Structure and physical features of the rare-earth borides
- 27 September 1985
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 52 (3) , 589-610
- https://doi.org/10.1080/13642818508240625
Abstract
During the last three decades a large interest has developed in the field of rare-earth borides. Six different families have been discovered: REB2, REB4, RE2B5, REB6, REB12 and REB∼66. Their extension is discussed, and it is shown on the base of both geometrical and electronic considerations how the RE atoms contribute to the stabilization of the electron-deficient boron framework. Attention has been devoted to the ability of metal or non-metal impurities either to stabilize a particular structure or to modify drastically the electrical and magnetic properties of the borides. A wide range of the fascinating physical properties of the rare-earth borides is considered, including insulator–metal transitions, superconductivity, mixed-valence behaviour, magnetic phase transitions and thermoelectronic properties.Keywords
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