Please use this identifier to cite or link to this item:
|Title:||Coexistence of the Kondo effect and a ferromagnetic phase in magnetic tunnel junctions|
|Authors:||Yang, H. |
|Source:||Yang, H., Yang, S.-H., Ilnicki, G., Martinek, J., Parkin, S.S.P. (2011-05-23). Coexistence of the Kondo effect and a ferromagnetic phase in magnetic tunnel junctions. Physical Review B - Condensed Matter and Materials Physics 83 (17) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.83.174437|
|Abstract:||Planar macroscopic magnetic tunnel junctions exhibit well defined zero-bias anomalies when a thin layer of ferromagnetic CoFe(B) nanodots is inserted within a MgO based tunnel barrier. The conductance curves exhibit a single and a double peak, respectively, for antiparallel and parallel alignment of the magnetizations of the electrodes that sandwich the tunnel barrier. This leads to a suppression of the tunneling magnetoresistance near zero bias. We show that the double-peak structure indicates that the zero-bias anomaly is spin split due to a magnetic exchange interaction between the magnetic nanodots and the ferromagnetic electrodes. Using a model based on an Anderson quantum dot coupled to ferromagnetic leads, we show that these results imply the coexistence of a Kondo effect and ferromagnetism. © 2011 American Physical Society.|
|Source Title:||Physical Review B - Condensed Matter and Materials Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 14, 2017
WEB OF SCIENCETM
checked on Nov 18, 2017
checked on Dec 10, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.