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Rücktitelbild: Unexpected Synergy between Magnetic Iron Chains and Stacked B6 Rings in Nb6Fe1− xIr6+ xB8 (Angew. Chem. 48/2014).
- Source :
- Angewandte Chemie; Nov2014, Vol. 126 Issue 48, p13510-13393, 1p
- Publication Year :
- 2014
-
Abstract
- The synergistic combination of experiment and density functional theory has led to the discovery of the first ferromagnetic material, Nb6Fe1−xIr6+xB8, containing in its crystal structure iron chains embedded in stacked B6 rings. The strong ferromagnetic Fe – Fe interactions found in the iron chains induce an unexpected strengthening of the B – B interactions in the B6 rings. Beside these strong B – B interactions, strong interlayer metal – boron bonds (Ir – B and Nb – B) ensure the overall structural stability of this phase, while the magnetic Fe – Fe interactions are mainly responsible for the observed ferromagnetic ordering below TC=350 K. Eine gegenseitige Abhängigkeit von ferromagnetischen Eisenketten und gestapelten B6 ‐ Ringen (siehe Bild) wird in dem neuen ferromagnetischen Material Nb6Fe1−xIr6+xB8 (TC=350 K) durch Experimente und Dichtefunktionaltheorie gefunden. Starke magnetische Fe ‐ Fe ‐ Wechselwirkungen in den Eisenketten induzieren eine unerwartete Verstärkung der B ‐ B ‐ Wechselwirkungen in den B6 ‐ Ringen. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00448249
- Volume :
- 126
- Issue :
- 48
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 99517735
- Full Text :
- https://doi.org/10.1002/ange.201408886