Structure and Bonding in Yb4MgGe4: Yb2+/Yb3+ Mixed-Valency and Charge Separation.
β Scribed by Paul H. Tobash; Svilen Bobev
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 10 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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We present a model for Yb4As3 which can explain semiquantitatively a number of its unusual properties. Based on the view of the Yb-sites as being aligned on chains, the structural phase transition at Tc ~ 300 K is described by a band Jahn-Teller effect of correlated electrons being driven by a charg
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