Matches in SemOpenAlex for { <https://semopenalex.org/work/W2116195639> ?p ?o ?g. }
- W2116195639 endingPage "255" @default.
- W2116195639 startingPage "137" @default.
- W2116195639 abstract "Early far infrared measurements with grating instruments on the low temperature properties of defects in alkali halides produced a variety of sharp features associated with local modes, gap modes, and resonant modes. The loss of periodicity in defect crystals lead to localized vibrational phenomena. The standard description of the dynamics of defect-free periodic lattices in terms of plane wave phonons is so deeply ingrained that it was surprising to many researchers that the presence of strong quartic anharmonicity in perfect lattices can also lead to localized vibrational modes, called “intrinsic localized modes” (ILMs). These papers studied the classical vibrational dynamics of a simple one-dimensional monatomic chain of particles interacting via nearest-neighbor harmonic and quartic anharmonic springs, and they used a rotating wave approximation (RWA), in which just one frequency component was kept in the time dependence. For the case of sufficiently strong positive quartic anharmonicity, it was found that the lattice could sustain stationary localized vibrations having the approximate mode pattern. This pattern is odd under reflection in the central site and is optic mode-like, in that adjacent particles move out of phase. As with all nonlinear vibrations, the ILM frequencies are amplitude dependent. The ILMs can be centered on any lattice site, giving rise to configurational entropy analogous to that for vacancies, and some thermodynamic ramifications, along with speculations about the possible presence of ILMs in strongly anharmonic solids, such as solid He and ferroelectrics." @default.
- W2116195639 created "2016-06-24" @default.
- W2116195639 creator A5008373344 @default.
- W2116195639 creator A5017881897 @default.
- W2116195639 date "1995-01-01" @default.
- W2116195639 modified "2023-09-26" @default.
- W2116195639 title "Chapter 3 Unusual anharmonic local mode systems" @default.
- W2116195639 cites W1964230408 @default.
- W2116195639 cites W1966355601 @default.
- W2116195639 cites W1967232532 @default.
- W2116195639 cites W1967406967 @default.
- W2116195639 cites W1967464524 @default.
- W2116195639 cites W1967863894 @default.
- W2116195639 cites W1971457534 @default.
- W2116195639 cites W1976944476 @default.
- W2116195639 cites W1987166071 @default.
- W2116195639 cites W1987440205 @default.
- W2116195639 cites W1988616660 @default.
- W2116195639 cites W1989024998 @default.
- W2116195639 cites W1993309231 @default.
- W2116195639 cites W1993855834 @default.
- W2116195639 cites W1994217590 @default.
- W2116195639 cites W1996446084 @default.
- W2116195639 cites W2000369010 @default.
- W2116195639 cites W2002228761 @default.
- W2116195639 cites W2008103625 @default.
- W2116195639 cites W2009284398 @default.
- W2116195639 cites W2009717385 @default.
- W2116195639 cites W2009820246 @default.
- W2116195639 cites W2011948956 @default.
- W2116195639 cites W2012857837 @default.
- W2116195639 cites W2016401347 @default.
- W2116195639 cites W2020589837 @default.
- W2116195639 cites W2023222444 @default.
- W2116195639 cites W2023268137 @default.
- W2116195639 cites W2023468268 @default.
- W2116195639 cites W2024328154 @default.
- W2116195639 cites W2025397195 @default.
- W2116195639 cites W2027125149 @default.
- W2116195639 cites W2027209871 @default.
- W2116195639 cites W2027674876 @default.
- W2116195639 cites W2028755719 @default.
- W2116195639 cites W2030186846 @default.
- W2116195639 cites W2031893166 @default.
- W2116195639 cites W2031975877 @default.
- W2116195639 cites W2034351645 @default.
- W2116195639 cites W2043450950 @default.
- W2116195639 cites W2044111429 @default.
- W2116195639 cites W2047041296 @default.
- W2116195639 cites W2049140367 @default.
- W2116195639 cites W2049776664 @default.
- W2116195639 cites W2050468410 @default.
- W2116195639 cites W2051811130 @default.
- W2116195639 cites W2053504745 @default.
- W2116195639 cites W2054434840 @default.
- W2116195639 cites W2055268675 @default.
- W2116195639 cites W2057490930 @default.
- W2116195639 cites W2059236254 @default.
- W2116195639 cites W2059684627 @default.
- W2116195639 cites W2060380906 @default.
- W2116195639 cites W2061533142 @default.
- W2116195639 cites W2063439987 @default.
- W2116195639 cites W2064185395 @default.
- W2116195639 cites W2066918922 @default.
- W2116195639 cites W2067270984 @default.
- W2116195639 cites W2067678971 @default.
- W2116195639 cites W2067986854 @default.
- W2116195639 cites W2068483186 @default.
- W2116195639 cites W2069226173 @default.
- W2116195639 cites W2069917553 @default.
- W2116195639 cites W2070587079 @default.
- W2116195639 cites W2074008364 @default.
- W2116195639 cites W2075775010 @default.
- W2116195639 cites W2077945258 @default.
- W2116195639 cites W2079198350 @default.
- W2116195639 cites W2079970368 @default.
- W2116195639 cites W2081073150 @default.
- W2116195639 cites W2082186884 @default.
- W2116195639 cites W2082404145 @default.
- W2116195639 cites W2082616539 @default.
- W2116195639 cites W2082715720 @default.
- W2116195639 cites W2084016486 @default.
- W2116195639 cites W2084178526 @default.
- W2116195639 cites W2085294512 @default.
- W2116195639 cites W2087137183 @default.
- W2116195639 cites W2087955349 @default.
- W2116195639 cites W2092315065 @default.
- W2116195639 cites W2092781159 @default.
- W2116195639 cites W2094904003 @default.
- W2116195639 cites W2100669879 @default.
- W2116195639 cites W2108210777 @default.
- W2116195639 cites W2109858170 @default.
- W2116195639 cites W2133118393 @default.
- W2116195639 cites W2141634907 @default.
- W2116195639 cites W2142797605 @default.
- W2116195639 cites W2144353925 @default.
- W2116195639 cites W2167903388 @default.
- W2116195639 cites W2329584481 @default.