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Nelinearna dinamika u okviru Frenkel-Kontorova modela pod dejstvom spoljašnjih periodičnih sila

Nonlinear dynamics of ac + dcdriven Frenkel-Kontorova model

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2015
Disertacija.pdf (3.410Mb)
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Author
Mali, Petar
Mentor
Pantić, Milan
Tekić, Jasmina
Committee members
Ivić, Zoran
Pantić, Milan
Tekić, Jasmina
Radošević, Slobodan
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Abstract
Ispitivan je generalisani Frenkel-Kontorova model pod dejstvom spoljašnjih periodičnih sila, i njihov uticaj na Šapiro stepenike. Deformacija substratnog potencijala prouzrokuje pojavu velikih polucelih i drugih subharmonijskih stepenika u sistemu. Rezultati dobijeni u radu su od značaja u talasima i spinovima gustine naboja kao i u Džozefsonovim spojevima.
Properties of the Shapiro steps in dierent commensurate structures of the ac + dc driven Frenkel-Kontorova model with dierent generalized substrate potential have been examined. Deviation from the sinusoidal potential produces appearance of large subharmonic steps. Presented results could be of great importance for thestudies of all real systems closely related to the dissipative dynamics of the FK model such as studies of the charge- or spin-density wave systems and the systems of Josephson-junction arrays.
Faculty:
Универзитет у Новом Саду, Природно-математички факултет
Date:
27-09-2015
Projects:
  • The influence of elementary excitations and conformations to physical properties of the new materials based on strongly correlated low-dimensional systems (RS-171009)
Keywords:
Frenkel-Kontorova model / Frenkel-Kontorova model / Džozefsonovi spojevi / KR talasi gustine naboja / Šapiro stepenici / haos / Josephson junctions / charge density waves / Shapiro steps / chaos
[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_nardus_1668
URI
https://nardus.mpn.gov.rs/handle/123456789/1668
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http://www.cris.uns.ac.rs/record.jsf?recordId=95366&source=NaRDuS&language=sr
http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije143626967972594.pdf?controlNumber=(BISIS)95366&fileName=143626967972594.pdf&id=3917&source=NaRDuS&language=sr

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