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==Refereneces==
==Refereneces==
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Revision as of 15:40, 20 June 2018

The Universal Dielectric Response, or UDR, refers to the observed Emergent behaviour of the dielectric properties exhibited by diverse solid state systems. In particular this widely observed response involves power law scaling of dielectric properties with frequency under conditions of alternating current, AC. First defined in a landmark article by A. K. Jonscher in Nature published in 1977 [1], the origins of the UDR were attributed to the dominance many-body interactions in systems, and their analogous RC network equivalence. [2]

Significance of the UDR

The power law scaling of dielectric properties with frequency is valuable in interpreting impedance spectroscopy data towards the characterisation of responses in emerging ferroelectric and multiferroic materials. [3] [4]

Refereneces

  1. ^ Jonscher, Andrew K. (1977). "The 'universal'dielectric response". Nature. 267 (5613): 673. {{cite journal}}: Cite has empty unknown parameter: |1= (help)
  2. ^ Jonscher, Andrew K. (1992). "The universal dielectric response and its physical significance". ." IEEE Transactions on Electrical Insulation. 27 (3): 407. {{cite journal}}: Cite has empty unknown parameter: |1= (help)
  3. ^ MacDonald, J.R. (1985). "Generalizations of universal dielectric responseand a general distribution‐of‐activation‐energies model for dielectric and conducting systems". Journal of applied physics. 58 (5): 1971. {{cite journal}}: Cite has empty unknown parameter: |1= (help)
  4. ^ Pattanayak, Samita (2014). "Generalizations of Effect of Dy-substitution on structural, electrical and magnetic properties of multiferroic BiFeO3 ceramics". Ceramics International. 40 (6): 7983. {{cite journal}}: Cite has empty unknown parameter: |1= (help)