Phonons in ultrathin layered structures
Abstract
Phonon subsystem of ultrathin films was analysed using Greens functions of the displacement-displacement type, including quantum size effect and effect of boundaries onto Hamiltonian parameters. Diagonal components of Greens functions were evaluated, which enabled determination of the dispersion law, local densities of phonon states and Debye frequencies for thin films. A comparison with crystal bulk has shown that properties of thin films are strongly influenced both by the sample dimensions and boundary conditions. We have stated the conditions under which metal conductors could be made to become better superconductors. (C) 1999 Elsevier Science Ltd. All rights reserved.
Keywords:
thin films / phononsSource:
Journal of Physics and Chemistry of Solids, 1999, 60, 6, 849-854
DOI: 10.1016/S0022-3697(98)00332-1
ISSN: 0022-3697
WoS: 000080440400019
Scopus: 2-s2.0-0032631454
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Institution/Community
VinčaTY - JOUR AU - Lazarev, SB AU - Mirjanic, DL AU - Pantic, MR AU - Tosic, BS AU - Setrajcic, JP PY - 1999 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2252 AB - Phonon subsystem of ultrathin films was analysed using Greens functions of the displacement-displacement type, including quantum size effect and effect of boundaries onto Hamiltonian parameters. Diagonal components of Greens functions were evaluated, which enabled determination of the dispersion law, local densities of phonon states and Debye frequencies for thin films. A comparison with crystal bulk has shown that properties of thin films are strongly influenced both by the sample dimensions and boundary conditions. We have stated the conditions under which metal conductors could be made to become better superconductors. (C) 1999 Elsevier Science Ltd. All rights reserved. T2 - Journal of Physics and Chemistry of Solids T1 - Phonons in ultrathin layered structures VL - 60 IS - 6 SP - 849 EP - 854 DO - 10.1016/S0022-3697(98)00332-1 ER -
@article{ author = "Lazarev, SB and Mirjanic, DL and Pantic, MR and Tosic, BS and Setrajcic, JP", year = "1999", abstract = "Phonon subsystem of ultrathin films was analysed using Greens functions of the displacement-displacement type, including quantum size effect and effect of boundaries onto Hamiltonian parameters. Diagonal components of Greens functions were evaluated, which enabled determination of the dispersion law, local densities of phonon states and Debye frequencies for thin films. A comparison with crystal bulk has shown that properties of thin films are strongly influenced both by the sample dimensions and boundary conditions. We have stated the conditions under which metal conductors could be made to become better superconductors. (C) 1999 Elsevier Science Ltd. All rights reserved.", journal = "Journal of Physics and Chemistry of Solids", title = "Phonons in ultrathin layered structures", volume = "60", number = "6", pages = "849-854", doi = "10.1016/S0022-3697(98)00332-1" }
Lazarev, S., Mirjanic, D., Pantic, M., Tosic, B.,& Setrajcic, J.. (1999). Phonons in ultrathin layered structures. in Journal of Physics and Chemistry of Solids, 60(6), 849-854. https://doi.org/10.1016/S0022-3697(98)00332-1
Lazarev S, Mirjanic D, Pantic M, Tosic B, Setrajcic J. Phonons in ultrathin layered structures. in Journal of Physics and Chemistry of Solids. 1999;60(6):849-854. doi:10.1016/S0022-3697(98)00332-1 .
Lazarev, SB, Mirjanic, DL, Pantic, MR, Tosic, BS, Setrajcic, JP, "Phonons in ultrathin layered structures" in Journal of Physics and Chemistry of Solids, 60, no. 6 (1999):849-854, https://doi.org/10.1016/S0022-3697(98)00332-1 . .