Zobrazeno 1 - 10
of 17
pro vyhledávání: '"G. S. Zavt"'
Publikováno v:
Philosophical Magazine B. 71:649-660
The basic aim of the present investigation is to get some insight into the role played by anharmonicity in the energy transport of disordered materials. We consider a harmonically disordered chain with a regular array of quartic nearest-neighbour anh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e273f98e53fdf68fca62b0780ee2c17
https://doi.org/10.1080/01418639508238554
https://doi.org/10.1080/01418639508238554
Publikováno v:
Physical Review B. 50:7046-7055
We examine the stability of spin-polarized cluster states (ferrons) which appear by hole doping of the antiferromagnetically ordered ${\mathrm{CuO}}_{2}$ planes in the high-${\mathit{T}}_{\mathit{c}}$ cuprates. The influence of additional holes is ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e26563247ef386a470072032d1aa32fe
https://doi.org/10.1103/physrevb.50.7046
https://doi.org/10.1103/physrevb.50.7046
Publikováno v:
Physical Review E. 47:4108-4119
In a harmonically disordered chain with a regular array of quartic nearest-neighbor anharmonicity we have found a constructive or conflicting interplay of Anderson localization and solitary solutions depending on the type of initial excitation (momen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8df199883287e608b88ace9d5d46d930
https://doi.org/10.1103/physreve.47.4108
https://doi.org/10.1103/physreve.47.4108
Autor:
A. Lütze, Th. Mougios, W. Frizzera, Gabriele Viliani, Max Wagner, J. Vazquez-Marquez, G. S. Zavt, Maurizio Montagna, O. Pilla
Publikováno v:
Philosophical Magazine B. 65:273-287
Several unexpected features of energy transport in one-dimensional regular and disturbed systems are presented. In the classical case the propagation strongly depends on the type of initial excitation in both the disturbed and disordered chain. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e67060d94c16bfb71dcad49ebe86e6b
https://doi.org/10.1080/13642819208217902
https://doi.org/10.1080/13642819208217902
Publikováno v:
Springer Series in Solid-State Sciences ISBN: 9783642848902
The contribution adresses the problem of the combined effect of disorder and nonlinearity on energy transport in oscillatory systems. This problem is relevant for theories of heat conduction in disordered systems and of relaxation processes initiated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c27a4d1465d1a3e415ac56aa3b6d577
https://doi.org/10.1007/978-3-642-84888-9_87
https://doi.org/10.1007/978-3-642-84888-9_87
Publikováno v:
Physical review. B, Condensed matter. 44(22)
We study the behavior of an extra hole added to the ground state of the antiferromagnetically ordered ${\mathrm{CuO}}_{2}$ plane. Both the Cu-O hybridization (characterized by parameter T) and the O-O transfer (\ensuremath{\sim}t) are taken into acco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::498a35c1da66fbdf9ad231ea99f60616
https://pubmed.ncbi.nlm.nih.gov/9999438
https://pubmed.ncbi.nlm.nih.gov/9999438
Publikováno v:
Physica Status Solidi (b). 81:57-68
The first-order Raman scattering induced by the NO molecule in KI and RbCl is measured. The spectral features are compared with those observed in the ultraviolet and infrared spectra. The spectral properties are interpreted within the models which ta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a1865ed56838b051844c14718a14ec5
https://doi.org/10.1002/pssb.2220810104
https://doi.org/10.1002/pssb.2220810104
Publikováno v:
Journal of Physics C: Solid State Physics. 17:2839-2858
The results of theoretical and experimental study of vibrational relaxation processes in impurity centres with a strong electron-phonon interaction are presented. General expressions are obtained which describe the temporal evolution of the configura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c32a1cb25d6c16bfb7d04295b5cdc16
https://doi.org/10.1088/0022-3719/17/16/004
https://doi.org/10.1088/0022-3719/17/16/004
Autor:
G. S. Zavt, V. I. Altukhov
Publikováno v:
physica status solidi (b). 65:83-92
The interference of the anharmonic and impurity scattering of phonons is investigated. In particular, a general formula is obtained for the resonant scattering of phonons by impurities taking into account the inelastic channel which is responsible fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d36d21293ae5467b8f7b1685ee6f83da
https://doi.org/10.1002/pssb.2220650106
https://doi.org/10.1002/pssb.2220650106
Publikováno v:
physica status solidi (b). 155:147-154
It is shown that the dispersion of the real and imaginary parts of the dielectric function of the TCNQ salts with methyl derivatives of pyridinium gives important information about the density of electronic states. It leads to the conclusion that a g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7be82fc76eba5c8e6f0c9190f8e61cba
https://doi.org/10.1002/pssb.2221550113
https://doi.org/10.1002/pssb.2221550113