Interlayer exchange coupling between [Pd/Co] multilayers and CoFeB/MgO layers with perpendicular magnetic anisotropy

2012 ◽  
Vol 101 (24) ◽  
pp. 242403 ◽  
Author(s):  
J. H. Jung ◽  
S. H. Lim ◽  
S. R. Lee
Keyword(s):  
Magnetic Anisotropy ◽  
Exchange Coupling ◽  
Perpendicular Magnetic Anisotropy ◽  
Interlayer Exchange Coupling ◽  
Interlayer Exchange ◽  
Mgo Layers

Oscillatory interlayer exchange coupling in MgO tunnel junctions with perpendicular magnetic anisotropy

2010 ◽  
Vol 81 (22) ◽  
Author(s):  
Lavinia E. Nistor ◽  
Bernard Rodmacq ◽  
Stéphane Auffret ◽  
Alain Schuhl ◽  
Mairbek Chshiev ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Exchange Coupling ◽  
Tunnel Junctions ◽  
Perpendicular Magnetic Anisotropy ◽  
Interlayer Exchange Coupling ◽  
Interlayer Exchange

scholarly journals The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$(001) superlattices

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tobias Warnatz ◽  
Fridrik Magnus ◽  
Nanny Strandqvist ◽  
Sarah Sanz ◽  
Hasan Ali ◽  
...  
Keyword(s):  
Quantum Well ◽  
Exchange Coupling ◽  
Neutron Reflectometry ◽  
Interlayer Exchange Coupling ◽  
Magnetic Switching ◽  
Interlayer Exchange ◽  
Quantum Well States ◽  
The Impact ◽  
Polarized Neutron Reflectometry ◽  
Mgo Layers

AbstractThe strength of the interlayer exchange coupling in [Fe/MgO]$$_N$$ N (001) superlattices with 2 ≤ N ≤ 10 depends on the number of bilayer repeats (N). The exchange coupling is antiferromagnetic for all the investigated thicknesses while being nine times larger in a sample with N = 4 as compared to N = 2. The sequence of the magnetic switching in two of the samples (N = 4, N = 8) is determined using polarized neutron reflectometry. The outermost layers are shown to respond at the lowest fields, consistent with having the weakest interlayer exchange coupling. The results are consistent with the existence of quantum well states defined by the thickness of the Fe and the MgO layers as well as the number of repeats (N) in [Fe/MgO]$$ _{N}$$ N (001)superlattices.

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