sparse
发表于 2025-3-25 05:26:03
Anharmonic Properties near Structural Phase Transitions,sitions (SPT’s): Theoretically, it is expected that systems with lower effective lattice dimensionality and shorter ranges of forces are, near T., more dominated by correlated fluctuations (in space and time). Thus, intrinsic anharmonic behavior due to such . fluctuations is expected to become more
送秋波
发表于 2025-3-25 11:33:37
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farewell
发表于 2025-3-25 13:08:39
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流浪者
发表于 2025-3-25 17:19:37
Phason Light Scattering in BaMnF4, order parameter of the normal—incommensurate phase transition, and may be approximated symbolically as . where . is the reciprocal periodicity of the distortion and . is a constant phase. Since . is incommensurate, a uniform change in . clearly costs no energy. Hence, long wave length fluctuations
讽刺滑稽戏剧
发表于 2025-3-25 21:23:37
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prosthesis
发表于 2025-3-26 03:23:55
Solitons in the One-Dimensional Planar Ferromagnet CsNiF3,lane of the one-dimensional ferromagnet CSNiF.. It is shown that the observed central peak can be described in terms of the independent-soliton model proposed by Mikeska. In the geometry used there is no contribution to the observed scattering from the two-magnon processes which have been proposed a
Collected
发表于 2025-3-26 06:06:51
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right-atrium
发表于 2025-3-26 08:49:40
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才能
发表于 2025-3-26 15:06:15
Instabilities and Fluctuations,shold) and above which the system goes into the ordered phase. The buildup of the ordered phase is triggered by a spontaneous fluctuation. From a mathematical point of view, one notes that the macroscopic dynamic equations for self-organizing systems are intrinsically homogeneous, i.e. ρ = 0 must be
META
发表于 2025-3-26 17:54:52
Steady States, Limit Cycles and the Onset of Turbulence. A few Model Calculations and Exercises,and other aspects of real space turbulence and fully developped turbulence are completely left out here. My choice has been dictated by the seemingly fertile Ideas put forward fn the past few years, and the major importance that I think such Ideas have, at present, for the understanding of key mecha