Thermodynamics of a higher-order phase transition: Scaling exponents and scaling laws

@article{Kumar2002ThermodynamicsOA,
  title={Thermodynamics of a higher-order phase transition: Scaling exponents and scaling laws},
  author={P. Kumar and A. Saxena},
  journal={Philosophical Magazine B},
  year={2002},
  volume={82},
  pages={1201 - 1209}
}
Abstract The well-known scaling laws relating critical exponents in a second-order phase transition have been generalized to the case of an arbitrarily higher-order phase transition. In a higher-order transition, such as suggested for the superconducting transition in Ba0.6K0.4BiO3 and in Bi2Sr2CaCu2O8, there are singularities in higher-order derivatives of the free energy. A relation between exponents of different observables has been found, regardless of whether the exponents are classical… 
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