Defect ordering in early transition-metal sulfides with the NaCl-type structure |
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Authors: | Hugo F Franzen Jacob CW Folmer |
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Institution: | 1. Ames Laboratory, Department of Energy, Iowa State University, Ames, Iowa 50011 USA;2. Department of Chemistry, Iowa State University, Ames, Iowa 50011 USA |
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Abstract: | The defect rock-salt type materials Zr1?xS, Sc1?xS, and Lu1?xS have been shown to exhibit a complex variety of ordered superstructures. These superstructures are reviewed within the context of Landau's theory of symmetry and phase transitions, and it is concluded that there is a significant similarity in the transitions when they are considered from the point of view of reciprocal space. |
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