Magnetic and crystallographic properties of ZrM2−Zn20+ (M=Cr–Cu)
| Autor: | M. Kindy, B.W. Fulfer, Julia Y. Chan, C. Georgen, Eteri Svanidze, Emilia Morosan, S.H. Lapidus |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Magnetism Intermetallic 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Bond length Crystallography Transition metal 0103 physical sciences Diamagnetism Itinerant magnetism 010306 general physics 0210 nano-technology |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 416:401-407 |
| ISSN: | 0304-8853 |
| Popis: | Single crystals of the cubic Laves ternaries ZrM2−δZn20+δ (M=Mn, Fe, Co, Ni and Cu, 0 ≤ δ ≤ 1 ) have been synthesized using a self-flux method. The magnetic properties of these compounds were compared with structurally similar cubic binaries ZrM2 (M=Mn, Fe, Co, Ni and Cu). A transition from local to itinerant moment magnetism was observed for M=Fe and M=Mn, while all other ternaries exhibit weakly para- or diamagnetic behavior. The local-to-itinerant crossover can be explained by a nearly two-fold increase of the M – M bond length dM–M in ZrM2−δZn20+δ compounds, as compared with the ZrM2 binaries. Additionally, we report two new compounds in this series ZrCrZn21 and ZrCu2Zn20. Analysis of crystallographic and magnetic trends in these materials will aid in understanding of magnetism in general and 3 d intermetallics in particular. |
| Databáze: | OpenAIRE |
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