Rodrigues Isadora R, Lukina Liubov, Dehaeck Sam, Colinet Pierre, Binnemans Koen, Fransaer Jan
Department of Material Engineering, KU Leuven , Kasteelpark Arenberg 44, P.O. Box 2450, B-3001 Heverlee, Belgium.
Université Libre de Bruxelles (ULB), TIPs (Transfers, Interfaces and Processes) , CP165/67, Avenue F. D. Roosevelt 50, 1050 Brussels, Belgium.
J Phys Chem Lett. 2017 Nov 2;8(21):5301-5305. doi: 10.1021/acs.jpclett.7b02226. Epub 2017 Oct 16.
Mach-Zehnder interferometry was applied to explore the effects of inhomogeneous magnetic fields on the mobility of rare-earth ions in aqueous solutions. No migration of ions was observed in a thermodynamically closed system when a homogeneous solution was subjected to a magnetic field gradient alone. However, magnetomigration could be triggered by a concentration gradient of the rare-earth ions in the solution. When a concentration gradient was introduced in the sample by solvent evaporation, consistent migration of paramagnetic Dy ions from the bulk solution to regions with stronger magnetic fields was observed. By contrast, no movement was detected for diamagnetic Y ions in the presence of a concentration gradient.
马赫-曾德尔干涉测量法被用于探究非均匀磁场对水溶液中稀土离子迁移率的影响。当均匀溶液仅受到磁场梯度作用时，在热力学封闭系统中未观察到离子迁移。然而，溶液中稀土离子的浓度梯度可引发磁迁移。当通过溶剂蒸发在样品中引入浓度梯度时，观察到顺磁性镝离子从本体溶液向磁场更强区域的一致迁移。相比之下，在存在浓度梯度的情况下，未检测到抗磁性钇离子的移动。
