What is the Landau-GinZburg-Devonshire free energy?

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Discussion Overview

The discussion centers around the Landau-GinZburg-Devonshire free energy, exploring its definition, context, and references for further reading. Participants express varying perspectives on the terminology and implications of "free energy" in scientific discourse.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants seek clarification on the Landau-GinZburg-Devonshire free energy and inquire about relevant literature.
  • One participant argues that the term "free energy" is misleading and should be referred to as "alternative energy," suggesting that the concept is often associated with non-scientific claims.
  • Another participant questions the validity of the previous claim, implying that the original poster may lack a proper understanding of statistical physics.
  • A participant mentions familiarity with the Landau-Devonshire model, noting it as an extension of Landau's work on weak first-order transitions, and provides references to relevant literature.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the terminology and implications of "free energy." There are competing views regarding the validity and acceptance of the term within the scientific community.

Contextual Notes

Some assumptions about the terminology and its implications remain unresolved, particularly regarding the distinction between "free energy" and "alternative energy." The discussion also reflects differing levels of familiarity with statistical physics concepts.

Silicon
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Who can explain the Landau-GinZburg-Devonshire free energy to me.
In which book can I find this conception?
 
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Silicon said:
Who can explain the Landau-GinZburg-Devonshire free energy to me.
In which book can I find this conception?


The Word Free Energy is a False Statement.

All those Free Energy Concepts should be called Alternative Energy.

You can not Get Energy for Free.:bugeye:

Crackpots call it Free Energy, A Researcher would call it Alternative Energy if it was Acceptable by the Scientific Community as a viable source of Alternative Energy given without Crackpottery.

Alternative Energy is the Conversion of one form of Work or Energy into usable Energy.

The Statement Free Energy has a Curse upon it just as Perputual Motion has a Curse upon it, It is not accepted in the Real Scientific Community and can be highly falsified just as thousands of others have using the terms Free Energy and Or Perpetual Motion as Advertisment of their scheme.:rolleyes:
 
Are you joking or something? If you have indeed studied your statistical physics course then I apologize.
 
I haven't come across Landau-GinZburg-Devonshire, but I have come come across Landau-Devonshire, which is an extension of Landau to weak first-order transitions with additional terms in the free energy expansion.

Lines, M. E., and Glass, A. M., 1979, Principles and Applications of Ferroelectrics and Related Materials

Devonshire, A. F., 1949, Phil. Mag., 40, 1040; 1951, ibid., 42, 1065; 1954, Phil. Mag. Suppl., 3, 85.

Damjanovic, D., 1998, Rep. Prog. Phys., 61, 1267.
 

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