This chapter starts with the fundamentals of Landau theory and continues to discuss the first- and second-order phase transition and their connections with a classical spin system. The order parameter (magnetization) is derived as a function of temperature and magnetic field; and, for the first-...
first-order transitionsThe basic concepts of the Landau theory of phase transitions are introduced through working examples. A number of rules governing the application of the theory to second and first-order transitions are given. The approach to magnetostructural transitions in magnetic mulltiferroic...
38 、Keywords Landau theory, free energy, base functions, ferroelectric phase transition, boracites, antiferroelectric phase transition, order parameter;───朗道理论;自由能;基函数;铁电相变;方硼盐;反铁电相变;序参量; 39 、Finally, we also get multi-loop hysteresis by Monte Carlo method which matc...
First Order Transitions Landau Theory of Incommensurate Phases The Landau Theory of Magnetic Transitions The Landau Theory of Liquid Crystals Recent Developments and Field of Validity of Landau's Theory Readership: We recommend Recommended Reconstructive Phase Transitions ...
网络朗道相变理论 网络释义 1. 朗道相变理论 朗道相变理论,Landau... ... ) Landau liquid helium theory 朗道液氦理论 )Landau theory of phase transition朗道相变理论... www.dictall.com|基于2个网页
On the basis of Landau theory, the free energy of boracites is regarded as the function of the three components p1, p2, p3 of the spontaneous polarization. 在朗道理论基础之上,将方硼盐的自由能始终看成自发极化矢量的3个分量p1,p2,p3的函数,利用极值条件和稳定性条件求出了方硼盐所有可能的铁电相...
The effect of the external field on the weakly-discontinuous first-order phase transition is analyzed in the frame of the Landau theory. The transformation of the free energy expansion as a power series in the order parameter is suggested that maps the first-order phase transition onto the secon...
Landau theory for the gas-liquid transition in a monomolecular layer of amphiphilic molecules 来自 dx.doi.org 喜欢 0 阅读量: 34 作者:JL Firpo,JJ Dupin,G Albinet,AG Bois,JF Baret 摘要: We propose a general framework for the study of the first-order transition in monolayers of amphiphilic ...
Landau theorystructural phase transitionorder-disorder transitionpseudoproper ferroelasticYBa 2Cu 3O 7-x/ A6470K Solid-solid transitions A7470V Perovskite phase superconductors/ YBa2Cu3O/ss Ba2/ss Cu3/ss Ba/ss Cu/ss O/ss Y/ssNot Availabledoi:10.1002/pssb.2221510148V. Dvo?ák...
We apply the Ginzburg criterion finding that fluctuations around the non-vanishing mean-field vacuum remain small at large correlation lengths regardless of the combinatorics of the non-local interaction validating the mean-field theory description of the phase transition. This work represents a first ...