• Corpus ID: 117459321

Long-range antiferromagnetic interactions in ZnFe2O4 and CdFe2O4

  title={Long-range antiferromagnetic interactions in ZnFe2O4 and CdFe2O4},
  author={Ching Hsuang Cheng},
  journal={arXiv: Materials Science},
  • C. Cheng
  • Published 25 April 2008
  • Physics
  • arXiv: Materials Science
For the first time, the Fe-Fe interactions in the geometrically frustrated antiferromagnetic systems of zinc and cadmium ferrites are determined quantitatively by the first-principles methods of density functional theory. Both the generalized gradient approximation (GGA) as well as GGA plus the onesite Coulomb interaction (GGA+U) are considered for the exchange-correlation energy functional. The interactions up to third neighbours are found to be all antiferromagnetic for both materials… 

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