Subramanian and A.W. Sleight Rare earths pyrochlores

M.A. Subramanian and A.W. Sleight, Rare earth pyrochlores 225 R. MiyawaM and I. Nakai, Crystal structures curare earth minerals 249 D.R. Chopra, Appearance potential spectroscopy of lanthanides and their intermetallics 519 Author index 547 Subject index 579... 

The third and fourth chapters deal with special classes of materials rather than measuring techniques as found in the first two chapters and the last one of this volume. In a brief, but powerful, review M.A. Subramanian and A.W. Sleight (chapter 107) discuss the chemistry, structure, electrical, magnetic and thermal behaviors spectroscopic (vibrational, ultraviolet-visible and Mossbauer) properties and luminescence of pyrochlores. Pyrochlores are ternary oxides of the general formula A2M2O7, where A can be a divalent or trivalent cation, and M is a pentavalent cation if A is divalent or a tetravalent cation if A is trivalent. Over several hundred rare earth pyrochlores are known, many are electrical insulators, some are semiconductors, and even a few are metallic in nature. 

M.A. Subramanian and A.W. Sleight, Handbook on the Physics and Chemistry of Rare Earths, Vol. 16, Rare Earth Pyrochlores, K.A. Gschneidner and L. Eyring (Eds), Elsevier, 1993. 

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