dispersion have a significant impact on the parameters and dynamics of large polarons. The polaron amplitude and effective mass increase while its spatial extent decreases with a rise in the degree of nonlocality. The criterion for the stability of large polaron is formulated in terms of the values of the degree of nonlocality, the magnitude of the basic energy parameters of the system and the polaron velocity. It turns out that the large polaron velocity cannot exceed a relatively small limiting value. A similar limitation on large polaron velocity has not been found in previous studies. The consequences of these results on polaron dynamics in realistic conditions are discussed.",
journal = "Journal of Physics: Condensed Matter",
title = "Properties of the moving Holstein large polaron in one-dimensional molecular crystals",
volume = "21",
number = "27",
doi = "10.1088/0953-8984/21/27/275404"
}

Vosika, Z., Pržulj, Ž., Hadžievski, L.,& Ivić, Z.. (2009). Properties of the moving Holstein large polaron in one-dimensional molecular crystals. in Journal of Physics: Condensed Matter, 21(27).
https://doi.org/10.1088/0953-8984/21/27/275404

Vosika Z, Pržulj Ž, Hadžievski L, Ivić Z. Properties of the moving Holstein large polaron in one-dimensional molecular crystals. in Journal of Physics: Condensed Matter. 2009;21(27).
doi:10.1088/0953-8984/21/27/275404 .

Vosika, Zoran, Pržulj, Željko, Hadžievski, Ljupčo, Ivić, Zoran, "Properties of the moving Holstein large polaron in one-dimensional molecular crystals" in Journal of Physics: Condensed Matter, 21, no. 27 (2009),
https://doi.org/10.1088/0953-8984/21/27/275404 . .

TY  - JOUR
AU  - Pržulj, Željko
AU  - Čevizović, Dalibor
AU  - Zeković, Slobodan
AU  - Ivić, Zoran
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3511
AB  - The temperature dependence of the position of the so-called anomalous band peaked at 1650 cm(-1) in the IR-absorption spectrum of crystalline acetanilide (ACN) is theoretically investigated within the small-polaron theory. Its pronounced shift towards the position of the normal band is predicted with the rise of temperature. Interpretation of the IR-absorption spectra in terms of small-polaron model has been critically assessed on the basis of these results. (c) 2008 Elsevier B. V. All rights reserved.
T2  - Chemical Physics Letters
T1  - Infrared absorption spectra of molecular crystals: Possible evidence for small-polaron formation?
VL  - 462
IS  - 4-6
SP  - 213
EP  - 216
DO  - 10.1016/j.cplett.2008.07.081
ER  - 

@article{
author = "Pržulj, Željko and Čevizović, Dalibor and Zeković, Slobodan and Ivić, Zoran",
year = "2008",
abstract = "The temperature dependence of the position of the so-called anomalous band peaked at 1650 cm(-1) in the IR-absorption spectrum of crystalline acetanilide (ACN) is theoretically investigated within the small-polaron theory. Its pronounced shift towards the position of the normal band is predicted with the rise of temperature. Interpretation of the IR-absorption spectra in terms of small-polaron model has been critically assessed on the basis of these results. (c) 2008 Elsevier B. V. All rights reserved.",
journal = "Chemical Physics Letters",
title = "Infrared absorption spectra of molecular crystals: Possible evidence for small-polaron formation?",
volume = "462",
number = "4-6",
pages = "213-216",
doi = "10.1016/j.cplett.2008.07.081"
}

Pržulj, Ž., Čevizović, D., Zeković, S.,& Ivić, Z.. (2008). Infrared absorption spectra of molecular crystals: Possible evidence for small-polaron formation?. in Chemical Physics Letters, 462(4-6), 213-216.
https://doi.org/10.1016/j.cplett.2008.07.081

Pržulj Ž, Čevizović D, Zeković S, Ivić Z. Infrared absorption spectra of molecular crystals: Possible evidence for small-polaron formation?. in Chemical Physics Letters. 2008;462(4-6):213-216.
doi:10.1016/j.cplett.2008.07.081 .

Pržulj, Željko, Čevizović, Dalibor, Zeković, Slobodan, Ivić, Zoran, "Infrared absorption spectra of molecular crystals: Possible evidence for small-polaron formation?" in Chemical Physics Letters, 462, no. 4-6 (2008):213-216,
https://doi.org/10.1016/j.cplett.2008.07.081 . .