Quantum-well states and exchange coupling in fcc (111) magnetic multilayers

1994 ◽  
Vol 50 (21) ◽  
pp. 16066-16069 ◽  
Author(s):  
D. M. Edwards ◽  
J. Mathon ◽  
R. B. Muniz
Keyword(s):  
Quantum Well ◽  
Exchange Coupling ◽  
Magnetic Multilayers ◽  
Quantum Well States

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.

Interface reflectivities and quantum-well states in magnetic multilayers

1998 ◽  
Vol 58 (20) ◽  
pp. 13721-13733 ◽  
Author(s):  
K. Wildberger ◽  
R. Zeller ◽  
P. H. Dederichs ◽  
J. Kudrnovský ◽  
P. Weinberger
Keyword(s):  
Quantum Well ◽  
Magnetic Multilayers ◽  
Quantum Well States

Quantum-well theory of the exchange coupling in magnetic multilayers with application to Co/Cu/Co(001)

1997 ◽  
Vol 56 (18) ◽  
pp. 11797-11809 ◽  
Author(s):  
J. Mathon ◽  
Murielle Villeret ◽  
A. Umerski ◽  
R. B. Muniz ◽  
J. d’Albuquerque e Castro ◽  
...  
Keyword(s):  
Quantum Well ◽  
Exchange Coupling ◽  
Magnetic Multilayers

Quantum-Well Contributions to the RKKY Coupling in Magnetic Multilayers

1993 ◽  
Vol 313 ◽  
Author(s):  
B. A. Jones ◽  
C. B. Hanna
Keyword(s):  
Quantum Well ◽  
Fermi Surface ◽  
Free Electron ◽  
Bound States ◽  
Finite Size ◽  
Oscillation Period ◽  
Magnetic Multilayers ◽  
Potential Well ◽  
Experimental Systems ◽  
Quantum Well States

ABSTRACTWe study the effects of quantum-well states on the calculated RKKY coupling. We find that the bound states of a finite-size potential well of depth V give an added oscillation period of size For the simplest case of a spherical free-electron Fermi surface, thus two periods appear: the original, “fast,” π/kf oscillation, and the quantum-well one The quantum-well contributions have larger amplitude, and are in fact the predominant oscillation. For physically reasonable V (tenths of an eV) this period is around 8–10Å. We discuss evidence for these effects in experimental systems.

Hybridization and the effective mass of quantum-well states in magnetic multilayers

1994 ◽  
Vol 50 (12) ◽  
pp. 8954-8956 ◽  
Author(s):  
P. D. Johnson ◽  
K. Garrison ◽  
Q. Dong ◽  
N. V. Smith ◽  
Dongqi Li ◽  
...  
Keyword(s):  
Quantum Well ◽  
Effective Mass ◽  
Magnetic Multilayers ◽  
Quantum Well States
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